Texas Instruments 的 LM73605,73606 EVM User Guide 规格书

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SNVU579–September 2017

LM73605 / LM73606 EVM User’s Guide

User's Guide

SNVU579–September 2017

LM73605 / LM73606 EVM User’s Guide

The LM73605 / LM73606 evaluation module (EVM) is designed to help customers evaluate the

performance of the LM73605 / LM73606 synchronous step-down voltage converters. The EVM contains

one LM73605 or LM73606 device in the 30-pin wettable flanks QFN (WQFN) package, as shown in

Table 1. It is capable of delivering 5-V output voltage and up to 5-A (LM73605) or 6-A (LM73606) load

current with exceptional efficiency and output accuracy in a very small solution size. The EVM provides

multiple power connectors and test points, as well as mode setting options and enable input options, for

customer convenience. It also provides a good layout example, which is optimized for EMI performance

and thermal performance.

Table 1. Device and Package Configurations

CONVERTER IC PACKAGE

U1 LM73605 30-pin wettable flanks QFN (WQFN)

6 mm × 4 mm × 0.8 mm

LM73606

Contents

1 Introduction ................................................................................................................... 2

2 Quick Start.................................................................................................................... 3

3 Detailed Descriptions........................................................................................................ 4

4 Schematic..................................................................................................................... 6

5 Board Layout ................................................................................................................. 7

6 Bill of Materials ............................................................................................................. 10

7 Performance Curves ....................................................................................................... 13

Trademarks

All trademarks are the property of their respective owners.

‘5‘ TEXAS INSTRUMENTS UHF

CSS

RSYNC

RENT

RENB

PVIN

PGND

CBOOT

VCC

BIAS

AGND

VIN

COUT

CBOOT

CIN

CVCC

VOUT

RFBT

RFBB

SYNC/

MODE

SS/TRK PGOOD

VCC

BIAS

SS/TRK

423

PVIN

DAP PVIN

PGND

CBOOT

PGND

PGOOD

8AGND

SYNC/

MODE

29 28 27

13 14 15

SW PVIN

NC NC NC NC

Introduction

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LM73605 / LM73606 EVM User’s Guide

1 Introduction

1.1 LM73605 / LM73606 Synchronous Step-Down Voltage Converter

The LM73605/LM73606 family of devices are easy-to-use synchronous step-down DC-DC converters

capable of driving up to 5 A (LM73605) or 6 A (LM73606) of load current from a supply voltage ranging

from 3.5 V to 36 V. The LM73605/LM73606 provide exceptional efficiency and output accuracy in a very

small solution size. Peak-current-mode control is employed. Additional features such as adjustable

switching frequency, synchronization to an external clock, FPWM option, power-good flag, precision

enable, adjustable soft start, and tracking provide both flexible and easy-to-use solutions for a wide range

of applications. Automatic frequency foldback at light load and optional external bias improve efficiency

over the entire load range. The family requires few external components and has a pinout designed for

simple PCB layout with optimal EMI and thermal performance. Protection features include thermal

shutdown, input undervoltage lockout, cycle-by-cycle current limiting, and hiccup short-circuit protection.

The LM73605 and LM73606 devices are pin-to-pin compatible for easy current scaling.

The pin configuration of the LM73605/6 is shown in Figure 1 and the schematic is shown in Figure 2 for

your quick reference. See the LM73605/LM73606 data sheet for more detailed feature descriptions and

design guide.

Figure 1. LM73605/6 Pin Configuration (30-Pin WQFN

Package Top View) Figure 2. LM73605/6 Schematic

1.2 LM73605 / LM73606 Evaluation Module

The LM73605 / LM73606 EVM has three variants to cover a wide range of applications. The options

include LM73605 (5-A maximum DC output current) with 400-kHz switching frequency and 2.2-MHz

switching frequency, and LM73606 (6-A maximum DC output current) with 400-kHz switching frequency,

as listed in Table 2. The output voltage is 5 V.

Table 2. EVM Variants

Label U1 IOUT Switching

Frequency VIN Range VOUT

LM73605EVM-5V-2MHz LM73605 5 A 2.2 MHz 6 to 36 V 5 V

LM73605EVM-5V-400K LM73605 5 A 400 kHz 6 to 36 V 5 V

LM73606EVM-5V-400K LM73606 6 A 400 kHz 6 to 36 V 5 V

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Quick Start

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LM73605 / LM73606 EVM User’s Guide

2 Quick Start

1. Connect the voltage supply between VIN and PGND connectors, using short and thick wires.

2. Connect the load of the converter between VOUT and PGND connectors, using short and thick wires.

3. Set the supply voltage (VIN) at an appropriate level between 6 V to 36 V. Set the current limit of the

supply to an appropriate level as well.

4. Turn on the power supply. With the default configuration, the EVM should power up and provide VOUT =

5 V.

5. Monitor the output voltage. The maximum load current should be 5 A with LM73605, or 6 A with

LM73606.

See Figure 3 for the location of the connectors.

Figure 3. Top View of LM73605/LM73606 EVM

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Detailed Descriptions

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3 Detailed Descriptions

This section describes the connectors and the test points on the EVM and how to properly connect, set up

and use the LM73605/LM73606 EVM. See Figure 3 for a top view of the EVM.

VOUT —Output voltage of the converter.

VOUT connector and test point connect to the power inductor and the output capacitors. Connect

the loading device between VOUT and PGND connectors to provide loading to the converter.

Connect the loading device to the board with short and thick wires to handle the large DC output

current.

PGND —Ground of the converter.

It is connected to the PGND and AGND of the device, as well as the input and output capacitors.

PGND is the current return path for both supply voltage and load. Connect to supply and load

grounds with short and thick wires.

VIN —Input voltage to the converter.

VIN connector and test point connect to the input capacitors and the PVIN pins of the

LM73605/LM73606. Connect the supply voltage from a power supply or a battery between VIN and

PGND connectors as power input to the board. The voltage range should be higher than 3.5 V for

the device to be active. VIN higher than 6 V provides regulated 5 V output voltage. VIN should be no

higher than 36 V to avoid damaging the device. The current limit on the supply should be high

enough to provide the needed supply current. Otherwise the supply voltage will not maintain the

desire voltage. The supply voltage should be connected to the board with short and thick wires to

handle the pulsing input current. If long cables are used to power up the board, the damping

capacitor CBULK located on the bottom side of board should be added, to avoid oscillation between

the cable parasitic inductance and the low-ESR ceramic capacitors.

VIN-EMI —Input voltage to input filter of the converter

If the input filter is desired between the supply voltage and the LM73605/6, connect the supply

voltage between VIN-EMI and GND-EMI. The supply voltage should be connected to the board with

short and thick wires to handle pulsing input current.

GND-EMI —Ground connection near the input filter

This is the current return path for the supply connected to VIN-EMI. It provides a direct connection

to the input filter capacitors to best filter the conducted noises generated from the PCB. Use VIN-

EMI and GND-EMI connection if input filter is used and conducted EMI test is desired.

Input Filter—Prevent noise from contaminating supply voltage

The input filter consists of C-FLTs, L-IN and CBULK, located on the bottom side of the PCB. To

include the input filter in the power path, connect the supply voltage between the VIN-EMI and

GND-EMI connectors. The output of the filter is connected to the VIN net, which is connected to the

PVIN pins of the LM73605/LM73606 and the input capacitors. Note that the input filter components

are not mounted on the PCB by default.

Conducted EMI arises from the normal operation of switching circuits. The ON and OFF actions of

the power switches generate large discontinuous currents. The discontinuous currents are present

at the input side of buck converters. Voltage ripple generated by discontinuous currents can be

conducted to the voltage supply of the buck converter via physical contact of the conductors.

Without control, excessive input voltage ripple can compromise operation of the source. The input

filter helps to smooth out the voltage perturbations leading to the source.

Preliminary EMI test results are shown in Section 7.4.

EN — Test point to monitor the EN pin of the device

This test point is to monitor the voltage on the device EN pin.

EN Jumper —Set EN pin options

As noted on the board, this jumper is to select which voltage is used to enable the device.

1. PIN-1 to PIN-2: EN is connected to EN-EXT test point through a resistor divider;

2. PIN-2 to PIN-3 (default): EN is connected to VIN through a resistor divider.

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Detailed Descriptions

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LM73605 / LM73606 EVM User’s Guide

The divider, RENT and RENB, locates right above the EN jumper on the PCB.

The default setting is jumper on PIN-2 and PIN-3. The board will start when VIN is about 3.5 V with

this setting. The EN voltage is calculated by Equation 1.

VEN = VIN × RENB / (RENT + RENB) (1)

When PIN-1 and PIN-2 are connected, the EN voltage is calculated by Equation 2.

VEN = VEN-EXT × RENB / (RENT + RENB) (2)

If a resistor divider is not desired, the RENB can be removed from the board and the EN pin voltage

will be equal to either EN-EXT or VIN voltage, depending on the jumper location. It is recommended

to keep RENT as a current limiting and noise filtering resistor at EN pin.

EN-EXT —External voltage input to drive EN

When EN jumper has PIN-1 and PIN-2 connected, the enable threshold is driven by the voltage on

the EN-EXT test point. The EN pin voltage can be found by Equation 2.

Remove RENB from the board if it is desired to have the same voltage on the EN pin as the EN-EXT

voltage.

PGOOD —Test point to monitor the PGOOD pin

PGOOD test point is used to monitor the power-good flag. This flag indicates whether the output

voltage has reached its regulation level. The PGOOD pin of the device is an open-drain output that

is pulled up to VOUT on this board through RPG resistor.

SYNC/MODE Jumper —Operation mode setting and synchronization clock input

As noted on the PCB, the SYNC/MODE jumper is used to select the desired light-load operation

mode.

1. PIN-1 to PIN-2: FPWM mode;

2. PIN-2 to PIN-3 (default): auto mode;

3. Open, connect external clock input to SYNC test point for synchronization and FPWM mode.

The default is PIN-2 and PIN-3 connected together and the device will operate in auto mode at light

loads. With auto mode, discontinuous conduction mode (DCM) and pulse frequency modulation

(PFM) mode are employed at light loads to provide high efficiency. PFM mode also provides very

low quiescent current at no load. At heavier load, when inductor current is in DCM or continuous

conduction mode (CCM) operation, the switching frequency is determined by the RT resistor on the

board, which is either 400 kHz or 2.2 MHz.

When PIN-1 and PIN-2 are connected, the device operates in the force PWM (FPWM) mode. In

FPWM, the inductor current will be in CCM regardless of load. The switching frequency is the same

at light loads as that of heavier loads. The switching frequency will be programmed by RT resistor

on the board, which is either 400 kHz or 2.2 MHz.

If synchronization to an external clock is desired, leave the SYNC/MODE jumper open and connect

the clock input between SYNC test point and a GND test point. The device will operate in FPWM

when it is synchronized to an external clock.

SYNC —Test point to monitor the SYNC/MODE pin and external clock input

The SYNC test point can used to monitor the SYNC/MODE pin voltage on the device. It is also the

external clock input if synchronization is needed. Connect the external clock input to the SYNC test

point with the SYNC/MODE jumper open on all pins. The external clock frequency must be

between 350 kHz and 2.2 MHz if used. The device operates in FPWM when synchronized to a

clock.

VCC —Test point to monitor the VCC pin

This test point is to monitor the voltage at the VCC output.

Edge Connector —Additional connector to attach the EVM to a cable harness.

The edge connector provides the option of connecting the EVM to a cable harness if available. It

includes the power connections: VIN, GND, VOUT, and VIN-EMI. It also has Kelvin sense

connections for VIN (VIS), VOUT (VOS_P), and GND (VSNS-). See the schematic in Figure 4 for

all the signals connected to the edge connector.

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Schematic

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4 Schematic

The three variants of the EVM shown in Table 2 share the same schematic with component variants

shown in Section 6. The LM73605EVM_5V_400K Schematic is shown in Figure 4 as an example.

Figure 4. LM73605EVM_5V_400K Schematic

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Board Layout

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LM73605 / LM73606 EVM User’s Guide

5 Board Layout

Figure 5 through Figure 9 show the board layout for the LM7360xEVM. The EVM offers resistors,

capacitors, and test points to configure the output voltage, precision enable pin, set frequency and

external clock synchronization.

The 30-pin WQFN package offers an exposed thermal pad which must be soldered to the copper landing

on the PCB for optimal thermal performance. The PCB consists of a 4-layer design. There are 2-oz copper

planes on the top and bottom and 1-oz copper mid-layer planes to dissipate heat with an array of thermal

vias under the thermal pad to connect to all four layers.

Test points have been provided for ease of use to connect the power supply, required load and to monitor

critical signals. The 12-pin edge connector can also be used to facilitate the use of a cable harness if one

is required.

Figure 5. Top Layer and Silkscreen Layer

Board Layout

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Figure 6. Top Layer Routing

Figure 7. Mid-Layer 1 Ground Plane

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Board Layout

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LM73605 / LM73606 EVM User’s Guide

Figure 8. Mid-Layer 2 Routing

Figure 9. Bottom Layer Routing

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Bill of Materials

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6 Bill of Materials

There are three sets of variants for the LM73605/LM73606 EVM, as shown in Table 2. The bills of

materials of the three variants are shown in Table 3,Table 4 and Table 5.

Table 3. LM73605EVM-5V-2MHz 5-A 2.2-MHz EVM Bill of Materials

Designator Comment Description Manufacture

rPart Number Quantity

C1, C8 CO, CI1 CAP, CERM, 0.47 µF, 50 V, +/- 10%, X7R,

0805 MuRata GRM21BR71H474KA88L 2

C2, C3 CO1, CO2 CAP, CERM, 22 µF, 16 V, +/- 10%, X7R,

1210 MuRata GRM32ER71C226KE18L 2

C7 CB CAP, CERM, 0.47uF, 25V, +/-10%, X5R,

0603 MuRata GRM188R61E474KA12D 1

C9 CI2 CAP, CERM, 10 µF, 50 V, +/- 10%, X7R,

1210 MuRata GRM32ER71H106KA12L 1

C16 CVCC CAP, CERM, 2.2uF, 10V, +/-10%, X6S,

0603 MuRata GRM188C81A225KE34D 1

L1 L Inductor, Shielded, Composite, 2.2 µH, 17.8

A, 0.01 ohm, SMD Coilcraft XAL7070-222MEB 1

R1 RINJ RES, 100, 1%, 0.125 W, 0805 Vishay-Dale CRCW0805100RFKEA 1

R2, R5 RFBT, RPG RES, 100 k, 1%, 0.1 W, 0603 Vishay-Dale CRCW0603100KFKEA 2

R3 RBIAS RES, 0, 5%, 0.1 W, 0603 Vishay-Dale CRCW06030000Z0EA 1

R4 RFBB RES, 24.9 k, 1%, 0.1 W, 0603 Vishay-Dale CRCW060324K9FKEA 1

R6 RT RES, 17.8 k, 1%, 0.1 W, 0603 Vishay-Dale CRCW060317K8FKEA 1

R8 RENT RES, 200 k, 1%, 0.125 W, 0805 Vishay-Dale CRCW0805200KFKEA 1

R9 RENB RES, 121 k, 1%, 0.125 W, 0805 Vishay-Dale CRCW0805121KFKEA 1

R10 RPU RES, 10.0 k, 1%, 0.1 W, 0603 Vishay-Dale CRCW060310K0FKEA 1

U1 LM73605RNPR 3.5V to 36V 5A Synchronous Step-Down

Voltage Regulator, RNP0030A (WQFN-30) Texas

Instruments LM73605RNPR 1

C4, C5 CO3, CO4 CAP, CERM, 22 µF, 16 V, +/- 10%, X7R,

1210 MuRata GRM32ER71C226KE18L 0

C6 CO5 CAP, CERM, 0.47 µF, 50 V, +/- 10%, X7R,

0805 MuRata GRM21BR71H474KA88L 0

C10 CI3 CAP, CERM, 10 µF, 50 V, +/- 10%, X7R,

1210 MuRata GRM32ER71H106KA12L 0

C11, C12,

C13 C-FLT1, C-FLT2,

C-FLT3 CAP, CERM, 2.2 µF, 50 V, +/- 10%, X5R,

1206 MuRata GRM31CR61H225KA88L 0

C14 CBULK CAP, AL, 100 µF, 63 V, +/- 20%, 0.35 ohm,

SMD Panasonic EEE-FK1J101P 0

C15 CFF CAP, CERM, 4.7 pF, 50 V, +/- 5%,

C0G/NP0, 0603 AVX 06035A4R7CAT2A 0

C17 CBIAS CAP, CERM, 1 µF, 25 V, +/- 10%, X7R,

0603 Kemet C0603C105K3RACTU 0

C18 CSS CAP, CERM, 0.01 µF, 100 V, +/- 20%, X7R,

0603 AVX 06031C103MAT2A 0

L2 L-IN Inductor, Shielded, Composite, 2.2uH,

12.9A, 0.0137 ohm, SMD Coilcraft XAL7030-222MEB 0

R7 RSYNC RES, 100, 1%, 0.1 W, 0603 Vishay-Dale CRCW0603100RFKEA 0

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Bill of Materials

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Table 4. LM73605EVM-5V-400K 5-A 400-kHz EVM Bill of Materials

Designator Comment Description Manufacturer Part Number Quantity

C1, C8 CO, CI1 CAP, CERM, 0.47 µF, 50 V, +/- 10%, X7R, 0805 MuRata GRM21BR71H474KA88L 2

C2, C3, C4,

C5 CO1, CO2, CO3,

CO4 CAP, CERM, 22 µF, 16 V, +/- 10%, X7R, 1210 MuRata GRM32ER71C226KE18L 4

C7 CB CAP, CERM, 0.47uF, 25V, +/-10%, X5R, 0603 MuRata GRM188R61E474KA12D 1

C9, C10 CI2, CI3 CAP, CERM, 10 µF, 50 V, +/- 10%, X7R, 1210 MuRata GRM32ER71H106KA12L 2

C16 CVCC CAP, CERM, 2.2uF, 10V, +/-10%, X6S, 0603 MuRata GRM188C81A225KE34D 1

L1 L Inductor, Shielded, Composite, 6.8 µH, 9.2 A,

0.02 ohm, SMD Coilcraft XAL7070-682MEB 1

R1 RINJ RES, 100, 1%, 0.125 W, 0805 Vishay-Dale CRCW0805100RFKEA 1

R2, R5, R6 RFBT, RPG, RT RES, 100 k, 1%, 0.1 W, 0603 Vishay-Dale CRCW0603100KFKEA 3

R3 RBIAS RES, 0, 5%, 0.1 W, 0603 Vishay-Dale CRCW06030000Z0EA 1

R4 RFBB RES, 24.9 k, 1%, 0.1 W, 0603 Vishay-Dale CRCW060324K9FKEA 1

R8 RENT RES, 200 k, 1%, 0.125 W, 0805 Vishay-Dale CRCW0805200KFKEA 1

R9 RENB RES, 121 k, 1%, 0.125 W, 0805 Vishay-Dale CRCW0805121KFKEA 1

R10 RPU RES, 10.0 k, 1%, 0.1 W, 0603 Vishay-Dale CRCW060310K0FKEA 1

U1 LM73605RNPR 3.5V to 36V 5A Synchronous Step-Down

Voltage Regulator, RNP0030A (WQFN-30) Texas

Instruments LM73605RNPR 1

C6 CO5 CAP, CERM, 0.47 µF, 50 V, +/- 10%, X7R, 0805 MuRata GRM21BR71H474KA88L 0

C11, C12,

C13 C-FLT1, C-FLT2,

C-FLT3 CAP, CERM, 2.2 µF, 50 V, +/- 10%, X5R, 1206 MuRata GRM31CR61H225KA88L 0

C14 CBULK CAP, AL, 100 µF, 63 V, +/- 20%, 0.35 ohm,

SMD Panasonic EEE-FK1J101P 0

C15 CFF CAP, CERM, 4.7 pF, 50 V, +/- 5%, C0G/NP0,

0603 AVX 06035A4R7CAT2A 0

C17 CBIAS CAP, CERM, 1 µF, 25 V, +/- 10%, X7R, 0603 Kemet C0603C105K3RACTU 0

C18 CSS CAP, CERM, 0.01 µF, 100 V, +/- 20%, X7R,

0603 AVX 06031C103MAT2A 0

L2 L-IN Inductor, Shielded, Composite, 2.2uH, 12.9A,

0.0137 ohm, SMD Coilcraft XAL7030-222MEB 0

R7 RSYNC RES, 100, 1%, 0.1 W, 0603 Vishay-Dale CRCW0603100RFKEA 0

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Bill of Materials

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Table 5. LM73606EVM-5V-400K 6-A 400-kHz EVM Bill of Materials

Designator Comment Description Manufacturer Part Number Quantity

C1, C8 CO, CI1 CAP, CERM, 0.47 µF, 50 V, +/- 10%, X7R,

0805 MuRata GRM21BR71H474KA88L 2

C2, C3, C4,

C5 CO1, CO2, CO3,

CO4 CAP, CERM, 22 µF, 16 V, +/- 10%, X7R, 1210 MuRata GRM32ER71C226KE18L 4

C7 CB CAP, CERM, 0.47uF, 25V, +/-10%, X5R, 0603 MuRata GRM188R61E474KA12D 1

C9, C10 CI2, CI3 CAP, CERM, 10 µF, 50 V, +/- 10%, X7R, 1210 MuRata GRM32ER71H106KA12L 2

C16 CVCC CAP, CERM, 2.2uF, 10V, +/-10%, X6S, 0603 MuRata GRM188C81A225KE34D 1

L1 L Inductor, Shielded, Composite, 6.8 µH, 9.2 A,

0.02 ohm, SMD Coilcraft XAL7070-682MEB 1

R1 RINJ RES, 100, 1%, 0.125 W, 0805 Vishay-Dale CRCW0805100RFKEA 1

R2, R5, R6 RFBT, RPG, RT RES, 100 k, 1%, 0.1 W, 0603 Vishay-Dale CRCW0603100KFKEA 3

R3 RBIAS RES, 0, 5%, 0.1 W, 0603 Vishay-Dale CRCW06030000Z0EA 1

R4 RFBB RES, 24.9 k, 1%, 0.1 W, 0603 Vishay-Dale CRCW060324K9FKEA 1

R8 RENT RES, 200 k, 1%, 0.125 W, 0805 Vishay-Dale CRCW0805200KFKEA 1

R9 RENB RES, 121 k, 1%, 0.125 W, 0805 Vishay-Dale CRCW0805121KFKEA 1

R10 RPU RES, 10.0 k, 1%, 0.1 W, 0603 Vishay-Dale CRCW060310K0FKEA 1

U1 LM73606RNPR 3.5V to 36V 5A Synchronous Step-Down

Voltage Regulator, RNP0030A (WQFN-30) Texas

Instruments LM73606RNPR 1

C6 CO5 CAP, CERM, 0.47 µF, 50 V, +/- 10%, X7R,

0805 MuRata GRM21BR71H474KA88L 0

C11, C12,

C13 C-FLT1, C-FLT2,

C-FLT3 CAP, CERM, 2.2 µF, 50 V, +/- 10%, X5R, 1206 MuRata GRM31CR61H225KA88L 0

C14 CBULK CAP, AL, 100 µF, 63 V, +/- 20%, 0.35 ohm,

SMD Panasonic EEE-FK1J101P 0

C15 CFF CAP, CERM, 4.7 pF, 50 V, +/- 5%, C0G/NP0,

0603 AVX 06035A4R7CAT2A 0

C17 CBIAS CAP, CERM, 1 µF, 25 V, +/- 10%, X7R, 0603 Kemet C0603C105K3RACTU 0

C18 CSS CAP, CERM, 0.01 µF, 100 V, +/- 20%, X7R,

0603 AVX 06031C103MAT2A 0

L2 L-IN Inductor, Shielded, Composite, 2.2uH, 12.9A,

0.0137 ohm, SMD Coilcraft XAL7030-222MEB 0

R7 RSYNC RES, 100, 1%, 0.1 W, 0603 Vishay-Dale CRCW0603100RFKEA 0

l TEXAS INSTRUMENTS um um 505

VOUT

(2 A/DIV)

Time (200 µs/DIV)

IOUT

(500 mV/

DIV AC)

Load Current (A)

Output Voltage (V)

0.001 0.01 0.02 0.05 0.1 0.2 0.5 1 2 3 456

4.8

4.84

4.88

4.92

4.96

5.04

5.08

5.12

5.16

5.2

REG_

VIN = 12 V

VIN = 24 V

Load Current (A)

Output Voltage (V)

0.001 0.01 0.02 0.05 0.1 0.2 0.5 1 2 3 456

4.95

4.96

4.97

4.98

4.99

5.01

5.02

5.03

5.04

5.05

REG_

VIN = 12 V

VIN = 24 V

Load Current (A)

Efficiency (%)

0.001 0.01 0.02 0.05 0.1 0.2 0.5 1 2 3 456

100

EFF_

VIN = 12 V

VIN = 24 V

Load Current (A)

Efficiency (%)

0 0.6 1.2 1.8 2.4 3 3.6 4.2 4.8 5.4 6

100

EFF_

VIN = 12 V

VIN = 24 V

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Performance Curves

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LM73605 / LM73606 EVM User’s Guide

7 Performance Curves

7.1 LM73605EVM-5V-2MHz 5-A 2.2-MHz Board Curves

Figure 10. LM73605 5-V 2.2-MHz Efficiency in Auto Mode Figure 11. LM73605 5-V 2.2-MHz Efficiency in FPWM Mode

Figure 12. LM73605 5-V 2.2-MHz VOUT Regulation in Auto

Mode Figure 13. LM73605 5-V 2.2-MHz VOUT Regulation in FPWM

Mode

Figure 14. LM73605 5-V 2.2-MHz Load Transient VIN = 12 V,

IOUT = 10 mA to 5 A to 10 mA Figure 15. LM73605 5-V 2.2-MHz EVM Thermal Picture with

VIN = 12 V IOUT = 5 A

l TEXAS INSTRUMENTS mo mo 505

VOUT

(2 A/DIV)

Time (200 µs/DIV)

IOUT

(500 mV/

DIV AC)

Load Current (A)

Output Voltage (V)

0.001 0.01 0.02 0.05 0.1 0.2 0.5 1 2 3 4 56

4.8

4.84

4.88

4.92

4.96

5.04

5.08

5.12

5.16

5.2

REG_

VIN = 12 V

VIN = 24 V

Load Current (A)

Output Voltage (V)

0.001 0.01 0.02 0.05 0.1 0.2 0.5 1 2 3 456

4.95

4.96

4.97

4.98

4.99

5.01

5.02

5.03

5.04

5.05

REG_

VIN = 12 V

VIN = 24 V

Load Current (A)

Efficiency (%)

0.001 0.01 0.02 0.05 0.1 0.2 0.5 1 2 3 456

100

EFF_

VIN = 12 V

VIN = 24 V

Load Current (A)

Efficiency (%)

0 0.6 1.2 1.8 2.4 3 3.6 4.2 4.8 5.4 6

100

EFF_

VIN = 12 V

VIN = 24 V

Performance Curves

www.ti.com

14 SNVU579–September 2017

Submit Documentation Feedback

LM73605 / LM73606 EVM User’s Guide

7.2 LM73605EVM-5V-400K 5-A 400-kHz Board Curves

Figure 16. LM73605 5-V 400-kHz Efficiency in Auto Mode Figure 17. LM73605 5-V 400-kHz Efficiency in FPWM Mode

Figure 18. LM73605 5-V 400-kHz VOUT Regulation in Auto

Mode Figure 19. LM73605 5-V 400-kHz VOUT Regulation in FPWM

Mode

Figure 20. LM73605 5-V 400-kHz Load Transient VIN = 12 V,

IOUT = 10 mA to 5 A to 10 mA Figure 21. LM73605 5-V 400-kHz EVM Thermal Picture with

VIN = 12 V IOUT = 5 A

l TEXAS INSTRUMENTS mo mo 505

VOUT

(2 A/DIV)

Time (200 µs/DIV)

IOUT

(500 mV/

DIV AC)

Load Current (A)

Output Voltage (V)

0.001 0.01 0.02 0.05 0.1 0.2 0.5 1 2 3 4 56

4.8

4.84

4.88

4.92

4.96

5.04

5.08

5.12

5.16

5.2

REG_

VIN = 12 V

VIN = 24 V

Load Current (A)

Output Voltage (V)

0.001 0.01 0.02 0.05 0.1 0.2 0.5 1 2 3 456

4.95

4.96

4.97

4.98

4.99

5.01

5.02

5.03

5.04

5.05

REG_

VIN = 12 V

VIN = 24 V

Load Current (A)

Efficiency (%)

0.001 0.01 0.02 0.05 0.1 0.2 0.5 1 2 3 456

100

EFF_

VIN = 12 V

VIN = 24 V

Load Current (A)

Efficiency (%)

0 0.6 1.2 1.8 2.4 3 3.6 4.2 4.8 5.4 6

100

EFF_

VIN = 12 V

VIN = 24 V

www.ti.com

Performance Curves

SNVU579–September 2017

LM73605 / LM73606 EVM User’s Guide

7.3 LM73606EVM-5V-400K 6-A 400-kHz Board Curves

Figure 22. LM73606 5-V 400-kHz Efficiency in Auto Mode Figure 23. LM73606 5-V 400-kHz Efficiency in FPWM Mode

Figure 24. LM73606 5-V 400-kHz VOUT Regulation in Auto

Mode Figure 25. LM73606 5-V 400-kHz VOUT Regulation in FPWM

Mode

Figure 26. LM73606 5-V 400-kHz Load Transient VIN = 12 V,

IOUT = 10 mA to 6 A to 10 mA Figure 27. LM73605 5-V 400-kHz EVM Thermal Picture with

VIN = 12 V IOUT = 6 A

l TEXAS INSTRUMENTS -. J, 5W? M“ ”‘1 Nﬂ‘bMWLI-WVW'PDV | ‘ ‘ ”I‘d ”‘w J J \,, numlzhumiv W W ,x m“: Mind—L ﬂ ‘ ‘ag mm m mm k;amggszsz‘nz‘m am so m so W 2m in] «m sol: we ‘5 Fvewmnv m m

VOUT Ripple

VSW

(1 A/DIV)

Time (500 µs/DIV)

IINDUCTOR

(20 mV/DIV)

(5 V/DIV)

CISPR22 ClassA

CISPR22 ClassB

CISPR25 Class5

VOUT Ripple

VSW

(1 A/DIV)

Time (500 µs/DIV)

IINDUCTOR

(20 mV/DIV)

(5 V/DIV)

Peak Value

Average Value

LW_PK5

CB_PK5

LW_AV5

MW_PK5

MW_AV5

SW_PK5

SW_AV5

CB_AV5

Peak Value

Average Value

VHF1-PK5

VHF2-PK5

TVI-PK5

FM-PK5

VHF1-AV5

VHF2-AV5

TVI-AV5

FM-AV5

Performance Curves

www.ti.com

16 SNVU579–September 2017

Submit Documentation Feedback

LM73605 / LM73606 EVM User’s Guide

7.4 EMI Test Results

The following results were obtained in TI labs for reference only. The radiated EMI test was performed in a

3-meter standard lab. The input filter values used for this test is shown in Table 6. The input filter consists

of C-FLTs, L-IN and CBULK, located on the bottom side of the PCB. Note that the input filter components

are not mounted on the PCB by default.

Table 6. EMI Filter Component Values

Component C-FLTs L-IN CBULK

Value 4.7 µF ceramic capacitor 1 µH 10 µF electrolytic capacitor

Quantity 4 1 1

Figure 28. LM73605 400-kHz Board Conducted EMI Result

vs CISPR25 Limits, with IOUT = 4 A - Low Frequency

Figure 29. LM73605 400-kHz Board Conducted EMI Result

vs CISPR25 Limits, with IOUT = 4 A - High Frequency

Figure 30. LM73605 400-kHz Board Radiated EMI Result vs CISPR25 Limits, with IOUT = 4 A

STANDARD TERMS FOR EVALUATION MODULES

1. Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, and/or

documentation which may be provided together or separately (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance

with the terms set forth herein. User's acceptance of the EVM is expressly subject to the following terms.

1.1 EVMs are intended solely for product or software developers for use in a research and development setting to facilitate feasibility

evaluation, experimentation, or scientific analysis of TI semiconductors products. EVMs have no direct function and are not

finished products. EVMs shall not be directly or indirectly assembled as a part or subassembly in any finished product. For

clarification, any software or software tools provided with the EVM (“Software”) shall not be subject to the terms and conditions

set forth herein but rather shall be subject to the applicable terms that accompany such Software

1.2 EVMs are not intended for consumer or household use. EVMs may not be sold, sublicensed, leased, rented, loaned, assigned,

or otherwise distributed for commercial purposes by Users, in whole or in part, or used in any finished product or production

system.

2Limited Warranty and Related Remedies/Disclaimers:

2.1 These terms do not apply to Software. The warranty, if any, for Software is covered in the applicable Software License

Agreement.

2.2 TI warrants that the TI EVM will conform to TI's published specifications for ninety (90) days after the date TI delivers such EVM

to User. Notwithstanding the foregoing, TI shall not be liable for a nonconforming EVM if (a) the nonconformity was caused by

neglect, misuse or mistreatment by an entity other than TI, including improper installation or testing, or for any EVMs that have

been altered or modified in any way by an entity other than TI, (b) the nonconformity resulted from User's design, specifications

or instructions for such EVMs or improper system design, or (c) User has not paid on time. Testing and other quality control

techniques are used to the extent TI deems necessary. TI does not test all parameters of each EVM.

User's claims against TI under this Section 2 are void if User fails to notify TI of any apparent defects in the EVMs within ten (10)

business days after delivery, or of any hidden defects with ten (10) business days after the defect has been detected.

2.3 TI's sole liability shall be at its option to repair or replace EVMs that fail to conform to the warranty set forth above, or credit

User's account for such EVM. TI's liability under this warranty shall be limited to EVMs that are returned during the warranty

period to the address designated by TI and that are determined by TI not to conform to such warranty. If TI elects to repair or

replace such EVM, TI shall have a reasonable time to repair such EVM or provide replacements. Repaired EVMs shall be

warranted for the remainder of the original warranty period. Replaced EVMs shall be warranted for a new full ninety (90) day

warranty period.

3Regulatory Notices:

3.1 United States

3.1.1 Notice applicable to EVMs not FCC-Approved:

FCC NOTICE: This kit is designed to allow product developers to evaluate electronic components, circuitry, or software

associated with the kit to determine whether to incorporate such items in a finished product and software developers to write

software applications for use with the end product. This kit is not a finished product and when assembled may not be resold or

otherwise marketed unless all required FCC equipment authorizations are first obtained. Operation is subject to the condition

that this product not cause harmful interference to licensed radio stations and that this product accept harmful interference.

Unless the assembled kit is designed to operate under part 15, part 18 or part 95 of this chapter, the operator of the kit must

operate under the authority of an FCC license holder or must secure an experimental authorization under part 5 of this chapter.

3.1.2 For EVMs annotated as FCC – FEDERAL COMMUNICATIONS COMMISSION Part 15 Compliant:

CAUTION

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not

cause harmful interference, and (2) this device must accept any interference received, including interference that may cause

undesired operation.

Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to

operate the equipment.

FCC Interference Statement for Class A EVM devices

NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of

the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is

operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not

installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.

Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to

correct the interference at his own expense.

FCC Interference Statement for Class B EVM devices

NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of

the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential

installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance

with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference

will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which

can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more

of the following measures:

•Reorient or relocate the receiving antenna.

•Increase the separation between the equipment and receiver.

•Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

•Consult the dealer or an experienced radio/TV technician for help.

3.2 Canada

3.2.1 For EVMs issued with an Industry Canada Certificate of Conformance to RSS-210 or RSS-247

Concerning EVMs Including Radio Transmitters:

This device complies with Industry Canada license-exempt RSSs. Operation is subject to the following two conditions:

(1) this device may not cause interference, and (2) this device must accept any interference, including interference that may

cause undesired operation of the device.

Concernant les EVMs avec appareils radio:

Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation

est autorisée aux deux conditions suivantes: (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit

accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.

Concerning EVMs Including Detachable Antennas:

Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser)

gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna type

and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for

successful communication. This radio transmitter has been approved by Industry Canada to operate with the antenna types

listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indicated.

Antenna types not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited

for use with this device.

Concernant les EVMs avec antennes détachables

Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un type et

d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage

radioélectrique à l'intention des autres utilisateurs, il faut choisir le type d'antenne et son gain de sorte que la puissance isotrope

rayonnée équivalente (p.i.r.e.) ne dépasse pas l'intensité nécessaire à l'établissement d'une communication satisfaisante. Le

présent émetteur radio a été approuvé par Industrie Canada pour fonctionner avec les types d'antenne énumérés dans le

manuel d’usage et ayant un gain admissible maximal et l'impédance requise pour chaque type d'antenne. Les types d'antenne

non inclus dans cette liste, ou dont le gain est supérieur au gain maximal indiqué, sont strictement interdits pour l'exploitation de

l'émetteur

3.3 Japan

3.3.1 Notice for EVMs delivered in Japan: Please see http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_01.page 日本国内に

輸入される評価用キット、ボードについては、次のところをご覧ください。

http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_01.page

3.3.2 Notice for Users of EVMs Considered “Radio Frequency Products” in Japan: EVMs entering Japan may not be certified

by TI as conforming to Technical Regulations of Radio Law of Japan.

If User uses EVMs in Japan, not certified to Technical Regulations of Radio Law of Japan, User is required to follow the

instructions set forth by Radio Law of Japan, which includes, but is not limited to, the instructions below with respect to EVMs

(which for the avoidance of doubt are stated strictly for convenience and should be verified by User):

1. Use EVMs in a shielded room or any other test facility as defined in the notification #173 issued by Ministry of Internal

Affairs and Communications on March 28, 2006, based on Sub-section 1.1 of Article 6 of the Ministry’s Rule for

Enforcement of Radio Law of Japan,

2. Use EVMs only after User obtains the license of Test Radio Station as provided in Radio Law of Japan with respect to

EVMs, or

3. Use of EVMs only after User obtains the Technical Regulations Conformity Certification as provided in Radio Law of Japan

with respect to EVMs. Also, do not transfer EVMs, unless User gives the same notice above to the transferee. Please note

that if User does not follow the instructions above, User will be subject to penalties of Radio Law of Japan.

【無線電波を送信する製品の開発キットをお使いになる際の注意事項】開発キットの中には技術基準適合証明を受けて

いないものがあります。技術適合証明を受けていないもののご使用に際しては、電波法遵守のため、以下のいずれかの

措置を取っていただく必要がありますのでご注意ください。

1. 電波法施行規則第6条第1項第1号に基づく平成18年3月28日総務省告示第173号で定められた電波暗室等の試験設備でご使用

いただく。

2. 実験局の免許を取得後ご使用いただく。

3. 技術基準適合証明を取得後ご使用いただく。

なお、本製品は、上記の「ご使用にあたっての注意」を譲渡先、移転先に通知しない限り、譲渡、移転できないものとします。

上記を遵守頂けない場合は、電波法の罰則が適用される可能性があることをご留意ください。日本テキサス・イ

ンスツルメンツ株式会社

東京都新宿区西新宿６丁目２４番１号

西新宿三井ビル

3.3.3 Notice for EVMs for Power Line Communication: Please see http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page

電力線搬送波通信についての開発キットをお使いになる際の注意事項については、次のところをご覧ください。http:/

/www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page

3.4 European Union

3.4.1 For EVMs subject to EU Directive 2014/30/EU (Electromagnetic Compatibility Directive):

This is a class A product intended for use in environments other than domestic environments that are connected to a

low-voltage power-supply network that supplies buildings used for domestic purposes. In a domestic environment this

product may cause radio interference in which case the user may be required to take adequate measures.

4EVM Use Restrictions and Warnings:

4.1 EVMS ARE NOT FOR USE IN FUNCTIONAL SAFETY AND/OR SAFETY CRITICAL EVALUATIONS, INCLUDING BUT NOT

LIMITED TO EVALUATIONS OF LIFE SUPPORT APPLICATIONS.

4.2 User must read and apply the user guide and other available documentation provided by TI regarding the EVM prior to handling

or using the EVM, including without limitation any warning or restriction notices. The notices contain important safety information

related to, for example, temperatures and voltages.

4.3 Safety-Related Warnings and Restrictions:

4.3.1 User shall operate the EVM within TI’s recommended specifications and environmental considerations stated in the user

guide, other available documentation provided by TI, and any other applicable requirements and employ reasonable and

customary safeguards. Exceeding the specified performance ratings and specifications (including but not limited to input

and output voltage, current, power, and environmental ranges) for the EVM may cause personal injury or death, or

property damage. If there are questions concerning performance ratings and specifications, User should contact a TI

field representative prior to connecting interface electronics including input power and intended loads. Any loads applied

outside of the specified output range may also result in unintended and/or inaccurate operation and/or possible

permanent damage to the EVM and/or interface electronics. Please consult the EVM user guide prior to connecting any

load to the EVM output. If there is uncertainty as to the load specification, please contact a TI field representative.

During normal operation, even with the inputs and outputs kept within the specified allowable ranges, some circuit

components may have elevated case temperatures. These components include but are not limited to linear regulators,

switching transistors, pass transistors, current sense resistors, and heat sinks, which can be identified using the

information in the associated documentation. When working with the EVM, please be aware that the EVM may become

very warm.

4.3.2 EVMs are intended solely for use by technically qualified, professional electronics experts who are familiar with the

dangers and application risks associated with handling electrical mechanical components, systems, and subsystems.

User assumes all responsibility and liability for proper and safe handling and use of the EVM by User or its employees,

affiliates, contractors or designees. User assumes all responsibility and liability to ensure that any interfaces (electronic

and/or mechanical) between the EVM and any human body are designed with suitable isolation and means to safely

limit accessible leakage currents to minimize the risk of electrical shock hazard. User assumes all responsibility and

liability for any improper or unsafe handling or use of the EVM by User or its employees, affiliates, contractors or

designees.

4.4 User assumes all responsibility and liability to determine whether the EVM is subject to any applicable international, federal,

state, or local laws and regulations related to User’s handling and use of the EVM and, if applicable, User assumes all

responsibility and liability for compliance in all respects with such laws and regulations. User assumes all responsibility and

liability for proper disposal and recycling of the EVM consistent with all applicable international, federal, state, and local

requirements.

5. Accuracy of Information: To the extent TI provides information on the availability and function of EVMs, TI attempts to be as accurate

as possible. However, TI does not warrant the accuracy of EVM descriptions, EVM availability or other information on its websites as

accurate, complete, reliable, current, or error-free.

6. Disclaimers:

6.1 EXCEPT AS SET FORTH ABOVE, EVMS AND ANY MATERIALS PROVIDED WITH THE EVM (INCLUDING, BUT NOT

LIMITED TO, REFERENCE DESIGNS AND THE DESIGN OF THE EVM ITSELF) ARE PROVIDED "AS IS" AND "WITH ALL

FAULTS." TI DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, REGARDING SUCH ITEMS, INCLUDING BUT

NOT LIMITED TO ANY EPIDEMIC FAILURE WARRANTY OR IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS

FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF ANY THIRD PARTY PATENTS, COPYRIGHTS, TRADE

SECRETS OR OTHER INTELLECTUAL PROPERTY RIGHTS.

6.2 EXCEPT FOR THE LIMITED RIGHT TO USE THE EVM SET FORTH HEREIN, NOTHING IN THESE TERMS SHALL BE

CONSTRUED AS GRANTING OR CONFERRING ANY RIGHTS BY LICENSE, PATENT, OR ANY OTHER INDUSTRIAL OR

INTELLECTUAL PROPERTY RIGHT OF TI, ITS SUPPLIERS/LICENSORS OR ANY OTHER THIRD PARTY, TO USE THE

EVM IN ANY FINISHED END-USER OR READY-TO-USE FINAL PRODUCT, OR FOR ANY INVENTION, DISCOVERY OR

IMPROVEMENT, REGARDLESS OF WHEN MADE, CONCEIVED OR ACQUIRED.

7. USER'S INDEMNITY OBLIGATIONS AND REPRESENTATIONS. USER WILL DEFEND, INDEMNIFY AND HOLD TI, ITS

LICENSORS AND THEIR REPRESENTATIVES HARMLESS FROM AND AGAINST ANY AND ALL CLAIMS, DAMAGES, LOSSES,

EXPENSES, COSTS AND LIABILITIES (COLLECTIVELY, "CLAIMS") ARISING OUT OF OR IN CONNECTION WITH ANY

HANDLING OR USE OF THE EVM THAT IS NOT IN ACCORDANCE WITH THESE TERMS. THIS OBLIGATION SHALL APPLY

WHETHER CLAIMS ARISE UNDER STATUTE, REGULATION, OR THE LAW OF TORT, CONTRACT OR ANY OTHER LEGAL

THEORY, AND EVEN IF THE EVM FAILS TO PERFORM AS DESCRIBED OR EXPECTED.

8. Limitations on Damages and Liability:

8.1 General Limitations. IN NO EVENT SHALL TI BE LIABLE FOR ANY SPECIAL, COLLATERAL, INDIRECT, PUNITIVE,

INCIDENTAL, CONSEQUENTIAL, OR EXEMPLARY DAMAGES IN CONNECTION WITH OR ARISING OUT OF THESE

TERMS OR THE USE OF THE EVMS , REGARDLESS OF WHETHER TI HAS BEEN ADVISED OF THE POSSIBILITY OF

SUCH DAMAGES. EXCLUDED DAMAGES INCLUDE, BUT ARE NOT LIMITED TO, COST OF REMOVAL OR

REINSTALLATION, ANCILLARY COSTS TO THE PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, RETESTING,

OUTSIDE COMPUTER TIME, LABOR COSTS, LOSS OF GOODWILL, LOSS OF PROFITS, LOSS OF SAVINGS, LOSS OF

USE, LOSS OF DATA, OR BUSINESS INTERRUPTION. NO CLAIM, SUIT OR ACTION SHALL BE BROUGHT AGAINST TI

MORE THAN TWELVE (12) MONTHS AFTER THE EVENT THAT GAVE RISE TO THE CAUSE OF ACTION HAS

OCCURRED.

8.2 Specific Limitations. IN NO EVENT SHALL TI'S AGGREGATE LIABILITY FROM ANY USE OF AN EVM PROVIDED

HEREUNDER, INCLUDING FROM ANY WARRANTY, INDEMITY OR OTHER OBLIGATION ARISING OUT OF OR IN

CONNECTION WITH THESE TERMS, , EXCEED THE TOTAL AMOUNT PAID TO TI BY USER FOR THE PARTICULAR

EVM(S) AT ISSUE DURING THE PRIOR TWELVE (12) MONTHS WITH RESPECT TO WHICH LOSSES OR DAMAGES ARE

CLAIMED. THE EXISTENCE OF MORE THAN ONE CLAIM SHALL NOT ENLARGE OR EXTEND THIS LIMIT.

9. Return Policy. Except as otherwise provided, TI does not offer any refunds, returns, or exchanges. Furthermore, no return of EVM(s)

will be accepted if the package has been opened and no return of the EVM(s) will be accepted if they are damaged or otherwise not in

a resalable condition. If User feels it has been incorrectly charged for the EVM(s) it ordered or that delivery violates the applicable

order, User should contact TI. All refunds will be made in full within thirty (30) working days from the return of the components(s),

excluding any postage or packaging costs.

10. Governing Law: These terms and conditions shall be governed by and interpreted in accordance with the laws of the State of Texas,

without reference to conflict-of-laws principles. User agrees that non-exclusive jurisdiction for any dispute arising out of or relating to

these terms and conditions lies within courts located in the State of Texas and consents to venue in Dallas County, Texas.

Notwithstanding the foregoing, any judgment may be enforced in any United States or foreign court, and TI may seek injunctive relief

in any United States or foreign court.

Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265

IMPORTANT NOTICE FOR TI DESIGN INFORMATION AND RESOURCES

Texas Instruments Incorporated (‘TI”) technical, application or other design advice, services or information, including, but not limited to,

reference designs and materials relating to evaluation modules, (collectively, “TI Resources”) are intended to assist designers who are

developing applications that incorporate TI products; by downloading, accessing or using any particular TI Resource in any way, you

(individually or, if you are acting on behalf of a company, your company) agree to use it solely for this purpose and subject to the terms of

this Notice.

TI’s provision of TI Resources does not expand or otherwise alter TI’s applicable published warranties or warranty disclaimers for TI

products, and no additional obligations or liabilities arise from TI providing such TI Resources. TI reserves the right to make corrections,

enhancements, improvements and other changes to its TI Resources.

You understand and agree that you remain responsible for using your independent analysis, evaluation and judgment in designing your

applications and that you have full and exclusive responsibility to assure the safety of your applications and compliance of your applications

(and of all TI products used in or for your applications) with all applicable regulations, laws and other applicable requirements. You

represent that, with respect to your applications, you have all the necessary expertise to create and implement safeguards that (1)

anticipate dangerous consequences of failures, (2) monitor failures and their consequences, and (3) lessen the likelihood of failures that

might cause harm and take appropriate actions. You agree that prior to using or distributing any applications that include TI products, you

will thoroughly test such applications and the functionality of such TI products as used in such applications. TI has not conducted any

testing other than that specifically described in the published documentation for a particular TI Resource.

You are authorized to use, copy and modify any individual TI Resource only in connection with the development of applications that include

the TI product(s) identified in such TI Resource. NO OTHER LICENSE, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE TO

ANY OTHER TI INTELLECTUAL PROPERTY RIGHT, AND NO LICENSE TO ANY TECHNOLOGY OR INTELLECTUAL PROPERTY

RIGHT OF TI OR ANY THIRD PARTY IS GRANTED HEREIN, including but not limited to any patent right, copyright, mask work right, or

other intellectual property right relating to any combination, machine, or process in which TI products or services are used. Information

regarding or referencing third-party products or services does not constitute a license to use such products or services, or a warranty or

endorsement thereof. Use of TI Resources may require a license from a third party under the patents or other intellectual property of the

third party, or a license from TI under the patents or other intellectual property of TI.

TI RESOURCES ARE PROVIDED “AS IS” AND WITH ALL FAULTS. TI DISCLAIMS ALL OTHER WARRANTIES OR

REPRESENTATIONS, EXPRESS OR IMPLIED, REGARDING TI RESOURCES OR USE THEREOF, INCLUDING BUT NOT LIMITED TO

ACCURACY OR COMPLETENESS, TITLE, ANY EPIDEMIC FAILURE WARRANTY AND ANY IMPLIED WARRANTIES OF

MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT OF ANY THIRD PARTY INTELLECTUAL

PROPERTY RIGHTS.

TI SHALL NOT BE LIABLE FOR AND SHALL NOT DEFEND OR INDEMNIFY YOU AGAINST ANY CLAIM, INCLUDING BUT NOT

LIMITED TO ANY INFRINGEMENT CLAIM THAT RELATES TO OR IS BASED ON ANY COMBINATION OF PRODUCTS EVEN IF

DESCRIBED IN TI RESOURCES OR OTHERWISE. IN NO EVENT SHALL TI BE LIABLE FOR ANY ACTUAL, DIRECT, SPECIAL,

COLLATERAL, INDIRECT, PUNITIVE, INCIDENTAL, CONSEQUENTIAL OR EXEMPLARY DAMAGES IN CONNECTION WITH OR

ARISING OUT OF TI RESOURCES OR USE THEREOF, AND REGARDLESS OF WHETHER TI HAS BEEN ADVISED OF THE

POSSIBILITY OF SUCH DAMAGES.

You agree to fully indemnify TI and its representatives against any damages, costs, losses, and/or liabilities arising out of your non-

compliance with the terms and provisions of this Notice.

This Notice applies to TI Resources. Additional terms apply to the use and purchase of certain types of materials, TI products and services.

These include; without limitation, TI’s standard terms for semiconductor products http://www.ti.com/sc/docs/stdterms.htm), evaluation

modules, and samples (http://www.ti.com/sc/docs/sampterms.htm).

Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265

Texas Instruments 的 LM73605,73606 EVM User Guide 规格书

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