Summary
The TPS40090EVM−001 multi-phase dc-to-dc converter utilizes the TPS40090 multi-phase controller and UCC27222 predictive gate driver to step down a 12-V input to 1.5V @ 100 A at 420 kHz.
The TPS40090 provides fixed-frequency, peak current-mode control with forced-phase current balancing. Phase currents are sensed by the voltage drop across the DC resistance (DCR) of inductors. Other features include a single voltage operation, true differential output voltage sense, user programmable current limit, capacitor-programmable soft-start and a power good indicator. Device operation is specified in the TPS40090 datasheet.
The TPS40090 provides fixed-frequency, peak current-mode control with forced-phase current balancing. Phase currents are sensed by the voltage drop across the DC resistance (DCR) of inductors. Other features include a single voltage operation, true differential output voltage sense, user programmable current limit, capacitor-programmable soft-start and a power good indicator. Device operation is specified in the TPS40090 datasheet.
Specifications
| Manufacturer | Texas Instruments |
|---|---|
| Category | AC/DC and DC/DC Conversion |
| Sub-Category | DC/DC SMPS - Single Output |
| Eval Board Part Number | 296-20593-ND |
| Eval Board Supplier | Texas Instruments |
| Eval Board |
Normally In Stock
|
| Topology |
Step Down
|
| Outputs and Type |
1 Non-Isolated
|
| Voltage Out: Factory Set |
1.5 V
|
| Current Out |
100 A
|
| Voltage In |
10.5 ~ 14.5 V
|
| Efficiency @ Conditions |
>86%, 12V in, 1.5V @ 10 ~ 100 A
|
| Voltage Out Range | |
| Features |
Current Limit (Adj. or Fixed)
Power Good Output Soft Start |
| Switching Frequency |
415 kHz
|
| Standby Current [Typical] |
2 µA
|
| Quiescent Current [Typical] |
4 mA
|
| Component Count + Extras |
136 + 14
|
| Internal Switch |
No
|
| Design Author |
Texas Instruments
|
| Application / Target Market |
Computers
|
| Standby Current [Maximum] |
10 µA
|
| Quiescent Current [Maximum] |
6 mA
|
| Main I.C. Base Part |
TPS40090
|
| Date Created By Author | |
| Date Added To Library | 2011-03 |
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