The SiC461EVB reference board, from Vishay, allows the user to evaluate the SiC461, microBUCK® IC regulators for their features and functionalities. It can also be a reference design for a user's application. The board is configured for 4.5 V to 60 V input. The output voltage is typically 5V, but can vary depending on exact board model. The operating range may be modified by changing components such as the inductor, feedback resistor, and ripple injection networks.
The SiC46x family of microBUCK regulators is a wide input voltage high efficiency synchronous buck regulator with integrated high-side and low-side power MOSFETs. Its power stage is capable of supplying up to 10 A continuous current at up to 2 MHz switching frequency. These regulators produce an adjustable output voltage down to 0.8 V from 4.5 V to 60 V input rail to accommodate a variety of applications, including computing, consumer electronics, telecom, and industrial.
SiC46x's architecture delivers ultrafast transient response with minimum output capacitance and tight ripple regulation at very light load. The device is stable with any type of output capacitor. The device also incorporates a power saving scheme that significantly increases light load efficiency. This board has UVLO capability on the input rail and a user programmable soft start.
Manufacturer | Vishay Siliconix |
---|---|
Category | AC/DC and DC/DC Conversion |
Sub-Category | DC/DC SMPS - Single Output |
Eval Board Part Number | SIC461EVB-ND |
Eval Board Supplier | Vishay Siliconix |
Eval Board |
Board not Stocked
|
Topology |
Step Down
|
Outputs and Type |
1 Non-Isolated
|
Voltage Out: Factory Set |
5 V
|
Current Out |
10 A
|
Voltage In |
4.5 ~ 60 V
|
Efficiency @ Conditions |
>94%, 36V in, 5V @ 5 ~ 10 A
>94%, 24V in, 5V @ 2.6 ~ 10 A >92%, 48V in, 5V @ 4 ~ 10 A |
Voltage Out Range |
0.8 ~ 55 V
|
Features |
Current Limit (Adj. or Fixed)
Light Load Mode Over Current Protection Over Voltage Protection Power Good Output Short Circuit Protection Shutdown, Enable, Standby Soft Start Thermal Protection Under Voltage Protection, Brown-Out |
Switching Frequency |
500 kHz
|
Standby Current [Typical] |
4 µA
|
Quiescent Current [Typical] |
235 µA
|
Component Count + Extras |
47 + 16
|
Internal Switch |
Yes
|
Design Author |
Vishay Siliconix
|
Application / Target Market |
Distributed Power Systems
Power: Industrial Power Servers Telecom White Goods |
Standby Current [Maximum] |
8 µA
|
Quiescent Current [Maximum] |
325 µA
|
Main I.C. Base Part |
SiC461
|
Date Created By Author | 2017-10 |
Date Added To Library | 2020-01 |