SiC437, SiC438 is a family of synchronous buck regulators with integrated high side and low side power MOSFETs from Vishay Siliconix, capable of supplying up to 12 A continuous current at 1 MHz switching frequency. This regulator produces an adjustable output voltage down to 0.6 V from 3 V to 24 V input rail to accommodate a variety of applications, including computing, consumer electronics, telecom, and industrial.
This document is a User's Manual for the SiC437 and SiC438 high voltage synchronous buck regulator reference board. It details the features of the SiC43x series, which includes integrated high-side and low-side power MOSFETs capable of supplying up to 12 A continuous current. The regulators support adjustable output voltages from 3 V to 24 V input and offer various protection features such as OVP, OCP, SCP, and OTP. This manual is written in Chinese.
| Input Voltage Range | 3 V to 24 V |
|---|---|
| Output Voltage Range | 0.6 V to adjustable |
| Maximum Continuous Current (SiC437) | 12 A |
| Maximum Continuous Current (SiC438) | 8 A |
| Switching Frequency | 300 kHz to 1 MHz |
| Peak Efficiency | 97 % |
| Supply Current (Shutdown) | 1 μA |
| Supply Current (Operating) | 50 μA |
| Package Type | MLP44-24L |
The default setup for the output voltage jumper is 5.0 V.
The device is enabled when the J9 jumper pins are left open and disabled when the J9 jumper pins are shorted.
The regulator includes output over voltage protection (OVP), cycle by cycle over current protection (OCP), short circuit protection (SCP), and thermal shutdown (OTP).