Vishay - 4.5V to 18V Input 20 A microBRICK™ DC/DC Regulator Module

Vishay – 4.5V to 18V Input 20 A microBRICK™ DC/DC Regulator Module

Description

The SiC931 is a synchronous buck regulator module withintegrated power MOSFETs and inductor. Its power stage is capable of supplying 20A continuous current at up to 2 MHz switching frequency. This regulator produces an adjustable output voltage down to 0.6 V from 4.5 V to 18 V input rail to accommodate a variety of applications, including computing, consumer electronics, telecom, and industrial. SiC931’s architecture supports ultrafast transient response with minimum output capacitance and tight ripple regulation at very light load. The device is internally compensated and no external ESR network is required for loop stability purposes. The device also incorporates a power saving scheme that significantly increases light load efficiency. The regulator integrates a full protection feature set, including output over voltage protection (OVP), cycle by cycle over current protection (OCP), short circuit protection (SCP) and thermal shutdown (OTP). It also has UVLO and a user programmable soft start. The SiC931 is available in lead (Pb)-free power enhanced PowerPAK® MLP60-A6 package in 10.6 mm x 6.5 mm x3 mm dimensions.

Applications

5 V and 12 V input rail POLs
Desktop, notebooks, server, and industrial computing
Industrial and automation
consumer electronics

Features

Versatile
- Operation from 4.5 V to 18 V input voltage
- Adjustable output voltage down to 0.6 V
- Output voltage tracking and sequencing withpre-bias start up
- ± 1 % output voltage accuracy from -40 °C to +125 °C
Highly efficient
- 95 % peak efficiency
- 1 μA supply current at shutdown
- 50 μA operating current, not switching
Highly configurable
- Four programmable switching frequencies available: 600 kHz, 1 MHz, 1.5 MHz, and 2 MHz
- Adjustable soft start and adjustable current limit
- Programmable modes of operation: forced continuousconduction or power save mode
Robust and reliable
- Cycle-by-cycle current limit
- Output overvoltage protection
- Output undervoltage / short circuit protection with autoretry
- Power good flag and over temperature protection
High power density
- Integration of high current output inductor- 10.6 mm x 6.5 mm x 3 mm low profile MLP package
- Ease of use- Minimum peripheral components
- All ceramic capacitors for input and output