DESCRIPTION

The LT®3992 is a dual current mode PWM step-down DC/DC converter with two internal 4.6A switches. Independent input voltage, shutdown, feedback, soft-start, UVLO current limit and comparator pins for each channel simplify complex power supply tracking and sequencing requirements.

FeaTures

■ Wide Input Range:
– Operation from 3V to 60V
■ Independent Supply, Shutdown, Soft-Start, UVLO,
Programmable Current Limit and Programmable
Power Good for Each 3A Regulator
■ Die Temperature Monitor
■ Adjustable/Synchronizable Fixed Frequency
Operation from 250kHz to 2MHz with Synchronized
Clock Output
■ Independent Synchronized Switching Frequencies
Optimize Component Size
■ Antiphase Switching
■ Outputs Can Be Paralleled
■ Flexible Output Voltage Tracking
■ Low Dropout: 95% Maximum Duty Cycle
■ 5mm × 5mm QFN Package
■ FMEA Compliant 38-Pin Exposed Pad TSSOP Package

APPLICATIONS

■ Automotive Supplies
■ Distributed Supply Regulation