Datasheet Linear Technology LT3992 — Даташит

LT3992
Monolithic Dual Tracking
3A Step-Down Switching Regulator
Description Features Wide Input Range: – Operation from 3V to 60V
n Independent Supply, Shutdown, Soft-Start, UVLO,
Programmable Current Limit and Programmable
Power Good for Each 3A Regulator
n Die Temperature Monitor
n Adjustable/Synchronizable Fixed Frequency
Operation from 250kHz to 2MHz with Synchronized
Clock Output
n Independent Synchronized Switching Frequencies
Optimize Component Size
n Antiphase Switching n Outputs Can Be Paralleled
n Flexible Output Voltage Tracking
n Low Dropout: 95% Maximum Duty Cycle
n 5mm × 5mm QFN Package
n FMEA Compliant 38-Pin Exposed Pad TSSOP Package 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. n To optimize efficiency and component size, both converters have a programmable maximum current limit and are
synchronized to either a common external clock input, or …