L6911ETR Datasheet PDF - ST Microelectronics

●Description

●The device is a power supply controller specifically designed to provide a high performance DC/DC conversion for high current

●microprocessors. A precise 5 bit digital to analog converter (DAC) allows to adjust the output voltage from 1.050 to 1.825 with 25mV binary steps.

●Features

●■ Operating supply IC voltage from 5V to 12V buses

●■ Up to 1.3A gate current capability

●■ TTL-compatible 5 bit programmable output compliant with VRM 8.5 : 1.050V to 1.825V with 0.025V binary steps

●■ Voltage mode PWM control

●■ Excellent output accuracy: ±1% over line and temperature variations

●■ Very fast load transient response: from 0% to 100% Duty Cycle

●■ Power good output voltage

●■ Overvoltage protection and monitor

●■ Overcurrent protection realized using the upper MOSFET"s Rds(ON)

●■ 200kHz internal oscillator

●■ Oscillator externally adjustable from 50kHz to 1MHz

●■ Soft start and inhibit functions

●Applications

●■ Power supply for advanced microprocessor core

●■ Distributed power supply