L6917 Datasheet - STMicroelectronics

DESCRIPTION
The device is a power supply controller specifically designed to provide a high performance DC/DC conversion for high current microprocessors. The device implements a dual-phase step-down controller with a 180° phase-shift between each phase. A precise 5-bit digital to analog converter (DAC) allows adjusting the output voltage from 1.100V to 1.850V with 25mV binary steps.

■2 PHASE OPERATION WITH SYNCRHONOUS RECTIFIER CONTROL
■ULTRA FAST LOAD TRANSIENT RESPONSE
■INTEGRATED HIGH CURRENT GATE DRIVERS: UP TO 2A GATE CURRENT
■TTL-COMPATIBLE 5 BIT PROGRAMMABLE OUTPUT COMPLIANT WITH VRM 9.0
■0.8% INTERNAL REFERENCE ACCURACY
■10% ACTIVE CURRENT SHARING ACCURACY
■DIGITAL 2048 STEP SOFT-START
■OVERVOLTAGE PROTECTION
■OVERCURRENT PROTECTION REALIZED USING THE LOWER MOSFET'S RdsONOR A SENSE RESISTOR
■300 kHz INTERNAL OSCILLATOR
■OSCILLATOR EXTERNALLY ADJUSTABLE UP TO 600kHz
■POWER GOOD OUTPUT AND INHIBIT FUNCTION
■REMOTE SENSE BUFFER
■PACKAGE: SO-28

APPLICATIONS
■POWER SUPPLY FOR SERVERS AND WORKSTATIONS
■POWER SUPPLY FOR HIGH CURRENT MICROPROCESSORS
■DISTRIBUTED DC-DC CONVERTERS