L6917B Datasheet (STMicroelectronics) - 5-BIT PROGRAMMABLE DUAL-PHASE CONTROLLER

L6917B, 5-BIT PROGRAMMABLE DUAL-PHASE CONTROLLER

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

L6917B 5 BIT PROGRAMMABLE DUAL-PHASE CONTROLLER s 2 PHASE OPERATION WITH SYNCRHONOUS RECTIFIER CONTROL s ULTRA FAST LOAD TRANSIENT RESPONSE s INTEGRATED HIGH CURRENT GATE DRIVERS: UP TO 2A GATE CURRENT s TTL-COMPATIBLE 5 BIT PROGRAMMABLE ) OUTPUT COMPLIANT WITH VRM 9.0 t(s s 0.8% INTERNAL REFERENCE ACCURACY c s 10% ACTIVE CURRENT SHARING u ACCURACY d s DIGITAL 2048 STEP SOFT-START ro ) s OVERVOLTAGE PROTECTION P t(s s OVERCURRENT PROTECTION REALIZED USING THE LOWER MOSFET'S RdsON OR A te c