Description

The ISL62882C is a multiphase PWM buck regulator for miroprocessor or graphics processor core power supply. The multiphase buck converter uses interleaved phases to reduce the total output voltage ripple with each phase carrying a portion of the total load current, providing better system performance, superior thermal management, lower component cost, reduced power dissipation, and smaller implementation area. The ISL62882C uses two integrated gate drivers to provide a complete solution. The PWM modulator is based on Intersils Robust Ripple Regulator (R3) technology™. Compared with traditional modulators, the R3™ modulator commands variable switching frequency during load transients, achieving faster transient response. With the same modulator, the switching frequency is reduced at light load, increasing the regulator efficiency.

Key Features

Programmable 1- or 2-Phase CPU or GPU Mode Operation

Precision Multiphase Core Voltage Regulation

0.5 System Accuracy Over-Temperature

Enhanced Load Line Accuracy

Microprocessor Voltage Identification Input

7-Bit VID Input, 0V to 1.500V in 12.5mV Steps

Supports VID Changes On-The-Fly

Supports Multiple Current Sensing Methods

Lossless Inductor DCR Current Sensing

Precision Resistor Current Sensing

Supports PSI# and DPRSLPVR modes

Superior Noise Immunity and Transient Response

Current Monitor and Thermal Monitor

Differential Remote Voltage Sensing

High Efficiency Across Entire Load Range

Two Integrated Gate Drivers

Excellent Dynamic Current Balance Between Phases

Split LGATE1 Drivers Increases Light Load Efficiency

FB2 Function Optimizes 1-Phase Mode Performance

Adaptive Body Diode Conduction Time Reduction

User-selectable Overshoot Reduction Function

Small Footprint 40 Ld 5x5 TQFN Packages

Pb-Free (RoHS Compliant)

Applications

Notebook Core Voltage Regulator

Notebook GPU Voltage Regulator