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