ISL62881 View Datasheet(PDF) - Intersil

Part Name

Description

Manufacturer

ISL62881

Single-Phase PWM Regulator for IMVP-6.5™ Mobile CPUs and GPUs

Intersil 

ISL62881, ISL62881B

Gate Driver Timing Diagram

PWM

UGATE

tLGFUGR

tRU

tFU

1V

LGATE

1V

tFL

tRL

tUGFLGR

Simplified Application Circuits

V+5 V+5 VIN

R BIAS

VDD VCCP VIN

RBIAS

PGOOD

CLK_EN#

VID<0:6>

DPRSLPVR

VR_ON

RDROOP

PGOOD

CLK_EN#

VIDS

DPRSLPVR

VR_ON

VW

ISL62881

RFSET

BOOT

UGATE

COMP

FB

PHASE

LGATE

VSSP

VSEN

ISUM+

V IN

L

VO

RSUM

VCCSENSE

V S S SENSE

R IMON

IM O N

RTN

RIS

CIS

IMON

ISUM-

(BOTTOM PAD)

VSS

RN

CN °C

RI

FIGURE 1. ISL62881 TYPICAL APPLICATION CIRCUIT USING DCR SENSING

8

FN6924.1

February 25, 2010

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