ISL95870B View Datasheet(PDF) - Intersil

Part Name

Description

View to exact match

ISL95870B

PWM DC/DC Controller with VID Inputs for Portable GPU Core-Voltage Regulator

Intersil 

Block Diagram

VCC

EN

PGOOD

FB

SREF

POR

SOFT-START

CIRCUITRY

PGOOD

CIRCUITRY

INTERNAL

COMPENSATION

AMPLIFIER

+

OVERVOLTAGE/

UNDERVOLTAGE

DRIVER

DEAD-TIME

GENERATION

DRIVER

*SET 0

*SET 1

**SET2

*VID1

*VID0

GND

REFERENCE

VOLTAGE

CIRCUITRY

R4

MODULATOR

REMOTE SENSE

CIRCUITRY

Fs SELECTION

CIRCUITRY

OVERCURRENT

*ISL95870A, ISL95870B ONLY

RTN

FSEL

**ISL95870B ONLY

FIGURE 8. SIMPLIFIED FUNCTIONAL BLOCK DIAGRAM OF ISL95870, ISL95870A, ISL95870B

BOOT

UGATE

PHASE

PVCC

LGATE

PGND

VO

OCSET

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