ISL6244 데이터 시트보기 (PDF) - Intersil

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ISL6244

Multi-Phase PWM Controller

Intersil 

ISL6244

Lparasitic

Vbattery

+5V

RADJ1

ROFS

+5V

CBP

OFS

VCC

CBP

RADJ2

VFF

PWM

VCC

BOOT

ISL6207

UGATE

PWM

PHASE

CBOOT

COMP

CC

RC

ISL6244

FS

FB

RFS

RFB

LGATE

GND

VDIFF

IOUT

ISEN

VSEN

RISEN(n) (close to controller)

(close to LGATE if thermistor is used)

RGND

GND

USE INDIVIDUAL METAL RUNS

FOR EACH CHANNEL TO HELP

ISOLATE OUTPUT STAGES

CIN

LO1

PHASE

VOUT

COUT

KEY

ISLAND ON POWER PLANE LAYER

ISLAND ON CIRCUIT PLANE LAYER

VIA CONNECTION TO GROUND PLANE

FIGURE 32. PRINTED CIRCUIT BOARD POWER PLANES AND ISLANDS

24

FN9106.3

December 28, 2004

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