ISL6520 View Datasheet(PDF) - Intersil

Part Name

Description

MFG CO.

ISL6520

Single Synchronous Buck Pulse-Width Modulation (PWM) Controller

Intersil 

Pinouts

ISL6520

(8 LD SOIC)

TOP VIEW

BOOT 1

UGATE 2

GND 3

LGATE 4

8 PHASE

7 COMP/SD

6 FB

5 VCC

ISL6520

ISL6520

(16 LD QFN)

TOP VIEW

16 15 14 13

BOOT 1

12 NC

UGATE 2

GND 3

GND

11 COMP/OCSET

10 NC

NC 4

9 FB

5678

Block Diagram

SAMPLE

AND

HOLD

+

-

OC

COMPARATOR

VCC

POR AND

SOFTSTART

+

0.8V

-

FB

COMP/OCSET

20μA

Typical Application

ERROR

AMP

+

-

PWM

COMPARATOR

+

-

GATE

CONTROL

PWM LOGIC VCC

OSCILLATOR

FIXED 300kHz

VCC

GND

BOOT

UGATE

PHASE

LGATE

CDCPL

CBULK

ROCSET

RF

CF

VCC

5

BOOT

1

COMP/OCSET

7

ISL6520

UGATE

2

8 PHASE

CI

63

4 LGATE

FB

GND

DBOOT

CHF

CBOOT

LOUT

COUT

+VO

ROFFSET

RS

2

FN9009.6

April 3, 2007

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