ISL8013IRZ 데이터 시트보기 (PDF) - Intersil

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ISL8013IRZ

3A Low Quiescent Current 1MHz High Efficiency Synchronous Buck Regulator

Intersil 

ISL8013

Block Diagram

SYNCH

SSOoFfTt

START

SHUTDOWN

-

EN

BANDGAP 0.8V

EAMP

-

3pF

VFB

27pF

390k

OSCILLATOR

+

COMP

-

+

SHUTDOWN

PWM/PFM

LOGIC

CONTROLLER

PROTECTION

DRIVER

6k

PG

SGND

-

0.864V

+

+

0.736V -

SLSOloPpEe

COMP

1ms

DELAY

+

OCP

-

+

CSA

-

1.4V

+

SKIP

-

0.5V

ZERO-CROSS

SENSING

0.2V

-

SCP

+

FIGURE 2. FUNCTIONAL BLOCK DIAGRAM

VIN

LX

PGND

3

FN6309.1

December 27, 2007

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