ISL8013 데이터 시트보기 (PDF) - Renesas Electronics

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ISL8013

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

Renesas Electronics 

ISL8013

Block Diagram

SYNCH

SOSFoTft-

SHUTDOWN START

-

EN

BANDGAP 0.8V EAMP

-

27pF

390k

+ OSCILLATOR

COMP

-

VFB

3pF

+

SHUTDOWN

PWM/PFM

LOGIC

CONTROLLER

PROTECTION

DRIVER

6k

SLSOloPpEe

COMP

PG

SGND

+

0.736V -

1ms

DELAY

+

OCP

-

+

CSA

-

1.4V

+

SKIP-

0.5V

ZERO-CROSS

SENSING

-

0.2V

SCP

+

FIGURE 2. FUNCTIONAL BLOCK DIAGRAM

VIN

LX

PGND

FN6309 Rev 3.00

November 23, 2009

Page 4 of 18

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