ISL8033 查看數據表（PDF） - Intersil

零件编号

产品描述 (功能)

比赛名单

ISL8033

Dual 3A Low Quiescent Current High Efficiency Synchronous Buck Regulator

Intersil 

Block Diagram

ISL8033, ISL8033A

SOFT-

START

SHUTDOWN

EN1

BANDGAP 0.8V EAM P

27pF

390k

0 .3 p F

+

COMP

FB1

1.6k

PG1

SGND

VIN

1M

3pF

SLOPE

COMP

+

0.5V SCP

+

0.864V +

+

0.736V

O S C IL L A T O R

1ms

DELAY

THERMAL SHUTDOWN

SHUTDOWN

SSOTFAT -

S TRATR T

SHUTDOWN

27pF

390k

EN2

BANDGAP 0.8V EAM P

0.3pF

+

COMP

FB2

1.6k

3pF

SLOPE

COMP

+

0.5V SCP

+

0.864V +

PG2

SGND

V IN

+

0.736V

1M

1ms

DELAY

SHUTDOWN

PWM

LO G IC

CONTROLLER

P R O T E C T IO N

D R IV E R

+

CSA1

OCP

THRESHOLD

L O G IC

SHUTDOWN

PWM

L O G IC

CONTROLLER

P R O T E C T IO N

D R IV E R

+

CSA2

VIN

LX1

PGND

SYNC

ISET

VIN

LX2

PGND

3

FN6854.2

March 24, 2011

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