ISL8088(2009) データシートの表示（PDF） - Intersil

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コンポーネント説明

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ISL8088
(Rev.:2009)

Dual 800mA Low Quiescent Current 2.25MHz High Efficiency Synchronous Buck Regulator

Intersil 

Block Diagram

ISL8088

SOFT-

SHUTDOWN START

EN1

+

BANDGAP 0.6V + EAMP

-

FB1

1.6k

3pF

SLOPE

COMP

+

+

0.3V SCP

-

27pF

200k

+

COMP

-

PG

SGND

VIN

1M

+

0.552V -

PG1

1ms

DELAY

OSCILLATOR

SHUTDOWN

PWM/PFM

LOGIC

CONTROLLER

PROTECTION

DRIVER

+

OCP

-

+

SKIP

-

+

CSA1

-

0.59V

0.09V

ZERO-CROSS

SENSING

SOFT-

SHUTDOWN START

EN2

BANDGAP 0.6V EAMP

-

27pF

200k

+

COMP

-

FB2

1.6k

3pF

SLOPE

COMP

+

-

0.3V

SCP

+

+

0.552V -

PG2

THERMAL

SHUTDOWN

SHUTDOWN

SHUTDOWN

PWM/PFM

LOGIC

CONTROLLER

PROTECTION

DRIVER

+

OCP

-

+

CSA2

-

0.59V

+

SKIP

-

0.09V

ZERO-CROSS

SENSING

VIN

LX1

PGND

SYNC

VIN

LX2

PGND

13

FN6858.0

September 21, 2009

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