ISL8016 データシートの表示（PDF） - Renesas Electronics

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ISL8016

6A Low Quiescent Current High Efficiency Synchronous Buck Regulator

Renesas Electronics 

ISL8016

Block Diagram

SS

SHUTDOWN

SSOoFfTt

START

COMP

55pF

168k

EN

VSET

BANDGAP VREF

EAMP

-

3pF

+

VFB

6k

0.8V -

SLSOloPpEe

COMP

+

OV

-

0.85*VREF

+

UV

PG

SGND

1ms

DELAY

0.1V

-

SCP

+

FS SYNCIN

SYNCOUT

SHUTDOWN

250µA

VDD

+

COMP

-

OSCILLATOR

PWM/PFM

LOGIC

CONTROLLER

PROTECTION

HS DRIVER

+

OCP

-

+

SKIP

-

+

CSA

-

ISET

THRESHOLD

NEG CURRENT

SENSING

ZERO-CROSS

SENSING

SHUTDOWN

VIN

LS

DRIVER

P

PHASE

N

PGND

ISET

100

FIGURE 4. FUNCTIONAL BLOCK DIAGRAM

FN7616 Rev 1.00

May 5, 2011

Page 6 of 22

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