ISL8013A 查看數據表（PDF） - Renesas Electronics

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ISL8013A

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

Renesas Electronics 

ISL8013A

Typical Application

INPUT 2.8V TO 5.5V

C1

2 x 22µF

R1

100k

VIN

LX

VDD

PGND

ISL8013A

EN

VFB

PG

L

1.5µH

OUTPUT

1.8V

C2

2 x 22µF

R2

124k

C3

47pF

10R0k3

SYNCH

SGND

Block Diagram

FIGURE 1. TYPICAL APPLICATION DIAGRAM

SYNCH

SOSFoTft-

START

SHUTDOWN

-

EN

BANDGAP 0.8V

EAMP

-

3pF

VFB

27pF

390k

OSCILLATOR

+

COMP

-

+

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

FN7526 Rev 2.00

November 17, 2014

Page 3 of 16

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