ISL8014 View Datasheet(PDF) - Renesas Electronics

Part Name

Description

View to exact match

ISL8014

4A Low Quiescent Current 1MHz High Efficiency Synchronous Buck Regulator

Renesas Electronics 

ISL8014

Typical Application

INPUT 2.7V TO 5.5V

C1

2 x 22µF

R1

100k

VIN

LX

VDD

PGND

ISL8014

L

1.5µH

OUTPUT

1.8V

C2

2 x 22µF

R2

124k

C3

47pF

PG

VFB

R3

EN

100k

SYNCH

SGND

FIGURE 1. TYPICAL APPLICATION DIAGRAM

Block Diagram

SYNCH

SOSoFfTt

SHUTDOWNSTART

-

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

FN6576 Rev 4.00

November 23, 2009

Page 3 of 17

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