SP34063A datasheet(1/9 Pages) EXAR

Part #	SP34063A

Description	1.5A Buck/Boost/Inverting DC-DC Regulator

PDF	9 Pages

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Manufacturer	EXAR [Exar Corporation]

Direct Link	http://www.exar.com

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S

SP

P3

34

40

06

63

3A

A

1

1..5

5A

A B

Bu

uc

ck

k/

/B

Bo

oo

os

stt/

/IIn

nv

ve

errttiin

ng

g D

DC

C--D

DC

C R

Re

eg

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ulla

atto

orr

February 2011

Rev. 2.1.0

Exar Corporation

www.exar.com

48720 Kato Road, Fremont CA 94538, USA

Tel. +1 510 668-7000 – Fax. +1 510 668-7001

GENERAL DESCRIPTION

The SP34063A is a monolithic switching

regulator control circuit containing the primary

functions required for DC-DC converters.

This device consists of an internal temperature

compensated reference, voltage comparator,

controlled duty cycle oscillator with active

current limit circuit, driver and high current

output switch. This device was specifically

designed to be used in buck, boost, and

Voltage-Inverting applications with a minimum

number of external components.

The SP34063A is available in the 8 pin NSOIC

package.

APPLICATIONS

• Battery Charger Circuit

• NICs/Switches/Hubs

• ADSL Modems

• Negative Voltage Power Supply

FEATURES

• Supply Voltage: 3V - 36V

• Current Limiting

• Output Switch Current to 1.5A

• Adjustable Output Voltage

• Operation frequency up to 180KHz

• Low Quiescent Current

• Precision 2% Reference

• Available in 8 pin NSOIC Package

TYPICAL APPLICATION DIAGRAM

Fig. 1: SP34063A Application Diagram

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SP34063A Datasheet(PDF) 1 Page - Exar Corporation

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