Vishay Siliconix

SiP12201

New Product

Document Number: 73541

S-52083–Rev. A, 10-Oct-05

www.vishay.com

1

Synchronous Step Down Controller

FEATURES

• 4.2 V to 26.0 V Input Voltage Range

• Adjustable Output Voltage - 0.6 to 5.5 V

• For Converter loads up to 10 A

• High efficiency - 93%

• Uses N-channel MOSFETs

• 500 kHz operation

• Internal Soft Start

• Shutdown pin

• Output Current Limit

• Minimum External Components

• MLP33-10 Package

APPLICATIONS

• Distributed Power

• Desktop & Notebook Computers

• Battery Operated Equipment

• Point of Load Regulation

• DSP Cores

• Automotive Entertainment

DESCRIPTION

SiP12201 is a synchronous step down controller

designed for use in dc-dc converter circuits requiring

output currents as high as 10 amperes. SiP12201 is

designed to require a minimum number of external

components, simplifying design and layout. It accepts

input voltages from 4.2 V to 26.0 V, providing an

adjustable output with voltage ranging from 0.6 V to 5 V.

SiP12201 includes an combination Compensation/

Shutdown pin. Protection features include undervolt-

age lockout, output current limit, and thermal shut-

down.

SiP12201 is available in a lead (Pb)-free MLP33-10

package and is specified to operate over the range of

- 40 °C to 85 °C.

TYPICAL APPLICATION CIRCUIT

Compensation

Shutdown

GND

V

IN

V

OUT

PGND

AGND

V

COMP/SD

FB

DH

LX

DL

IN

VIN

VL

AGND

PGND