VRM9.0 PROGRAMMABLE, MULTI-PHASE,

HIGH PERFORMANCE PWM CONTROLLER

SC1146

© 2000 SEMTECH CORP.

652 MITCHELL ROAD NEWBURY PARK CA 91320

July 25, 2000

10

The SC1146 is patent pending

OUTLINE DRAWING - SO-24

JEDEC MS-013AD

B17104B

An evaluation board is available which may be ordered directly from the factory. SC1146/1405EVB is a DC/DC

converter utilizing the SC1146 four-phase controller in a high current synchronous application. The evaluation

board is intended as a guideline for board design, layout and to assess key performance parameters, such as tran-

sient response, thermal stress management and input and output ripple considerations. The SC1146EVB includes

a DIP switch for mode/voltage selection as well as qualified selection of components for the SC1146 operation.

The SC1144EVB user manual contains useful general applications information applicable to SC1146 and may be

accessed from our website at www.semtech.com.

ECN00-1215