DESCRIPTION

The US3021M controller IC is specifically designed to meet Intel specification for next generation microprocessor applications requiring multiple on board regulators.

FEATURES

■ Provides Single Chip Solution for Vcore,

GTL+ ,AGP Bus, and 1.8V

■ Automatic Voltage Selection for AGP slot

Vddq supply

■ Linear regulator controller on board for 1.8V

■ Designed to meet Intel Latest VRM specification

for next generation micrprocessors

■ On board DAC programs the output voltage

from 1.3V to 3.5V

■ Linear regulator controller on board for 1.5V

GTL+ supply

■ Loss less Short Circuit Protection for all

outputs

■ Synchronous operation allows maximum

efficiency

■ Patented architecture allows fixed frequency

operation as well as 100 duty cycle during

dynamic load

■ Minimum part count

■ Soft Start

■ High current totem pole driver for direct

driving of the external Power MOSFET

■ Power Good function Monitors all Outputs

■ OVP Circuitry Protects the Switcher Output

and generates a Fault output

APPLICATIONS

■ Total Power Soloution for Next Generation Intel

Processor application