GENERAL DESCRIPTION

The ADP3154 is a highly efficient synchronous buck switching regulator controller optimized for converting the 5 V main supply into the core supply voltage required by the Pentium III and other high performance processors.

FEATURES

Active Voltage Positioning with Gain and Offset

Adjustment

Optimal Compensation for Superior Load Transient

Response

VRM 8.2, VRM 8.3 and VRM 8.4 Compliant

5-Bit Digitally Programmable 1.3 V to 3.5 V Output

Dual N-Channel Synchronous Driver

Onboard Linear Regulator Controller

Total Output Accuracy 61 Over Temperature

High Efficiency, Current-Mode Operation

Short Circuit Protection

Overvoltage Protection Crowbar Protects

Microprocessors with No Additional External

Components

Power Good Output

TSSOP-20 Package

APPLICATIONS

Desktop PC Power Supplies for:

Pentium II and Pentium III Processor Families

AMD-K6 Processors

VRM Modules