GENERAL DESCRIPTION
The ADP3153 is a highly efficient synchronous switching regulator controller and a linear regulator controller. The switching regulator controller is optimized for Pentium II and Deschutes Processor applications where 5 V is stepped down to a digitally controlled output voltage between 1.8 V and 3.5 V. Using a 5-bit DAC to read a voltage identification (VID) code directly from the processor, the ADP3153 uses a current mode constant offtime architecture to generate its precise output voltage.

FEATURES
    5-Bit Digitally Programmable 1.8 V to 3.5 V Output Voltage
    Dual N-Channel Synchronous Driver
    Total Output Accuracy 61% (08C to +708C)
    High Efficiency
    Current-Mode Operation
    Short Circuit Protection
    Power Good Output
    Overvoltage Protection Crowbar
    On-Board Linear Regulator Controller
    VRM 8.2 Compatible
    Narrow Body TSSOP 20-Lead Package

APPLICATIONS
    Desktop PC Power Supply for:
        Pentium II Processor
        Deschutes Processor
        Pentium Pro Processor
        Pentium Processor
        AMD–K6 Processor
    VRM Modules