GENERAL DESCRIPTION
The ADP3163 is a highly efficient multiphase synchronous buck switching regulator controller optimized for converting a 5 V or 12 V main supply into the core supply voltage required by high performance Intel processors.
   
FEATURES
    ADOPT™ Optimal Positioning Technology for Superior
        Load Transient Response and Fewest Output
        Capacitors
    Complies with VRM 9.0 and Intel VR Down Guideline
        with Lowest System Cost
    Digitally Selectable 2- or 3-Phase Operation
        at up to 500 kHz per Phase
    Quad Logic-level PWM Outputs for Interface to
        External High-Power Drivers
    Active Current Balancing between All Output Phases
    Accurate Multiple VRM Module Current Sharing
    5-Bit Digitally Programmable 1.1 V to 1.85 V Output
    Total Output Accuracy ±0.8% Over Temperature
    Current-Mode Operation
    Short Circuit Protection
    Enhanced Power Good Output Detects Open Outputs in
        Multi-VRM Power Systems
    Overvoltage Protection Crowbar Protects Microprocessors
        with No Additional External Components
   
APPLICATIONS
    Desktop PC Power Supplies for:
        Intel Pentium® 4 Processors
        AMD Athlon Processors
        VRM Modules