GENERAL DESCRIPTION
The ADP1051 is an advanced digital controller with PMBusTM interface targeting high density, high efficiency DCDC power conversion. This controller implements voltage mode control with high speed, input line feed-forward for enhanced transient and improved noise performance. The ADP1051 has 6 programmable PWM outputs capable of controlling most high efficiency power supply topologies with added control of synchronous rectification. The device includes adaptive dead-time compensation to improve the efficiency over the load range and programmable light load mode operation combined with low device power consumption to reduce system standby power losses.

FEATURES
    Versatile, digital voltage mode controller
    High speed, input voltage feed-forward control
    6 PWM logic outputs with 625ps resolution
    Switching frequency 50 kHz to 625 kHz
    Frequency synchronization master & slave
    Multiple energy saving modes
    Adaptive dead-time compensation for efficiency optimization
    Low device power consumption - typical 100 mW
    Direct Parallel operation
        • Accurate droop current share
        • Pre-bias start-up
        • Reverse current protection
        • Conditional over-voltage protection
    Extensive fault detection and protections
    Ultra compact package design 4*4mm 24-pin LFCSP
    PMBus Compliant
    Easy to use programming via Graphic User Interface (GUI)
    High reliability EEPROM for programming & data storage
    -40 °C ~ 125 °C operation temperature

APPLICATIONS
    High density isolated dc-to-dc power supplies Intermediate bus converters High availability parallel power systems
    Server, storage, industrial, networking, and communications infrastructure