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    Point-of-Load (POL) and Multi-Phase Converters

    D03.12 - A Quad-Inductor Hybrid Dickson Converter with Enhanced Current-Driving Capability and Minimized Inductor Losses for 48V Point-of-Load Systems

    Thursday, March 26, 2026
    12:00 PM - 1:45 PM CT
    Location: Poster 3
    This work introduces a novel quad-inductor hybrid Dickson (QIHD) converter for 48V-to-point-of-load data center voltage regulator modules (VRMs). By interleaving four inductors at the output, the proposed QIHD converter has significantly lower switch and inductor conduction losses for better power efficiency. This further enhances the current-driving capability and the power density of the proposed converter to deliver an output current up to 50A for an input voltage range of 24V - 60V and output voltage range of 0.8V - 2V. In the QIHD converter, the switch on-time is increased, and all flying capacitors are self-balanced during converter operation. Converter prototype measurement results show that the proposed QIHD converter achieves 93.1% peak efficiency at 48V-to-2V/15A conversion and 250kHz frequency, and provides the power density of 990W/in3.