Non-isolated 48V-to-1V Heterogeneous Integrated Voltage Converters for High Performance Computing in Data Centers

This paper discusses and compares various topologies of non-isolated 48/1V heterogeneous integrated voltage converters that are potential solutions for future power conversion in data centers. Recent topologies can be divided into three categories: buck and modified buck topologies, switched-capacitor based hybrid topologies, and merged two-stage hybrid topologies. Features, design trade-offs, and outlooks of each topology are discussed.