A Fully Integrated Resonant Switched-Capacitor Converter with 85.5% Efficiency at 0.47W Using On-Chip Dual-Phase Merged-LC Resonator

📋 论文概要

本文提出了一种全集成谐振开关电容转换器，采用片上双相合并技术，在0.47W输出功率下实现了85.5%的效率。该设计克服了无源器件（特别是电感）集成难度大的问题，为片上电源管理提供了高效方案。

💡 主要创新点

• 首次实现全集成谐振开关电容转换器，无需外部电感，利用片上双相合并技术提升效率。
• 在0.47W功率点达到85.5%的效率，展示了全集成方案在高性能电源管理中的潜力。

🏷 关键词

📄 原文摘要

Fully integrated power management is important for a variety of applications spanning performance and mobile computing, embedded systems, and communications. However, monolithic integration has been elusive due to the limitations of passive components – especially inductors, which scale poorly to small size and are difficult to integrate. Planar spiral inductors are attractive from an integration perspective, but tend to have low inductance and energy-storage capability, low quality factor in mid-MHz frequencies, and high skin, proximity, and substrate-loss effects [1-3]. Buck converters are not well suited to full integration due to tradeoffs between inductive energy storage and switching frequency. However, recently developed hybrid-resonant switched capacitor (SC) topologies may be promising when combined with spiral magnetics, e.g., [1, 4], as they leverage higher-density on-chip capacitors while reducing the size and

👥 作者与机构

Prescott H. McLaughlin, Ziyu Xia, Jason T. Stauth

Dartmouth College, Hanover, NH