Abstract
There is an increasing need for power management systems that can be fully integrated in silicon to reduce cost and form factor in mobile applications, and provide on-chip voltage regulation for high-performance digital systems. Switched-capacitor (SC) converters have shown tremendous promise in this regard due to favorable device utilization and scaling trends, and the emergence of high-density silicon-compatible capacitor technologies. Resonant switched-capacitor (ReSC) converters show similar promise as they benefit from the same architectures, scaling, and component trends, but also from ongoing improvements in silicon-integrated magnetic components. In this work, we explore the design and optimization of ReSC step down topologies, based on representative capacitor technologies, CMOS device parameters, and a range of possible integrated magnetics specifications.
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