Miniaturized Low-Voltage Power Converters With Fast Dynamic Response

David M. Giuliano, Matthew E. D'Asaro, Jacob Zwart, David J. Perreault
2014 IEEE Journal of Emerging and Selected Topics in Power Electronics  
This thesis introduces a two-stage architecture that combines the strengths of switched capacitor (SC) techniques (small size, light-load performance) with the high efficiency and regulation capability of switch-mode power converters. The resulting designs have a superior efficient-power density trade-off over traditional designs. These power converters can provide numerous lowvoltage outputs over a wide input voltage range with a very fast dynamic response, which are ideal for powering logic
more » ... vices in the mobile and high-performance computing markets. Both design and fabrication considerations for power converters using this architecture are addressed. The results are demonstrated in a 2.4 W dc-dc converter implemented in a 180 nm CMOS IC process and co-packaged with its passive components for high-performance. The converter operates from an input voltage of 2.7 V to 5.5 V with an output voltage of < 1.2 V, and achieves a 2210 W/inch 3 power density with ;> 80% efficiency.
doi:10.1109/jestpe.2014.2331671 fatcat:mkm7cphiznfwrp5vkqkquop6ru