A 92.1% efficient DC-DC converter for ultra-low power microcontrollers with fast wake-up

F. Santoro,Rüdiger Kuhn, N. Gibson, N. Rasera,T. Tost,Doris Schmitt-Landsiedel,Ralf Brederlow

2017 IEEE Custom Integrated Circuits Conference (CICC)（2017）

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摘要

In this paper, we present a 92.1% peak efficiency DC-DC converter for integration in a ultra-low power microcontroller. The converter is designed to drastically reduce the wake-up energy of the system while achieving a high efficiency value of 92.1% and a small quiescent current of only 440 nA. The converter guarantees an output ripple smaller than 30 mV loaded with only 56 nF. The regulator is fabricated in a 130 nm CMOS process and occupies 0.14 mm ² . It operates from 1.8 V to 3.3 V and provides a stable output of 1.2 V.

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关键词

DC-DC converter,ultralow power microcontrollers,fast wake-up microcontrollers,voltage regulator,CMOS process,voltage 1.2 V,voltage 1.8 V,voltage 3.3 V,efficiency 92.1 percent,current 440 nA,size 130 nm

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