著者
Kojima Yuta Hirose Tetsuya Tsubaki Keishi Ozaki Toshihiro Asano Hiroki Kuroki Nobutaka Numa Masahiro
出版者
Institute of Physics
雑誌
Jpn. J. Appl. Phys. (ISSN:00214922)
巻号頁・発行日
vol.55, no.4, 2016-03-16
被引用文献数
9

In this paper, we present a fully on-chip switched-capacitor DC–DC converter for low-voltage CMOS LSIs. The converter has three terminals of input, ground, and output, by developing control circuits with fully on-chip configuration. We employ an ultra low-power nanoampere bias current and voltage reference circuit to achieve ultra low-power dissipation of control circuits. It enables us to realize a highly efficient power conversion circuit at light-load-current applications. The converter achieves highly efficient and robust voltage conversion using a pulse frequency modulation control circuit and a start-up/fail-safe circuit. Measurement results demonstrated that the converter can convert a 3.0 V input into 1.2 V output successfully. The start-up and fail-safe operations were confirmed through the measurement. The efficiency was more than 50% in the range of 2–6 µA load current.

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#神戸大学 #論文 A fully on-chip three-terminal switched-capacitor DC–DC converter for low-voltage CMOS LSIs https://t.co/EW2jbO7lq9

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