A single-inductor multiple-output boost converter with freewheel charge-pump control

Chia Min Chen*, Te Wen Liao, Kai Hsiu Hsu, Chung-Chih Hung

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

This paper presents a freewheel-charge-pump-controlled design for a single-inductor multiple-output (SIMO) DC-DC Converter. By applying the freewheel-charge-pump-controlled (FCPC) technique, the freewheel switching time is reused, and two extra charge-pump outputs are provided by time recycling, with no cost in time sequences. The converter has two step-up outputs and two charge-pump outputs that can be higher or lower than the input supply. The proposed converter shows low cross-regulation and achieves a maximum loading current of 70 mA. Fabricated in a 0.18-μm CMOS process, the proposed circuit occupies only 1.3×1.3 mm2. Experimental results demonstrate that the converter successfully generates four wellregulated outputs with a single inductor. The supply voltage ranged from 1.6 V to 2.5 V and the load regulation performance was 0.08 mV/mA, 0.05mV/mA, 1.7 mV/mA, and 1.9 mV/mA for VO1, VO2, VO3 and VO4, respectively.

Original languageEnglish
Title of host publication2012 Proceedings of the European Solid State Circuits Conference, ESSCIRC 2012
Pages157-160
Number of pages4
DOIs
StatePublished - 14 Dec 2012
Event38th European Solid State Circuits Conference, ESSCIRC 2012 - Bordeaux, France
Duration: 17 Sep 201221 Sep 2012

Publication series

NameEuropean Solid-State Circuits Conference
ISSN (Print)1930-8833

Conference

Conference38th European Solid State Circuits Conference, ESSCIRC 2012
CountryFrance
CityBordeaux
Period17/09/1221/09/12

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  • Cite this

    Chen, C. M., Liao, T. W., Hsu, K. H., & Hung, C-C. (2012). A single-inductor multiple-output boost converter with freewheel charge-pump control. In 2012 Proceedings of the European Solid State Circuits Conference, ESSCIRC 2012 (pp. 157-160). [6341283] (European Solid-State Circuits Conference). https://doi.org/10.1109/ESSCIRC.2012.6341283