SIDO buck converter with independent outputs

Author

Eachempatti, H. ; Ganta, S. ; Silva-Martinez, J. ; Martinez-Garcia, H.

Author_Institution

Dept. (ECE), Texas A&M Univ., College Station, TX, USA

fYear

2010

Firstpage

37

Lastpage

40

Abstract

The portable electronics market is rapidly migrating towards more compact devices requiring multiple high-integrity high-efficiency voltage supplies for empowering the systems. This paper demonstrates a single inductor used in a buck converter with two output voltages from an input battery with voltage of value 3V. The main target is low cross regulation between the two outputs to supply independent load current levels while maintaining desired output voltage values well within a ripple that is set by adaptive hysteresis levels. A reverse current detector to avoid negative current flowing through the inductor prevents efficiency degradation at light load.

Keywords

power convertors; power inductors; SIDO buck converter; adaptive hysteresis levels; compact devices; efficiency degradation; independent outputs; inductor; load current levels; multiple high-integrity high-efficiency voltage supply; negative current; output voltage values; portable electronics market; reverse current detector; Buck converters; Capacitors; Consumer electronics; Hysteresis; Inductors; Monitoring; Rails; Switched-mode power supply; Switches; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems (MWSCAS), 2010 53rd IEEE International Midwest Symposium on

Conference_Location

Seattle, WA

ISSN

1548-3746

Print_ISBN

978-1-4244-7771-5

Type

conf

DOI

10.1109/MWSCAS.2010.5548555

Filename

5548555