A fully integrated 74% efficiency 3.6V to 1.5V 150mW capacitive point-of-load DC/DC-converter

Author

Van Breussegem, Tom ; Steyaert, Michiel

Author_Institution

Dept. Elektrotechniek, Katholieke Univ. Leuven, Heverlee, Belgium

fYear

2010

fDate

14-16 Sept. 2010

Firstpage

434

Lastpage

437

Abstract

Thanks to scaling, CMOS switches and integrated capacitors have increased in quality and density. This creates new opportunities in miniaturizing DC/DC-converters by integrating power drivers, as well as switches and reactive components on a single die. A 150mW fully integrated capacitive DC/DC-converter, with Multiphase Single Bound Hysteresis Control is presented. The converter achieves a peak efficiency of 77% and a full load efficiency of 74% for an output-input-voltage conversion ratio of less than 45%. It is the first fully integrated closed-loop operating converter fabricated in Bulk CMOS achieving these ratings.

Keywords

CMOS integrated circuits; DC-DC power convertors; capacitors; switches; CMOS switches; bulk CMOS; capacitive point-of-load DC/DC-converter; full load efficiency; integrated capacitors; multiphase single bound hysteresis control; output-input-voltage conversion ratio; peak efficiency; power drivers; reactive components; Capacitors; Clocks; Converters; Hysteresis; Switches; System-on-a-chip; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

ESSCIRC, 2010 Proceedings of the

Conference_Location

Seville

ISSN

1930-8833

Print_ISBN

978-1-4244-6662-7

Type

conf

DOI

10.1109/ESSCIRC.2010.5619736

Filename

5619736