Dual-output capacitive DC-DC converter with power distribution regulator in 90 nm CMOS

Author

De Clercq, Nico ; Van Breussegem, Tom ; Dehaene, Wim ; Steyaert, Michiel

Author_Institution

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

fYear

2012

fDate

17-21 Sept. 2012

Firstpage

169

Lastpage

172

Abstract

A fully integrated Dual-Output capacitive DC-DC converter providing a total output power of 1 mW is presented. The converter realizes both a 2/3 and a 1/3 voltage conversion, from 1.2 V to respectively 0.755 V and 0.32 V. A hysteretic controller regulates both output voltages, independently of the power distribution between both outputs. It achieves an efficiency of 68.6 % for the nominal case, and a maximum efficiency of 75.3 %. The validity of the developed model and used design strategy were verified by a test chip implemented in a 90 nm bulk CMOS technology.

Keywords

CMOS integrated circuits; DC-DC power convertors; power control; voltage control; A hysteretic controller; bulk CMOS technology; efficiency 68.6 percent; fully integrated dual-output capacitive DC-DC converter; output voltage regulation; power 1 mW; power distribution regulator; size 90 nm; voltage 1.2 V to 0.32 V; voltage 1.2 V to 0.775 V; Capacitance; Capacitors; Power distribution; Regulators; System-on-a-chip; Topology; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

ESSCIRC (ESSCIRC), 2012 Proceedings of the

Conference_Location

Bordeaux

ISSN

1930-8833

Print_ISBN

978-1-4673-2212-6

Electronic_ISBN

1930-8833

Type

conf

DOI

10.1109/ESSCIRC.2012.6341285

Filename

6341285