A single-inductor dual-output pseudo-DCM/CCM buck and boost converter in 90nm CMOS technology

Author

Jia, Jingbin ; Nang Leung, Ka

Author_Institution

Dept. of Electron. Eng., Chinese Univ. of Hong Kong, Hong Kong, China

fYear

2008

fDate

20-23 Oct. 2008

Firstpage

1937

Lastpage

1940

Abstract

A single-inductor dual-output DC-DC converter designed in a 90 nm CMOS technology is presented in this paper. One of the sub-converters is a buck converter, and the other one is a boost converter. There are totally five power switches in the power stage. The values of the off-chip inductor and capacitors at the output of each sub-converter are 1 Â¿H and 1 Â¿F, respectively. The switching frequency of the internal oscillator is 4 MHz. The power efficiency of each sub-converter is about 88% for load current of 20 mA.

Keywords

CMOS integrated circuits; DC-DC power convertors; CMOS technology; boost converter; capacitance 1 muF; capacitors; current 20 mA; internal oscillator; off-chip inductor; power switches; single-inductor dual-output DC-DC converter; single-inductor dual-output pseudoDCM-CCM buck; size 90 nm; switching frequency; CMOS technology; Capacitors; Circuits; DC-DC power converters; Inductors; Operational amplifiers; Switches; Switching converters; Switching frequency; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State and Integrated-Circuit Technology, 2008. ICSICT 2008. 9th International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-2185-5

Electronic_ISBN

978-1-4244-2186-2

Type

conf

DOI

10.1109/ICSICT.2008.4734972

Filename

4734972