Title :
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
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 ¿H and 1 ¿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;
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
DOI :
10.1109/ICSICT.2008.4734972
