Title :
A SC DC-DC converter with pseudo-continuous output regulation using a three-stage switchable opamp
Author :
Lee, Hoi ; Mok, Philip K T
Author_Institution :
Hong Kong Univ. of Sci. & Technol., China
Abstract :
Pseudo-continuous control is developed for a regulated SC DC-DC converter using a three-stage switchable operational amplifier. The alternate switching of gain stages enables continuous output regulation in all clock phases. The converter achieves an output ripple of 20mV and output recovery time of ∼25μs for a load current of 50 to 150mA and switching frequency of 200 to 500kHz in 0.6μm CMOS.
Keywords :
CMOS integrated circuits; DC-DC power convertors; operational amplifiers; regulation; 0.6 micron; 200 to 500 kHz; 50 to 150 mA; CMOS; pseudo-continuous control; pseudo-continuous output regulation; regulated SC DC-DC converter; three-stage switchable operational amplifier; Circuits; Clocks; DC-DC power converters; Filtering; Power generation; Power transistors; Switches; Switching converters; Switching frequency; Voltage control;
Conference_Titel :
Solid-State Circuits Conference, 2005. Digest of Technical Papers. ISSCC. 2005 IEEE International
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-8904-2
DOI :
10.1109/ISSCC.2005.1493982
