DocumentCode
2924826
Title
A current-mode DC-DC converter using a quadratic slope compensation scheme
Author
Kawabata, Chihiro ; Sugimoto, Yasuhiro
Author_Institution
Grad. Sch. of E. E. & C. Eng., Chuo Univ., Tokyo
fYear
2009
fDate
19-22 Jan. 2009
Firstpage
113
Lastpage
114
Abstract
A quadratic slope compensation scheme for a current-mode DC-DC converter to obtain stable frequency characteristics without depending on the input and output voltages is proposed. A 5 MHz and 500 mA buck DC-DC converter with input voltages ranging from 3.3 V to 2.5 V and with output voltages ranging from 2.5 V to 0.5 V was fabricated by using a 0.35 mum CMOS process to verify the effectiveness of the scheme. Little variation of frequency characteristics at frequencies above 200 KHz for the various input and output voltages was observed.
Keywords
CMOS integrated circuits; DC-DC power convertors; power integrated circuits; CMOS process; DC-DC converter; current 5 mA; current mode; frequency 5 MHz; quadratic slope compensation scheme; size 0.35 mum; voltage 2.5 V to 0.5 V; voltage 3.3 V to 2.5 V; Bandwidth; CMOS process; Clocks; DC-DC power converters; Feedback loop; Frequency conversion; Helium; Inductors; Virtual colonoscopy; Voltage control;
fLanguage
English
Publisher
ieee
Conference_Titel
Design Automation Conference, 2009. ASP-DAC 2009. Asia and South Pacific
Conference_Location
Yokohama
Print_ISBN
978-1-4244-2748-2
Electronic_ISBN
978-1-4244-2749-9
Type
conf
DOI
10.1109/ASPDAC.2009.4796458
Filename
4796458
Link To Document