DocumentCode
2771608
Title
A fully-integrated 0.18µm CMOS DC-DC step-up converter, using a bondwire spiral inductor
Author
Wens, Mike ; Cornelissens, Koen ; Steyaert, Michiel
Author_Institution
K.U. Leuven, Leuven
fYear
2007
fDate
11-13 Sept. 2007
Firstpage
268
Lastpage
271
Abstract
A fully-integrated DC-DC step-up converter in a 0.18 mum 1.8 V CMOS technology is realized with an integrated bondwire spiral inductor and an integrated MIMcap. The converter is designed to generate 3.3 V out of a 1.8 V power supply. Stacked transistors are used to cope with the high voltage. It operates in discontinuous, asynchronous switching mode, with a switching frequency of 100 MHz. The maximum output power is 150 mW, with an output ripple of 200 mV. The maximum power efficiency is 63%. A control system using a PWM scheme keeps the output voltage constant with varying loads up to 9 MHz.
Keywords
CMOS integrated circuits; DC-DC power convertors; MIM devices; PWM power convertors; inductors; CMOS technology; DC-DC step-up converter; PWM; bondwire spiral inductor; frequency 100 MHz; integrated MIMcap; power 150 MW; size 0.18 mum; voltage 1.8 V; Bonding; CMOS technology; DC-DC power converters; Inductors; Power generation; Power supplies; Pulse width modulation; Spirals; Switching frequency; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
Solid State Circuits Conference, 2007. ESSCIRC 2007. 33rd European
Conference_Location
Munich
ISSN
1930-8833
Print_ISBN
978-1-4244-1125-2
Type
conf
DOI
10.1109/ESSCIRC.2007.4430295
Filename
4430295
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