Title :
High efficiency and latch-up free switched capacitor up converter on FD-SOI technology
Author :
Kajiwara, J. ; Kinoshita, M. ; Sakiyama, S. ; Matsuzawa, A.
Author_Institution :
Matsushita Electr. Ind. Co. Ltd., Osaka, Japan
Abstract :
We have developed a latch-up free Switched Capacitor (SC) type voltage up converter on 0.35 /spl mu/m FD-SOI technology. In this paper, we propose approximate theoretic expressions of the power efficiency and the output voltage. A test chip confirms the validity of these theoretic expressions. As a result, we can optimize the performances for various load currents of the up converter. The up converter achieved a power conversion efficiency of 93.5% including self-power. consumption at 1 mA DC load current, where switching frequency is 100 kHz, input voltage is 0.8 V, V out is 1.55 V, and capacitance is 10 /spl mu/F.
Keywords :
DC-DC power convertors; MOS analogue integrated circuits; power integrated circuits; silicon-on-insulator; switched capacitor networks; voltage regulators; 0.35 micron; 0.8 V; 1 mA; 1.55 V; 10 muF; 100 kHz; 93.5 percent; FD-SOI technology; capacitance; input voltage; latch-up free switched capacitor up converter; load currents; output voltage; power conversion efficiency; power efficiency; self-power. consumption; switching frequency; voltage regulator; voltage up converter; Batteries; Capacitance; Capacitors; Equivalent circuits; Large scale integration; Switches; Switching circuits; Switching converters; Switching frequency; Voltage;
Conference_Titel :
VLSI Circuits Digest of Technical Papers, 2002. Symposium on
Conference_Location :
Honolulu, HI, USA
Print_ISBN :
0-7803-7310-3
DOI :
10.1109/VLSIC.2002.1015107
