Title :
Adaptive-Vth CMOS/SOI DC-DC Converter Scheme for 0.3-V Operation
Author :
Yoshida, Yoshifumi ; Utsunomiya, Fumiyasu ; Douseki, Takakuni
Author_Institution :
Seiko Instruments Inc., Chiba
Abstract :
An adaptive-Vth CMOS/SOI DC-DC converter scheme, which consists of a low-Vth charge-pump circuit and a high-Vth DC-DC converter, and enables to operate at 0.3-V, is proposed. The low-Vth circuit starts to boost a small input voltage and generates output power. And then the high-Vth converter continues the boosting operation by using the power of the low-Vth circuit. If once the high-Vth converter starts, the low-Vth circuit automatically stops the boosting operation. We fabricated the adaptive-Vth DC-DC converter with a 0.8-mum FD-SOI process and verified the converter has a conversion efficiency of more than 80% at an input voltage of 0.3 V
Keywords :
CMOS integrated circuits; DC-DC power convertors; low-power electronics; silicon-on-insulator; 0.3 V; 0.8 micron; CMOS integrated circuit; DC-DC converter scheme; FD-SOI process; low-voltage charge pump circuit; Boosting; Capacitance; Charge pumps; Chromium; DC-DC power converters; Diodes; MOSFET circuits; Power generation; Power supplies; Voltage;
Conference_Titel :
International SOI Conference, 2006 IEEE
Conference_Location :
Niagara Falls, NY
Print_ISBN :
1-4244-0289-1
Electronic_ISBN :
1078-621X
DOI :
10.1109/SOI.2006.284464
