Title :
A new single-inductor triple-output buck converter using CMOS technology
Author :
Chen, Jiann-Jong ; Zheng, Chuan-Hong ; Hwang, Yuh-Shyan
Author_Institution :
Dept. of Electron. Eng., Nat. Taipei Univ. of Technol., Taipei, Taiwan
Abstract :
A new single-inductor triple-output (SITO) buck converter using CMOS technology is presented in this paper. A new time multiplexing scheme is also proposed for control. This SITO DC-DC buck converter uses only one inductor to provide three independent output voltages. The output voltages of 2.5 V, 1.65 V, and 0.8 V are designed from a 3.6 V power supply. A maximum efficiency of 77.4% is achieved at a total output power of 460 mW, with a switching frequency of 1 MHz. The proposed SITO buck converter circuit has been fabricated with TSMC 0.35 μm 2P4 M CMOS technology, and the active chip area including I/O pad is 1.53 mm × 1.79 mm.
Keywords :
CMOS integrated circuits; DC-DC power convertors; SITO DC-DC buck converter; SITO buck converter circuit; TSMC 2P4M CMOS technology; frequency 1 MHz; power 460 mW; single-inductor triple-output buck converter; size 0.35 mum; time multiplexing scheme; voltage 0.8 V; voltage 1.65 V; voltage 2.5 V; voltage 3.6 V; Buck converters; CMOS technology; Circuits; Costs; DC-DC power converters; Multiplexing; Power supplies; Pulse width modulation; Pulse width modulation converters; Voltage; CMOS technology; DC-DC buck converter; single-inductor triple-output (SITO);
Conference_Titel :
Power Electronics Conference (IPEC), 2010 International
Conference_Location :
Sapporo
Print_ISBN :
978-1-4244-5394-8
DOI :
10.1109/IPEC.2010.5543837
