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High-efficiency low-noise pulse-width modulation DC-DC buck converter based on multi-partition switching for mobile system-on-a-chip applications
- An, Tai-Ji;
- Ahn, Gil-Cho;
- Lee, Seung-Hoon
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9초록
This study presents a high-efficiency low-noise pulse-width modulation (PWM) DC-DC buck converter based on multi-partition switching for mobile system-on-a-chip applications. A multi-partition switching technique is employed for the control of large current driving switches to minimise the switching noise. In addition, a PWM control with a switching frequency of 2 MHz is applied for the driving of output stage with a heavy load to optimise the power efficiency. The prototype DC-DC buck converter with an active die area of 0.28 mm(2) was implemented using a 0.18 mu m bipolar-CMOS-DMOS (BCD) process. The peak power efficiency is 93%, while supplying an output current of 200 mA and an output voltage of 1.8 V.
키워드
DC-DC power convertors; PWM power convertors; switching convertors; system-on-chip; minimisation; mobile handsets; pulse width modulation DC-DC buck converter; multipartition switching technique; mobile system-on-a-chip applications; current driving switch control; switching noise minimisation; PWM control; power efficiency minimisation; BCD process; frequency 2 MHz; size 0; 18 mum; current 200 mA; voltage 1; 8 V; BOOST DC/DC CONVERTER; PORTABLE APPLICATIONS; DESIGN; COMPENSATION; CIRCUIT
- 제목
- High-efficiency low-noise pulse-width modulation DC-DC buck converter based on multi-partition switching for mobile system-on-a-chip applications
- 저자
- An, Tai-Ji; Ahn, Gil-Cho; Lee, Seung-Hoon
- 발행일
- 2016-03-09
- 유형
- Article
- 권
- 9
- 호
- 3
- 페이지
- 559 ~ 567