The design of DC-DC Converter with DT-CMOS Switch

Author

Daeyeol Yoo ; Hanhee Jo ; Chunggwang Lee ; Hyunyoung Kim ; Yongseo Koo

Author_Institution

Dept. of Electron. & Electr. Eng., Dankook Univ., Yongin, South Korea

fYear

2014

fDate

22-25 June 2014

Firstpage

1

Lastpage

2

Abstract

This paper is proposed DC-DC Converter with DT-CMOS (Dynamic Threshold voltage MOSFET) Switch. The proposed circuit is evaluated and compared with CMOS switch by both circuit simulation and device simulation. DT-CMOS switch reduces the output ripple and the conduction loss through a low on-resistance. Therefore, proposed converter has a excellent performance efficiency than converter with conventional CMOS switch. Proposed converter has switching frequency of 1.2MHz, 3.3V input voltage, 2.5V output voltage, and maximum current of 100mA. Also, this paper proposes two protection circuit in order to ensure the reliability. The first function is UVLO(under voltage lockout) and the second function is TSD(thermal shutdown). So, proposed converter can be protected from input under-voltage and over temperature.

Keywords

CMOS integrated circuits; DC-DC power convertors; circuit reliability; semiconductor switches; DC-DC converter; DT-CMOS Switch; TSD; UVLO; circuit simulation; current 100 mA; device simulation; dynamic threshold voltage MOSFET; frequency 1.2 MHz; protection circuit; thermal shutdown; under voltage lockout; voltage 2.5 V; voltage 3.3 V; Converter; DC-DC; DT-CMOS; TSD; UVLO;

fLanguage

English

Publisher

ieee

Conference_Titel

Consumer Electronics (ISCE 2014), The 18th IEEE International Symposium on

Conference_Location

JeJu Island

Type

conf

DOI

10.1109/ISCE.2014.6884539

Filename

6884539