Output Stages for Integrated DC-DC Converters and Power ICs

Author

Ng, Wai Tung ; Trescases, Olivier ; Wei, Guowen

Author_Institution

Univ. of Toronto, Toronto

fYear

2007

fDate

20-22 Dec. 2007

Firstpage

91

Lastpage

94

Abstract

Integrated switched mode power supplies and incorporate large amount of complex mixed-signal control circuits as well as the power transistors on the same die. CMOS compatibility is a very important consideration when designing monolithic DC-DC converters. This paper examines the different power output stage designs and identifies the key device characteristics such as on-resistance, gate capacitance, switching speed that ensure optimized power conversion efficiencies. An integrated 1W, 4MHz multi-mode DC-DC converter with Segmented Output Stage and a peak power conversion efficiency of 88% is used to illustrate various design trade-offs.

Keywords

CMOS integrated circuits; DC-DC power convertors; mixed analogue-digital integrated circuits; power integrated circuits; power transistors; switched mode power supplies; CMOS compatibility; gate capacitance; integrated DC-DC converters; integrated switched mode power supplies; mixed-signal control circuits; monolithic DC-DC converters; power IC; power transistors; DC-DC power converters; Driver circuits; MOSFET circuits; Power MOSFET; Power conversion; Power integrated circuits; Power transistors; Rails; Switched-mode power supply; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electron Devices and Solid-State Circuits, 2007. EDSSC 2007. IEEE Conference on

Conference_Location

Tainan

Print_ISBN

978-1-4244-0637-1

Electronic_ISBN

978-1-4244-0637-1

Type

conf

DOI

10.1109/EDSSC.2007.4450069

Filename

4450069