Design of a High Performance Monolithic Current-Mode Boost DC-DC Converter  

作　　者：YU Hua ZOU Xuecheng CHEN Chaoyang ZHANG Jing 

机构地区：[1]Department of Electronic Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China [2]State Key Laboratory for Image Processing and Intelligence Control, Institute for Pattern Recognition and Artificial Intelligence, Huazhong University of Science and Technology, Wuhan 430074, China

出　　处：《Chinese Journal of Electronics》2006年第4期599-603,共5页电子学报（英文版）

基　　金：This work is supported by the National Natural Science Foundation of China （No.90207020）.

摘　　要：The work presented in this paper mainly focuses on designing a monolithic current-mode boost DC- DC converter with integrated 22V DMOS FET power switch and control circuits. The boost converter operating at fixed frequency of 1.6MHz has been fabricated with a 1.5μm Bipolar-CMOS-DMOS （BCD） process. The chip with features of wide input voltage range （2.7V to 14V）, high efficiency over large load range （lmA to 500mA）, low shutdown current, fast transient response and low power, was designed for mobile power management applications. Besides issues such as technology choice, power switch optimization and ramp compensation, the paper also copes with the monolithic switching noise in switching power IC circuits.

关 键 词：Boost DC-DC converter Ramp compensation Current-mode control Current-sensing circuit Pulse width modulation （PWM） Switching noise. 

分 类 号：TN624[电子电信—电路与系统]