A High Efficiency Current-Mode DC-DC Step-Down Converter with Wide Range of Output Current

被引：0
|
作者：
Chen, Chia-Min [1 ]
Hsu, Kai-Hsiu [1 ]
Hung, Chung-Chih [1 ]
机构：
[1] Natl Chiao Tung Univ, Dept Elect Engn, Hsinchu, Taiwan
来源：
53RD IEEE INTERNATIONAL MIDWEST SYMPOSIUM ON CIRCUITS AND SYSTEMS | 2010年
关键词：
current-mode controller; current-sensing circuit; DC-DC converter; pulse-width modulation(PWM); switch-mode power converter;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper presents a high efficiency current-mode DC-DC step-down converter with wide range of output current. The converter adaptively operates as Pulse-Width Modulation (PWM). An on-chip current sensing technique is employed to reduce external components and no extra I/O pins are needed for the current-mode controller. A soft-start operation is designed to eliminate the excess large current during the startup of the regulator. The circuit has been designed with TSMC 2P4M 0.35 mu m CMOS process. The range of the supply voltage is from 2 to 5V, which is suitable for single-cell lithium-ion battery.
引用
收藏
页码：1009 / 1012
页数：4
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