A compact switched-capacitor regulated charge pump power supply

被引：69
|
作者：
Gregoire, B. Robert [1 ]
机构：
[1] AMI Semicond, Bozeman, MT 59718 USA
来源：
IEEE JOURNAL OF SOLID-STATE CIRCUITS | 2006年 / 41卷 / 08期
关键词：
bandgap reference; capacitors; charge pump; circuit analysis; circuit stability; circuit topology; DC-DC power conversion; overcurrent protection; power conversion; power supplies; switched-capacitor circuits; voltage reference;
D O I：
10.1109/JSSC.2006.875303
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A CMOS switched-capacitor reference is combined with a switched-capacitor voltage doubling charge pump to produce a compact regulated 3.2-V power supply from an input that ranges from 1.8 to 3.5 V. It can supply up to 6 mA at minimum input. The switched-capacitor topology uses a single PN junction and could allow for inputs and outputs less than 1 V. The concept of constant frequency charge pump regulation is discussed, as is the theory behind stability, load regulation, and efficiency. Measured results from a 0.5-mu m CMOS process are given.
引用
收藏
页码：1944 / 1953
页数：10
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