A Low Dropout Regulator with Over current reminder Circuits

被引：0
|
作者：
Wang Yong-sheng [1 ]
Li Rui-xuan [1 ]
Yu Ming-yan [1 ]
Lai Feng-chang [1 ]
机构：
[1] Harbin Inst Technol, Ctr Microelect, Harbin, Peoples R China
来源：
2009 IEEE 8TH INTERNATIONAL CONFERENCE ON ASIC, VOLS 1 AND 2, PROCEEDINGS | 2009年
关键词：
low dropout (LDO) regulator; over current reminder circuit; pole-zero tracking frequency compensation;
D O I：
暂无
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 low voltage, low dropout (LDO) regulator with an over current reminder circuit is proposed in this paper. Based on SMIC 0.18 mu m mix signal CMOS process, the circuit is able to drive a load up to 120mA, and it can give an over current warning to the customer when the load current is over 120mA,and when the load current drops down to 110mA the warning will be recalled. By using the pole-zero tracking frequency compensation, the ripple of the output voltage between 28mV similar to 30mV when a current pulse draws-out from the LDO1.
引用
收藏
页码：1089 / 1092
页数：4
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