A Low Dropout Regulator with Over current reminder Circuits

摘要：

A low voltage,low dropout (LDO) regulator with an over current reminder circuit is proposed in this paper.Based on SMIC 0.18μm 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～30mV when a current pulse draws-out from the LDO.

关键词： low dropout (LDO) regulator over current reminder circuit pole-zero tracking frequency compensation

作者: Wang Yong-sheng Li Rui-xuan Yu Ming-yan Lai Feng-chang

作者单位: Micro-electronics Center of Harbin institute of technology

会议类型: 国际会议

会议名称: 2009 IEEE 8th International Conference on ASIC(第八届IEEE国际专用集成电路大会)

会议地点: 长沙

会议语种:英文

页码: 1089-1092

在线出版日期: 2009-10-20（万方平台首次上网日期，不代表论文的发表时间）