高稳定性低压差线性稳压器的研究和设计  

Research and Design of the High Stability of Low-dropout Linear Regulator

作　　者：王小华[1] 唐宁[2] 赵荣建[2] 宋树祥[1] 蒋燕燕[1] 

机构地区：[1]广西师范大学电子工程学院,桂林541004 [2]桂林电子科技大学信息与通信学院,桂林541004

出　　处：《科学技术与工程》2013年第24期7041-7044,共4页Science Technology and Engineering

基　　金：国家自然科学基金(61061006)资助

摘　　要：低压差线性稳压器的输出电压精度受电源电压调整率、负载调整率、基准精度和取样电阻匹配度等因素的影响。通过对影响线性稳压器的输出电压精度因素的分析,提出新的优化电路设计。利用cadence软件0.5μm工艺对影响低压差线性稳压器电路的输出电压的关键指标进行了仿真验证,输出电压精度良好,电路具有很高的性能。The output voltage accuracy of the low drop linear regulator is depended on power supply voltage regulation, load regulation, band-gap precision and sampling resistor matching degree etc. Through the analysis of the linear regulator output voltage accuracy factor, the new optimized circuit design is put forward on Simulated design on the circuit used cadence software 0. 5 p^m process, the main specifications which effecting the output voltage ac- curacy of the low drop linear regulator are simulated. The accuracy of output voltage is good. It gain the very high performance.

关 键 词：线性稳压器 高稳定性 输出电压精度 

分 类 号：TM44[电气工程—电器] TN432[电子电信—微电子学与固体电子学]