电子器件2026，Vol.49Issue(2)：270-276,7.DOI:10.3969/j.issn.1005-9490.2026.02.006
CMOS低压差线性稳压器的多目标性能优化设计
Multi-Objective Performance Optimization and Design of CMOS Low-Dropout Regulator
摘要
Abstract
A combined method of manual and algorithmic design is adopted to implement a CMOS low dropout regulator(LDO)circuit with a stable output voltage of 1.8V.By taking the temperature coefficient(TC),power supply rejection ratio(PSRR),and output noise(NOISE)of LDO as performance optimization objectives,and the size of core MOSFET devices as design variables,a circuit model is es-tablished based on response surface methodology(RSM)and nonlinear mapping of response parameters is performed.Finally,the optimiza-tion solution of multi-objective performance combination is achieved.A circuit response surface model is constructed using only 29 sets of sampled data.The experiment proves that the optimization results based on RSM algorithm can accurately match the actual simulation data after optimization,verifying the effectiveness of the optimal performance solutions for TC,PSRR,and NOISE.Compared with the results of before-algorithm optimization,the post simulation results show that TC decreases from 16.31×10-6/℃to 14.92×10-6/℃,PSRR increases from-85.64 dB to-112.29 dB,and NOISE decreases from 39.36 μV to 27.16 μV.关键词
响应面算法/低压差线性稳压器(LDO)/多目标性能优化Key words
response surface methodology/low-dropout regulator/multi-objective performance optimization分类
信息技术与安全科学引用本文复制引用
刘湘,刘博,杨贺,王想军,王金婵..CMOS低压差线性稳压器的多目标性能优化设计[J].电子器件,2026,49(2):270-276,7.基金项目
国家自然科学基金项目(61704049) （61704049）
河南省科技厅科技计划项目(232102211066) （232102211066）
