电子器件Issue(2)：317-320,4.DOI:10.3969/j.issn.1005-9490.2015.02.018
用于低压差线性稳压器的输出精密微调设计技术∗
A High-Precision Output-Tuning Technique for LDO Regulator
摘要
Abstract
A high-precision output-tuning technique used for low-dropout regulator( LDO) is presented in this paper. A tunable resistor ladder is utilized in the feedback network for high-precision LDO output control. Dummy resistors are also introduced to surround the unit resistors for good matching performance. The applicability and superiority of this proposed method is verified by the design of a 65 nm CMOS LDO. The design results show that the line regula-tion of this LDO is about 0.05 mV/V,and the output voltage can be precisely tuned by 0.02 V/step within a range from 1.02 V to 1.36 V. The high-precision tuning ability can effectively overcome the output errors caused by power supply variation,temperature drift and other non-ideal factors,making it very suitable for embedded SoC( SoC:Sys-tem on Chip) applications.关键词
低压差/线性稳压器/高精度/输出微调/片上系统Key words
low dropout/linear regulator/high-precision/output-tuning/System-on-Chip分类
信息技术与安全科学引用本文复制引用
牟云飞,佟星元..用于低压差线性稳压器的输出精密微调设计技术∗[J].电子器件,2015,(2):317-320,4.基金项目
国家自然科学基金项目(61204029) （61204029）
国家863计划项目(2013AA014504) （2013AA014504）
陕西省自然科学基金项目(2014JQ8332) （2014JQ8332）
