半导体学报2008，Vol.29Issue(8)：1507-1510,4.
面向片上系统的无片外电容CMOS低压差稳压器
A Capacitor-Free CMOS Low-Dropout Regulator for System-on-Chip Application
摘要
Abstract
A stable CMOS low drop-out regulator without an off-chip capacitor for system-on-chip application is presen-ted.By using an on-chip pole splitting technique and an on-chip pole-zero canceling technique,high stability is achieved without an off-chip capacitor.The chip was implemented in CSMC's 0.5μm CMOS technology and the die area is 600μm ×480μm.The error of the output voltage due to line variation is less than±0.21%,and the quiescent current is 39.8μA.The power supply rejection ratio at 100kHz is -33.9dB,and the output noise spectral densities at 100Hz and 100kHz are 1.65 and 0.89μV/√Hz,respectively.关键词
低压差稳压器/极点分离/零极点抵消/无片外电容Key words
low-dropout regulator/pole splitting/pole-zero cancelling/capacitor-free分类
信息技术与安全科学引用本文复制引用
韩鹏,王志功,徐勇,李伟..面向片上系统的无片外电容CMOS低压差稳压器[J].半导体学报,2008,29(8):1507-1510,4.基金项目
国家自然科学基金资助项目(批准号:90707005) （批准号:90707005）
Project supported by the National Natural Science Foundation of China (No.90707005) （No.90707005）
