A high PSR over wideband frequency range low dropout voltage regulator

Huei Sheng Jhuang, Jia Hui Wang, Sheng Wen Lai, Chien-Hung Tsai

研究成果: Conference contribution

2 引文 斯高帕斯(Scopus)

摘要

An improved low dropout regulator (LDO) with high power supply rejection (PSR) over wideband frequency range is presented in this paper. The proposed design employs the supply ripple subtraction and high-pass filtering to achieve high PSR performance. The proposed LDO is fabricated by TSMC 0.35μm 2-poly 4-metal CMOS process. The simulation results for a 50-mA load current show that the PSR is -69 dB at 10 kHz, -59 dB at 100 kHz, -53 dB at 1 MHz, and -58 dB at 10 MHz. The results show that the proposed design is suitable for switching mode DC-DC converter and SoC applications. The active area of the LDO is 270 × 320 μm2.

原文English
主出版物標題1st International Conference on Green Circuits and Systems, ICGCS 2010
頁面508-511
頁數4
DOIs
出版狀態Published - 2010 九月 20
事件1st International Conference on Green Circuits and Systems, ICGCS 2010 - Shanghai, China
持續時間: 2010 六月 212010 六月 23

出版系列

名字1st International Conference on Green Circuits and Systems, ICGCS 2010

Other

Other1st International Conference on Green Circuits and Systems, ICGCS 2010
國家China
城市Shanghai
期間10-06-2110-06-23

All Science Journal Classification (ASJC) codes

  • Hardware and Architecture
  • Electrical and Electronic Engineering

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