A Low Dropout Regulator Using Current Buffer Compensation Technique
A current buffer compensation Low Dropout (LDO) regulator for portable applications is present in this paper. The current buffer compensation scheme is a current feedback amplifier, which provides low output impendence in order to move the non-dominant pole due to the large gate capacitance of the pass transistor of the LDO regulator to high frequency. This LDO circuit had been designed and implemented in a 0.35-um CMOS processes, it occupied a chip area of 810x572 μm2. The measurement results show that this circuit functions properly with supply voltage of 2.2~3.3 V and provides maximum current of 200 mA. The output voltage can be adjusted from 0.6 V to 3.1 V when the supply voltage is 3.3 V.
Yeong-Tsair Lin Chi-Cheng Wu Mei-Chu Jen Dong-Shiuh Wu Zhe-Wei Wu
Department of Electronic Engineering, Lunghwa University of Science and Technology, Taoyuan 33306, Taiwan
国际会议
上海
英文
144-146
2010-11-01(万方平台首次上网日期,不代表论文的发表时间)