標題: Power MOSFET array in LDO regulator compensation
作者: Lin, Yung-Hsin
Zheng, Kuo-Lin
Chen, Ke-Horng
電控工程研究所
Institute of Electrical and Control Engineering
公開日期: 2007
摘要: This paper proposes an equivalent power MOSFET array for implementing smooth pole tracking in Low-dropout (LDO) regulator compensation. As we know, turning on/off the power transistors in proper sequence alleviates the ground bounce effects. Thus, power MOSFET array with suitable turn-on/off sequence is presented to suppress the output ripples in case of load variations. Besides, load dependent power MOSFET array also provides a smooth pole tracking in order to effectively compensate LDO regulator. Experimental results demonstrate good performance of fast and smooth pole tracking. Compared to conventional pole tracking technique, the new technique has low output ripples and fast response time. This technique is a good solution for RF SoC applications.
URI: http://hdl.handle.net/11536/10356
ISBN: 978-1-4244-1175-7
ISSN: 1548-3746
期刊: 2007 50TH MIDWEST SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOLS 1-3
起始頁: 464
結束頁: 467
Appears in Collections:Conferences Paper