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A novel frequency compensation technique for low-voltage low-dropout regulator

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3 Author(s)
Ka Nang Leung ; Dept. of Electr. & Electron. Eng., Hong Kong Univ. of Sci. & Technol., Hong Kong ; Mok, P.K.T. ; Wing-Hung Ki

A novel frequency compensation technique for low-voltage low-dropout regulator (LDR) is presented. The proposed technique, called pole-control frequency compensation (PCFC), provides faster loop response and does not require a large filtering capacitor. Both theoretical analysis and simulation show that the stability of the LDR using PCFC is independent of the load current, temperature and equivalent series resistance of the filtering capacitor. LDRs are well suited to portable equipment such as cellular phones, pagers and personal digital assistants

Published in:

Circuits and Systems, 1999. ISCAS '99. Proceedings of the 1999 IEEE International Symposium on  (Volume:5 )

Date of Conference:

1999