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Method for designing integrated charge pumps with minimum area

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3 Author(s)
Gregori, S. ; Sch. of Eng., Univ. of Guelph, Guelph, ON, Canada ; Cabrini, A. ; Torelli, G.

Silicon area occupation is a key factor to be minimized when designing integrated charge pumps. In this paper, we propose a method for designing linear charge pumps with minimum area. Starting from the electrical design specifications (i.e. the minimum output voltage that the charge pump must provide for a given maximum output current), we derive a relation between the operating frequency and the total capacitance needed for the charge pump. Furthermore, we discuss some design trade-offs and illustrate a procedure for selecting the operating frequency and the corresponding size of capacitors and switches to keep the area to a minimum.

Published in:

Circuits and Systems (MWSCAS), 2010 53rd IEEE International Midwest Symposium on

Date of Conference:

1-4 Aug. 2010