A new method for multiplying the Miller capacitance using active components [voltage regulator example]

Author

de Cremoux, G. ; Christoforou, Y. ; van Loo, I.

Author_Institution

Philips Semicond., MST Commun., Nijmegen, Netherlands

fYear

2003

fDate

21-24 Sept. 2003

Firstpage

697

Lastpage

700

Abstract

We present in this paper a new design method for increasing the multiplication factor of the Miller capacitance, using active components. This is achieved by connecting the output of the Miller capacitor on a high impedance node and then buffering it to the output of the first gain stage. One can then achieve a very large Miller capacitance multiplication factor, making it possible to efficiently use the Miller effect. This technique has been used to realize a low drop-out regulator which remains stable for very high capacitive loads due exactly to this active Miller multiplication technique.

Keywords

active networks; buffer circuits; capacitance; circuit stability; voltage regulators; Miller capacitance multiplication factor; Miller effect; active component circuits; capacitive load stability; first gain stage output buffer; high impedance node; low drop-out regulator; Analog circuits; Capacitance; Capacitors; Circuit topology; Design methodology; Impedance; Joining processes; Mirrors; Output feedback; Regulators;

fLanguage

English

Publisher

ieee

Conference_Titel

Custom Integrated Circuits Conference, 2003. Proceedings of the IEEE 2003

Print_ISBN

0-7803-7842-3

Type

conf

DOI

10.1109/CICC.2003.1249489

Filename

1249489