Area-efficient capacitor-free low-dropout regulator

Details Area-efficient capacitor-free low-dropout regulator Area-efficient capacitor-free low-dropout regulator

2006-07-13

2009-02-24

Berhane, Adolf (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

Reexamination Certificate

active

07495422

ABSTRACT:
An area-efficient capacitor-free low-dropout regulator based on a current-feedback frequency compensation technique is disclosed. An implementation of a current feedback block with a single compensation capacitor is used to enable capacitance reduction. The resultant low-dropout regulator does not generally require an off-chip capacitor for stability and is particularly useful for system-on-chip applications.

REFERENCES:
patent: 6208206 (2001-03-01), Leung et al.
patent: 6304131 (2001-10-01), Huggins et al.
patent: 6977490 (2005-12-01), Zhang et al.
patent: 7109897 (2006-09-01), Levesque
patent: 7167054 (2007-01-01), Dening et al.
Leung et al., “A Capacitor-Free CMOS Low-Dropout Regulator With Damping-Factor-Control Frequency Compensation,” IEEE Journal of Solid-State Circuits, vol. 38, No. 10, Oct. 2003, pp. 1691-1702.

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