Quick-recovery low dropout linear regulator

Details Quick-recovery low dropout linear regulator Quick-recovery low dropout linear regulator

2006-09-12

2006-09-12

Riley, Shawn (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

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

Reexamination Certificate

active

07106033

ABSTRACT:
This invention relates to a quick-recovery low dropout linear regulator (LDO), which utilizes a current-detection circuit to detect the magnitude of the output current, and the output current compares with a reference current so as to dynamically adjust the bias-current of the 2nd stage amplifier such that the system remains stable even when the output current is high resulting from the damping ratio ζ is still greater than 1. As a result, the output voltage can quickly recover stability from a large and sudden change of the output current.

REFERENCES:
patent: 6275399 (2001-08-01), Miyazaki et al.
patent: 6600299 (2003-07-01), Xi

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