Low dropout voltage regulator with quiescent current reduction

Details Low dropout voltage regulator with quiescent current reduction Low dropout voltage regulator with quiescent current reduction

1989-03-15

1990-03-06

Salce, Patrick R.

Electricity: power supply or regulation systems

Input level responsive

Using a linearly acting final control device

323273, G05F 500

Patent

active

049069136

ABSTRACT:
A low dropout voltage regulator with quiescent current reduction has a pass transistor coupled for conduction from a positive supply terminal to a regulated output terminal. A first switch is coupled to conduct the base current of the pass transistor to the regulated output terminal. A second switch is coupled to conduct the base current of the pass transistor to ground. A control circuit selects the action of the switches to select the conduction path for base current.

REFERENCES:
patent: 4319179 (1982-03-01), Jett, Jr.
patent: 4560918 (1985-12-01), Callen
patent: 4613809 (1986-09-01), Skovmand
patent: 4792747 (1988-12-01), Schroeder

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