Voltage regulator circuit

Details Voltage regulator circuit Voltage regulator circuit

2006-02-21

2006-02-21

Vu, Bao Q. (Department: 2838)

Static information storage and retrieval

Powering

C365S189090, C341S144000

Reexamination Certificate

active

07002869

ABSTRACT:
A voltage regulator circuit and a semiconductor memory device using the same are provided. The voltage regulator circuit regulates an input voltage to provide an output voltage. The voltage regulator circuit comprises a voltage divider to divide the output voltage, a comparator to determine whether the divided voltage is less than a reference voltage, a driver connected between the input voltage and the output voltage, and operating operate responsive to the comparator, and a controller to control the voltage divider to gradually vary the output voltage. The voltage divider includes a resistance that operates responsive to the controller and whose value varies in a binary weighted form.

REFERENCES:
patent: 5119095 (1992-06-01), Asazawa
patent: 6002354 (1999-12-01), Itoh et al.
patent: 6061289 (2000-05-01), Itoh et al.

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