Voltage regulator circuit for a memory circuit

Details Voltage regulator circuit for a memory circuit Voltage regulator circuit for a memory circuit

2008-06-03

2011-10-04

Lappas, Jason (Department: 2827)

Static information storage and retrieval

Powering

Conservation of power

C365S226000, C365S189090

Reexamination Certificate

active

08031550

ABSTRACT:
A voltage regulator circuit for a memory circuit comprises a voltage divider, a capacitor, an active-mode voltage regulator and a standby-mode voltage regulator. The active-mode voltage regulator is always on while in active mode, and turned on whenever a refresh is requested. The standby-mode voltage regulator is periodically turned on while in standby mode, and turned on whenever a refresh is requested. In addition, the active voltage regulator uses stronger transistors than those used by the standby-mode voltage regulator, and both the active-mode voltage regulator and the standby-mode voltage regulator are coupled to the voltage divider and the capacitor.

REFERENCES:
patent: 5337284 (1994-08-01), Cordoba et al.
patent: 6385119 (2002-05-01), Kobayashi et al.
patent: 6456553 (2002-09-01), Brass et al.
patent: 7248532 (2007-07-01), Schoenfeld
patent: 2007/0001752 (2007-01-01), Jin

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