Semiconductor integrated circuit device having an internal power

Details Semiconductor integrated circuit device having an internal power Semiconductor integrated circuit device having an internal power

1997-10-31

1998-09-22

Cunningham, Terry

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

327313, 327321, 327323, 327540, 323315, G05F 110

Patent

active

058120211

ABSTRACT:
An object is to provide a semiconductor device having an internal power supply circuit capable of supplying stable internal power supply voltage while not increasing layout area. A differential amplifying circuit in a voltage down converter controls potential level V.sub.OUT of the drain of transistor P14 such that it attains the reference potential V.sub.REF. If the potential V.sub.OUT increases, the gate potential of transistor N12 increases because of coupling function of a capacitance C2, and the transistor is rendered conductive. Thus the potential level V.sub.OUT is pulled down. By contrast, if the potential level V.sub.OUT lowers, transistor P12 is rendered conductive, and the potential level V.sub.OUT is pulled up.

REFERENCES:
patent: 3349336 (1967-10-01), Luna
patent: 3536958 (1970-10-01), Sondermeyer
patent: 4649291 (1987-03-01), Konishi
patent: 4950976 (1990-08-01), Wagoner
patent: 5264743 (1993-11-01), Nakagome et al.
patent: 5528190 (1996-06-01), Honnigford
patent: 5534817 (1996-07-01), Suzuki et al.

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