Semiconductor integrated circuit for a stabilized power supply c

Details Semiconductor integrated circuit for a stabilized power supply c Semiconductor integrated circuit for a stabilized power supply c

1993-07-02

1994-10-11

Stephan, Steven L.

Electricity: power supply or regulation systems

Output level responsive

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

323313, 323315, 363147, 257467, G05F 146

Patent

active

053550781

ABSTRACT:
A stabilized power supply circuit is prevented from being affected by a heavy load. A transistor (Q.sub.1) having a smaller emitter area, a transistor (Q.sub.2) having a larger emitter area, and an output transistor (Q.sub.3) are incorporated in an IC. The distance (L.sub.1) between the first transistor (Q.sub.1) and the output transistor (Q.sub.3) is longer than the distance (L.sub.2) between the second transistor (Q.sub.2) and the output transistor (Q.sub.3).

REFERENCES:
patent: 4524318 (1985-06-01), Burnham et al.
patent: 4731574 (1988-03-01), Melbert
patent: 5243271 (1993-09-01), Lommers

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