The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 18, 2006
Filed:
Aug. 06, 2003
Applicant:
Ronald Neal Dow, San Jose, CA (US);
Inventor:
Ronald Neal Dow, San Jose, CA (US);
Assignee:
National Semiconductor Corporation, Santa Clara, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 3/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
A low dropout voltage regulator. The regulator comprises a bandgap reference circuit and first and second transistors coupled in parallel. The parallel transistors form the input of an operational amplifier, coupled to and providing substantially no load to the bandgap reference circuit. The bandgap reference circuit is coupled to the output of the integrated circuit low dropout voltage regulator. As a beneficial result, the bandgap reference works from a regulated output and has substantially no load. Consequently, the voltage output of the present invention is highly stable.