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:
Dec. 13, 2005
Filed:
Feb. 27, 2004
Dolly Y. Wu, Dallas, TX (US);
David Grant, Dallas, TX (US);
Dolly Y. Wu, Dallas, TX (US);
David Grant, Dallas, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
The present application describes a frequency compensation scheme for a linear voltage regulator circuit, or its special case, a low-drop out voltage regulator (LDO). According to one embodiment, the frequency compensation scheme includes two circuits, an inner loop compensation circuit (), and a circuit () at the output in parallel with one of the resistors of the output voltage divider (). These two compensation elements () are not interdependent and may be adjusted separately to provide more optimal frequency compensation. Advantages include smaller compensation circuit elements, die or board area savings, better phase margin over process technology variations and operating conditions, and ease of design adjustment.