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:
Mar. 02, 2004
Filed:
Mar. 25, 2002
Hubert J. Biagi, Tucson, AZ (US);
Rodney T. Burt, Tucson, AZ (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
An output stage compensation circuit and method for a low drop-out regulator configured to facilitate stable operation while providing output voltage and current to downstream circuit devices is provided. An exemplary low drop-out regulator is configured with an output stage compensation circuit including one or more segmented sense devices configured to drive one or more fixed current sources. Each segmented sense device is configured to compensate a suitable range of output current and to multiply the effect of associated compensation capacitors. The one or more segmented sense devices are configured to provide pole-zero compensation based on output current. Further, the current range of each segment can be overlapped. As a result, the stability of the low drop-out regulator is not dependent upon the output current requirements or the capacitance requirements of the downstream circuit.