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. 06, 2016
Filed:
Nov. 26, 2014
Taiwan Semiconductor Manufacturing Company Limited, Hsinchu, TW;
Po-Hsiang Lan, Taipei, TW;
Taiwan Semiconductor Manufacturing Company, Hsinchu, TW;
Abstract
A low dropout regulator and system for supplying power to a card are provided. A low dropout regulator includes a reference voltage supply circuit configured to output a reference voltage based on an input supply voltage. An error amplifier has a first input, a second input, and a single-ended output. The first input is coupled to the reference voltage, and the second input is coupled to an output node of the low dropout regulator via a first feedback resistor. A pass transistor includes a control electrode connected to the single-ended output of the error amplifier, a first electrode connected to a ground node, and a second electrode connected to the output node of the low dropout regulator. A first power supply terminal of the error amplifier is connected to the output node, and the output node provides an output voltage of the low dropout regulator that powers the error amplifier.