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. 22, 2016
Filed:
May. 30, 2014
Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;
Chan-Hong Chern, Palo Alto, CA (US);
Tzu Ching Chang, Dali, TW;
Min-Shueh Yuan, Taipei, TW;
Yuwen Swei, Fremont, CA (US);
Chih-Chang Lin, San Jose, CA (US);
Chiang Pu, San Jose, CA (US);
Ming-Chieh Huang, San Jose, CA (US);
Kuoyuan Hsu, San Jose, CA (US);
Abstract
A voltage regulator circuit comprises an amplifier having an inverting input and a non-inverting input. The amplifier is configured to generate a control signal based on a reference signal at the inverting input of the amplifier and a feedback signal at the non-inverting input of the amplifier. The voltage regulator circuit also comprises an output node, a first power node, a second power node, and a driver that generates a driving current flowing toward the output node in response to the control signal. The driver is coupled between the first power node and the output node. A first transistor having a gate is coupled between the output node and the second power node. A bias circuit outside the amplifier supplies a bias signal to the gate of the first transistor, which is configured to operate in a saturation mode based on the bias signal supplied by the bias circuit.