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:
Jul. 04, 2017
Filed:
Aug. 31, 2016
Xilinx, Inc., San Jose, CA (US);
Sing-Keng Tan, San Jose, CA (US);
Wenyi Song, San Jose, CA (US);
XILINX, INC., San Jose, CA (US);
Abstract
An example a voltage regulator includes: a bias circuit coupled to an output node; a first operational amplifier having a first input coupled to the output node, a second input coupled to a reference voltage node, and an output coupled to a first node; a second operational amplifier having a first input coupled to the output node, a second input coupled to the reference voltage node, and an output coupled to a second node; an output transistor coupled between the output node and a ground node, the output transistor including a gate; first, second, and third stacked transistor pairs each serially coupled between the output node and the ground node, each transistor of the first, second, and third stacked transistor pairs including a gate; and switch circuits configured to selectively couple: the gates of the first and second stacked transistor pairs to the second node; and the gate of the output transistor to the first node.