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:
Oct. 25, 2022
Filed:
Apr. 22, 2020
Magnachip Semiconductor, Ltd., Cheongju-si, KR;
MagnaChip Semiconductor, Ltd., Cheongju-si, KR;
Abstract
A low dropout voltage regulator includes a differential amplifier configured to output an amplified voltage by comparing a feedback voltage with a reference voltage, a pass transistor configured to receive a power input voltage into a source terminal, the amplified voltage into a gate terminal, and output an output voltage into a drain terminal, distribution resistors connected between the drain terminal and the ground terminal, configured to generate the feedback voltage, and an inrush preventer, connected in parallel between the differential amplifier and the pass transistor, and configured to output a regulated amplified voltage into the gate terminal according to a control signal, wherein the inrush preventer comprises a determiner configured to output an enable signal that is turned on during an initial driving period, and a limiter configured to output the regulated amplified voltage according to the enable signal.