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:
Aug. 30, 2022
Filed:
Feb. 04, 2021
Samsung Electronics Co., Ltd., Suwon-si, KR;
Samsung Electronics Co., Ltd., Gyeonggi-do, KR;
Abstract
An LDO regulator includes an error amplifier, a power transistor, a monitoring circuit and/or an adaptive pole adjusting circuit (APAC). The error amplifier compares a reference voltage and a feedback voltage to generate a first error voltage based on the comparison. The power transistor including a gate coupled to an output terminal of the buffer, regulates an input voltage based on a second error voltage which is generated based on the first error voltage to provide an output voltage to an output node. The monitoring circuit, connected to the output terminal of the buffer in parallel with the power transistor, generates a control voltage associated with a load current. The APAC, connected between the output terminal of the error amplifier and the ground voltage, selectively connects an adjusting capacitor between the output terminal of the error amplifier and the ground voltage in response to the control voltage.