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, 2023
Filed:
Aug. 12, 2021
Yoichi Takano, Hadano, JP;
Chuhei Terada, Isehara, JP;
Yoichi Takano, Hadano, JP;
Chuhei Terada, Isehara, JP;
MITSUMI ELECTRIC CO., LTD., Tokyo, JP;
Abstract
Disclosed is a semiconductor integrated circuit for a regulator for forming a low current consumption type DC power supply device. The semiconductor integrated circuit includes an output transistor, a control circuit, an operation control transistor and a soft start circuit. The output transistor is connected between an output terminal and a voltage input terminal to which a DC voltage is input. The control circuit controls the output transistor according to a feedback voltage of an output. The operation control transistor controls an operation state of the control circuit. The soft start circuit gradually changes a voltage applied to a control terminal of the operation control transistor and delays activation of the control circuit at a time of applying a power supply voltage to the voltage input terminal.