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:
Jun. 06, 2017
Filed:
Aug. 24, 2015
Applicant:
Rohm Co., Ltd., Ukyo-ku, Kyoto, JP;
Inventors:
Takeru Matsuki, Kyoto, JP;
Shinya Karasawa, Kyoto, JP;
Assignee:
ROHM CO., LTD., Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 3/158 (2006.01); H01L 23/00 (2006.01); H02M 1/08 (2006.01); H02M 1/32 (2007.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 3/158 (2013.01); H01L 23/00 (2013.01); H02M 1/08 (2013.01); H02M 1/32 (2013.01); H01L 2924/0002 (2013.01); H02M 2001/0006 (2013.01);
Abstract
The present invention relates to improving the reliability of the control IC of DC/DC converters. The present invention provides a control ICof a rectifier diode-type buck DC/DC converter. An N-channel DMOS switch transistor Mis disposed between an input terminal VCC and a switch terminal LX. A first diode Dand an N-channel DMOS low-side transistor Mare connected in series with and disposed between the switch terminal LX and a ground terminal GND.