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:
Mar. 10, 2009
Filed:
Nov. 17, 2006
George Chu, Fremont, CA (US);
Martin Alter, Los Altos, CA (US);
George Chu, Fremont, CA (US);
Martin Alter, Los Altos, CA (US);
Micrel, Inc., San Jose, CA (US);
Abstract
A low dropout (LDO) regulator device includes an LDO regulator integrated circuit housed in a 4-pin quad flat no-lead (QFN) package where the exposed die paddle is used as the ground terminal. The LDO regulator integrated circuit is formed on a semiconductor substrate. The 4-pin QFN package includes four perimeter lands connected to the input terminal, the output terminal, the enable terminal and the bypass terminal of the LDO regulator integrated circuit. The die paddle is to be electrically connected to a ground potential to allow the ground current of the LDO regulator integrated circuit to flow through the substrate and the die paddle of the 4-pin QFN package.