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:
May. 07, 2013
Filed:
Jul. 13, 2012
BO Wang, Sunnyvale, CA (US);
Younghua Song, Cupertino, CA (US);
Bo Wang, Sunnyvale, CA (US);
Younghua Song, Cupertino, CA (US);
Marvell International Ltd., , BM;
Abstract
A low leakage power management system is provided. An external voltage domain is selectively coupled to the internal voltage domain of an integrated circuit according to demand for the functions provided by the integrated circuit. An external voltage Vis connected to the internal supply voltage plane of the integrated circuit when the integrated circuit is active. The external supply voltage Vis disconnected from the integrated circuit chip during idle periods. A plurality of switch cells may be provided for connecting the external voltage Vto the integrated circuit. A multi-step sequence is provided for connecting the external supply voltage Vto the chip's internal supply voltage plane to prevent excessive current from flowing through any individual switch cell.