Using low voltage regulator to supply power to a source-biased power domain

A common (ground) of a low voltage regulator is connected to a virtual common (ground) of an integrated circuit device that is also connected to transistor sources but isolated from a true ground connected to the substrate of the integrated circuit device. The regulated output voltage from the low v...

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Bibliographic Details
Main Authors YUENYONGSGOOL YONG, SESSIONS D C, MUHA JAMES, WILSON TIM
Format Patent
LanguageEnglish
Published 03.03.2015
Subjects
BASIC ELECTRIC ELEMENTS
CONTROLLING
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
INFORMATION STORAGE
PHYSICS
REGULATING
SEMICONDUCTOR DEVICES
STATIC STORES
SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
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Summary:A common (ground) of a low voltage regulator is connected to a virtual common (ground) of an integrated circuit device that is also connected to transistor sources but isolated from a true ground connected to the substrate of the integrated circuit device. The regulated output voltage from the low voltage regulator rises the same as the virtual ground voltage rises when back-biased sufficient to reduce leakage current to an acceptable level in a given process technology. Therefore, the output of the low voltage regulator will maintain a normal operating voltage for the logic during a power saving back-biased condition.
Bibliography:Application Number: US201213409440