Sink/source output stage with operating point current control circuit for fast transient loading

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United States of America Patent

PATENT NO 9857817
SERIAL NO

15407284

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Abstract

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A voltage regulator is described. It includes an amplification stage to control a voltage level of a first gain node and of a second gain node in response to an input voltage, to activate a first and a second output stage, respectively. It further includes the first output stage to source a current at an output node of the voltage regulator from a first potential. The voltage regulator includes the second output stage to sink a current at the output node to a second potential. The voltage regulator includes a first operating point control circuit to set the voltage level of the first gain node such that a first maintenance current is sourced by the first output stage; and/or a second operating point control circuit to set the voltage level of the second gain node such that a second maintenance current is sunk by the second output stage.

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Patent Owner(s)

Patent OwnerAddress
DIALOG SEMICONDUCTOR (UK) LIMITEDTOWER BRIDGE HOUSE ST KATHARINE'S WAY LONDON E1W 1AA

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bhattad, Ambreesh Swindon, GB 54 304
Kronmueller, Frank Neudenau, DE 47 255

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