A device comprises an active-pull-up stage and an active-pull-down stage. The device receives at least one reference voltage and provides an regulated output voltage to at least one load. The active-pull-up and active-pull-down stages are adapted to source or sink a current delivered to or received from the at least one load to regulate the output voltage provided to the at least one load. Other embodiments and methods are also claimed and described.

 
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> Step-up/down voltage chopper

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