Globalfoundries U.S. Inc.

Mitra Sen Singh

Siva Kumar Chinthu

Siva Kumar Anala

Disclosed is a charge pump circuit including: a single primary charge pump stage or multiple primary charge pump stages connected in series; a pass transistor connected between an output node of the primary charge pump stage (or of the last of the multiple primary charge pump stages, if applicable) and an output terminal; and a supplementary charge pump stage. The supplementary charge pump stage receives the same input voltage as the primary charge pump stage (or the same input voltage as the last of the multiple primary charge pump stages, if applicable) and controls the gate of the pass transistor to reduce ripple at the output terminal. A capacitive load can also be connected to the output terminal to reduce ripple and the size of the capacitive load can be selected to achieve a desired balance between the amount of ripple and circuit size.

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Sonbhadra, India

Mitra Sen Singh