Texas Instruments Incorporated
Charge pump circuit and auxiliary power supply

Abstract:

A charge pump circuit includes input and output charge pump stages. Each charge pump stage includes a respective voltage input, a respective voltage output, a respective first clock input and a respective second clock input. The voltage input of the input charge pump stage is coupled to a voltage supply terminal. The voltage output of the output charge pump stage is coupled to an output of the charge pump circuit. A clock driver circuit includes a first clock output, a second clock output, a first bias input and a second bias input. The first clock output is coupled to the first clock inputs, and the second clock output is coupled to the second clock inputs. A body bias circuit includes first and second bias outputs. The first bias output is coupled to the first bias input, and the second bias output is coupled to the second bias input.