A circuit comprising: - a charge pump (CP) with an input voltage (V R ) and an output voltage (V CP ) which is a multiple N of the input voltage (V R ), the charge pump (CP) having a clock input (CLK), - an input stage with a reference terminal for receiving a reference voltage (V REF ) and an output terminal coupled to the charge pump (CP) for applying the input voltage (V R ) to the charge pump (CP), - at least one output capacitance (C OUT ) coupled to the charge pump (CP) and chargeable to an output voltage (V OUT ) of the circuit, wherein the input stage comprises: - a first differential feedback input having a first terminal coupled to the reference terminal, a second terminal coupled to the output (V CP ) of the charge pump (CP) and a first output terminal, - a second differential feedback input having a first terminal coupled to the reference terminal, a second terminal coupled to the output capacitance (C OUT ) and a second output terminal, and - a summing node coupled to the first and second output terminal of said first and second differential feedback input in such a way that the input voltage (V R ) applied by the input stage to the charge pump (CP) is a function of the feedback signals on said first and second differential feedback input of the input stage , the circuit comprising: - a feedback network comprising a first feedback loop for feeding back the output voltage (V CP ) of the charge pump (CP) towards the first differential feedback input of the input stage and a second feedback loop configured to act on the second differential feedback input of the input stage for maintaining a fixed offset between the output voltage (V CP ) of the charge pump (CP) and the output voltage (V OUT ) of the circuit. - a charge pump (CP) with an input voltage (V R ) and an output voltage (V CP ) which is a multiple N of the input voltage (V R ), the charge pump (CP) having a clock input (CLK), - an input stage with a reference terminal for receiving a reference voltage (V REF ) and an output terminal coupled to the charge pump (CP) for applying the input voltage (V R ) to the charge pump (CP), - at least one output capacitance (C OUT ) coupled to the charge pump (CP) and chargeable to an output voltage (V OUT ) of the circuit, - a first differential feedback input having a first terminal coupled to the reference terminal, a second terminal coupled to the output (V CP ) of the charge pump (CP) and a first output terminal, - a second differential feedback input having a first terminal coupled to the reference terminal, a second terminal coupled to the output capacitance (C OUT ) and a second output terminal, and - a summing node coupled to the first and second output terminal of said first and second differential feedback input in such a way that the input voltage (V R ) applied by the input stage to the charge pump (CP) is a function of the feedback signals on said first and second differential feedback input of the input stage , - a feedback network comprising a first feedback loop for feeding back the output voltage (V CP ) of the charge pump (CP) towards the first differential feedback input of the input stage and a second feedback loop configured to act on the second differential feedback input of the input stage for maintaining a fixed offset between the output voltage (V CP ) of the charge pump (CP) and the output voltage (V OUT ) of the circuit. <EOS>