A switching converter having a voltage input, a voltage output and a transistor connected between the voltage input and the voltage output, the switching converter including a control circuit comprising: a gate driver having an input, a first voltage supply input, a second voltage supply input and an output operable to be connected to a control terminal of the transistor; a bootstrap capacitor connected between the first voltage supply input and the second voltage supply input; and a charge pump having an input operable to be connected to the voltage input and an output connected to the first voltage supply input.