DC-DC voltage converter for converting a DC input voltage (U_in) to a predetermined DC output voltage (U_out), having: a comparison device, which is designed to provide a controlled variable based on a comparison of a value of the DC output voltage (U_out) of the DC-DC voltage converter with a prescribed setpoint voltage value (U_setpoint) for the DC output voltage (U_out); a correction device, which is designed to adjust a value of an input current (I_in) of the DC-DC voltage converter based on a previously determined correction function, and to output a value (I_in,corr) of the adjusted input current; a regulation device, which is designed to calculate a further controlled variable using the value (I_in,corr) of the adjusted input current and the prescribed setpoint voltage value (U_setpoint) for the DC output voltage (U_out); a computation device, which is designed to calculate a regulator value from the controlled variable of the comparison device and the further controlled variable of the regulation device; and a DC-DC voltage transducer, which is designed to convert the DC input voltage (U_in) to the DC output voltage (U_out) using the regulator value calculated by the computation device, characterized in that the regulation device is designed to adjust the further controlled variable of the feed-forward control adaptively to the input current (I_in) of the DC-DC voltage transducer, wherein, by adapting the correction function for the adjustment of the value of the input current (I_in), the feed-forward control can be adjusted in such a way that where possible no or only very little intervention by the controlled variable of the comparison device is required in stationary operation. a comparison device, which is designed to provide a controlled variable based on a comparison of a value of the DC output voltage (U_out) of the DC-DC voltage converter with a prescribed setpoint voltage value (U_setpoint) for the DC output voltage (U_out); a correction device, which is designed to adjust a value of an input current (I_in) of the DC-DC voltage converter based on a previously determined correction function, and to output a value (I_in,corr) of the adjusted input current; a regulation device, which is designed to calculate a further controlled variable using the value (I_in,corr) of the adjusted input current and the prescribed setpoint voltage value (U_setpoint) for the DC output voltage (U_out); a computation device, which is designed to calculate a regulator value from the controlled variable of the comparison device and the further controlled variable of the regulation device; and a DC-DC voltage transducer, which is designed to convert the DC input voltage (U_in) to the DC output voltage (U_out) using the regulator value calculated by the computation device, characterized in that the regulation device is designed to adjust the further controlled variable of the feed-forward control adaptively to the input current (I_in) of the DC-DC voltage transducer, wherein, by adapting the correction function for the adjustment of the value of the input current (I_in), the feed-forward control can be adjusted in such a way that where possible no or only very little intervention by the controlled variable of the comparison device is required in stationary operation.