A DC voltage converter is provided that cyclically converts an input-side
supply voltage into an output voltage. The converter includes an
inductive storage element connected between a terminal for the supply
voltage and, in a manner such that it is coupled via a first switch, a
reference potential terminal. The capacitively buffered output voltage
terminal is connected, via a second switch, between the inductive storage
element and the first switch. Provision is furthermore made of a third
switch, which is intended to selectively short the inductive storage
element that is connected in parallel and is controlled by a control
circuit. The control circuit is controlled, on the input side, by a
control voltage that is tapped off at the second terminal of the
inductive storage element.