The invention relates to a method for the operation of at least one light emitting diode (5, 6) by means of a switching regulator circuit (20) preferably designed as a step-down converter, to which an input voltage (VDC) is supplied and which provides, by means of at least one switch (1) clocked by a control unit (10), an output voltage (VOUT) for the supply of the at least one light emitting diode (5, 6) with current that is regulated to be constant at least in the temporal average, wherein the setpoint for the LED current is adjustable for the dimming, wherein the regulation parameters for the regulation loop for the LED current are changed depending on the operating mode of the switching regulator circuit (20).
