A method of operating a switched-mode power supply to supply current at a regulated voltage (VOUT) to a load, the method comprising: in response to a representation of a voltage error of the regulated voltage (VOUT) exceeding a first threshold (VBURST), switching an inductive switching circuit at a static first switching frequency in a first continuous switching mode, the first switching frequency initiating switching cycles of the inductive switching circuit, to supply the current to the load; in response to the representation of the voltage error being less than the first threshold (VBURST), operating the inductive switching circuit in a second continuous switching mode at a second switching frequency less than the first switching frequency to supply the current to the load, the second switching frequency initiating switching cycles of the inductive switching circuit, wherein the second switching frequency is reduced as a function of the voltage error; generating a slope compensation ramp signal (VSLOPE), responsive to the second switching frequency, including being responsive to a variation of the second switching frequency during the second continuous switching mode; controlling an inductor peak current (IL_PEAK) in each switching cycle of the inductive switching circuit based at least on the slope compensation ramp signal (VSLOPE); and wherein during the second continuous switching mode, the slope compensation ramp signal (VSLOPE) is adapted responsive to the variation of the second switching frequency being reduced as a function of the voltage error, in such a way that the inductor peak current (IL_PEAK) is controlled at a constant target peak current, and as the load current decreases, the switching frequency is reduced, and, in turn, the inductor current valley is reduced, such that the average inductor current can be reduced to maintain the balanced current control. in response to a representation of a voltage error of the regulated voltage (VOUT) exceeding a first threshold (VBURST), switching an inductive switching circuit at a static first switching frequency in a first continuous switching mode, the first switching frequency initiating switching cycles of the inductive switching circuit, to supply the current to the load; in response to the representation of the voltage error being less than the first threshold (VBURST), operating the inductive switching circuit in a second continuous switching mode at a second switching frequency less than the first switching frequency to supply the current to the load, the second switching frequency initiating switching cycles of the inductive switching circuit, wherein the second switching frequency is reduced as a function of the voltage error; generating a slope compensation ramp signal (VSLOPE), responsive to the second switching frequency, including being responsive to a variation of the second switching frequency during the second continuous switching mode; controlling an inductor peak current (IL_PEAK) in each switching cycle of the inductive switching circuit based at least on the slope compensation ramp signal (VSLOPE); and wherein during the second continuous switching mode, the slope compensation ramp signal (VSLOPE) is adapted responsive to the variation of the second switching frequency being reduced as a function of the voltage error, in such a way that the inductor peak current (IL_PEAK) is controlled at a constant target peak current, and as the load current decreases, the switching frequency is reduced, and, in turn, the inductor current valley is reduced, such that the average inductor current can be reduced to maintain the balanced current control.