A method of managing a plurality of hysteresis DC-DC buck converters arranged to provide a plurality of output voltages with respective points of loads (19_1, 19_2) or to supply a common supply current to a common load (19), each of the hysteresis DC-DC downconverter (10, 10, 10) comprises a hysteresis comparator (11) operating in accordance with a corresponding hysteresis window (V, V) which is operative in a given transducer (10) of the plurality of transducers (10 10, 10) checking (105) whether a corresponding feedback voltage (V) reaches a lower threshold (V) to enter a turn-on period (T) of the converter (10) (111), the method including the following operations when the process of checking (105) if a corresponding feedback voltage (V) reaches a lower threshold (V) indicates that the lower threshold (V) has not been reached i st, detecting (115; 115), whether at least one other transducer (102) of the plurality of transducers (10; 10, 10) has entered a corresponding turn-on period (T) and, if so, entering a hysteresis voltage adjustment process (116; 120; 12) includes the amplitude of the hysteresis window (V) of at least the given transducer (102) by a given amount (ΔV) by reducing the lower threshold (V) of the hysteresis window (V).
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