A local control-unit configured for use in a converter sub-unit of a multiphase DC-DC converter, the multiphase DC-DC converter comprising a plurality of converter sub-units arranged in parallel, each converter sub-unit having a respective inductor, a respective switching cell, and a respective local control-unit, the local control units being arranged in a logical daisy-chain, the local control-unit comprising: a state indicator indicative of whether the converter sub-unit is operable as a master sub-unit or a slave sub-unit; a second indicator indicative of whether the converter sub-unit is enabled or disabled; an enable input configured to receive an enable request; a wake-up output configured to send a wake-up request; a communication link input interface and a communication link output interface respectively configured to receive and to send master/slave information; and a further communication link input interface and a further communication link output interface, configured to both enable current balancing and phase interleaving with other enabled converter sub-units; and being adapted and configured to: in response to the respective local output current being higher than a first threshold, send a wake-up request requesting that the next converter sub-unit be enabled; and in response to (a) the state indicator being indicative that the local control-unit is operable as a slave sub-unit; (b) the respective local output current being lower than a second threshold, and (c) receiving master/slave information indicative that the next enabled sub-unit in the daisy-chain is a master sub-unit, disabling itself. a state indicator indicative of whether the converter sub-unit is operable as a master sub-unit or a slave sub-unit; a second indicator indicative of whether the converter sub-unit is enabled or disabled; an enable input configured to receive an enable request; a wake-up output configured to send a wake-up request; a communication link input interface and a communication link output interface respectively configured to receive and to send master/slave information; and a further communication link input interface and a further communication link output interface, configured to both enable current balancing and phase interleaving with other enabled converter sub-units; and being adapted and configured to: in response to the respective local output current being higher than a first threshold, send a wake-up request requesting that the next converter sub-unit be enabled; and in response to (a) the state indicator being indicative that the local control-unit is operable as a slave sub-unit; (b) the respective local output current being lower than a second threshold, and (c) receiving master/slave information indicative that the next enabled sub-unit in the daisy-chain is a master sub-unit, disabling itself. in response to the respective local output current being higher than a first threshold, send a wake-up request requesting that the next converter sub-unit be enabled; and in response to (a) the state indicator being indicative that the local control-unit is operable as a slave sub-unit; (b) the respective local output current being lower than a second threshold, and (c) receiving master/slave information indicative that the next enabled sub-unit in the daisy-chain is a master sub-unit, disabling itself.