A converter module for use as a phase in a multiphase DC-DC converter having a data bus for transferring current-sharing information is provided. The converter module comprises a power stage and a controller. The power stage comprises an input for receiving an input voltage and an output for providing an output voltage and an output current. The controller is coupled to the power stage to receive a feedback signal from the power stage. The controller further comprises a data bus port configured to receive the current-sharing information from the data bus and provide updated current-sharing information to the data bus. The controller is also configured to: (1) determine a current level being provided by said power stage, (2) update the current-sharing information based upon the determined current level, (3) determine a current error based upon the determined current level and the updated current-sharing information, (4) control an operation of said power stage based upon the current error, and (5) provide the updated current-sharing information to the data bus. In another embodiment, a multiphase DC-DC power converter comprising a first phase, a second phase, and a data bus is provided. In yet another embodiment, a method of sharing current information between phases of a multiphase DC-DC converter is provided.