The FD2004 is a digital DC-DC controller designed to work with the FD1505 MOSFET driver IC. Current sharing allows multiple devices to be connected in parallel to source loads with very high current demands. Adaptive performance optimization algorithms improve power conversion efficiency across the load range. The Digital-DCTM technology enables a blend of power conversion performance and power management features. The FD2004 is designed to be a flexible building block for DC power and can be easily adapted to designs ranging from a single-phase power supply operating from a 4.5V input to a multi-phase supply operating from a 12V input. The FD2004 eliminates the need for complicated power supply managers as well as numerous external discrete components. Operating features can be configured by pin-strap / resistor selection or through the SMBus serial interface. The SMBus is also used for communication with a host controller. For inter-device communication with other Digital-DC devices, the single-wire DDC bus is used.