The ADP3207A is a high efficiency, multiphase, synchronous, buck-switching regulator controller optimized for converting notebook battery voltage into the core supply voltage required by high performance Intel processors. The part uses an internal 7-bit DAC to read voltage identification (VID) code directly from the processor that sets the output voltage. The phase relationship of the output signals can be programmed to provide 1-, 2-, or 3-phase operation, allowing for the  construction of up to three interleaved buck-switching stages. The ADP3207 uses a multimode architecture to drive the logic-level PWM outputs at a programmable switching frequency that can be optimized depending on the output current requirement. The part switches between multiphase and single-phase operation to maximize its effectiveness under all load conditions. In addition, the ADP3207 includes a programmable slope function to adjust the output voltage as a function of the load current. As a result, it is always best positioned for a system transient.