Digital dual loop 16-phase controller for nVIDIA AI servers and GPU applications XDPE1A2G7B digital dual loop 16 phase controller provides power for nVIDIA AI servers, workstations and high-end desktop GPU applications. Typical configurations of 16+0, 15+1, and up to 8+8 are supported. Command & monitoring functions are controlled through the PMBus and PWMVID interfaces, which supports dynamic voltage identification with 5 mV/step, output range up to 2.75 V, offset and trim resolution of 625 uV and accuracy better than 0.5%.