Abstract: High-performance computing has entered the post-exascale computing era, which poses stringent requirements for power supply technology for high-performance processors, including high power, low voltage, and fast response. However, current domestic digital multi-phase controllers and DrMOS power devices cannot meet the power supply requirements for high power at low voltage. To address this issue, a "1 drive 2" engineering design solution is proposed, which utilizes one phase of the digital multi-phase controller to drive two DrMOS per phase, thereby effectively doubling the power delivery capability. By using device selection, parameter setting, and feedback equalization techniques, the scheme controls ripple noise, dynamic response, and multi-phase equalization to ensure that the scheme meets engineering specification requirements. This paper details the principle and implementation of the scheme, and builds a verification system to verify the feasibility and effectiveness of the scheme.

Key words: high performance computing, BUCK circuit, digital muti-phase PWM controller, 1 drive 2