The right power and timing solutions are very important for artificial intelligence (AI) accelerator cards. Generally, the current is above 50A and core power is below 1V and is suitable for a multiphase power supply. AI accelerator cards utilize a PCIe interface with many channels so a PCIe clock generator and clock buffer are needed. Renesas delivers leading power and clocking solutions for AI acceleration. High-efficiency power ICs save PCB space and mitigate heat radiation for kW level power consumption. High-performance programmable VersaClock® 7 clock generators support PCIe Gen 5/6 spread spectrum off(on), ~150fs RMS 12kHz to 20MHz clock gen integer, and four universal output pairs: LVPECL, LVDS, HCSL, or CMOS outputs. The RC19xxA is a PCIe Gen 5/6 fanout buffer with up to 24 outputs.

System Benefits​:

  • High-performance power attach for core and peripherals
  • Customizable clock tree design for ASIC or FPGA platforms




  • Accelerators for GPU, ASIC, artificial intelligence
  • Voltage regulation (VR) for microprocessors' core, graphic and memory
  • High-density VR for server, networking and cloud

Winning Combinations Interactive Diagram

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4:3 ratio Sheet.1 Sheet.2 Sheet.3 Sheet.4 cn310 cn310 CN310 Sheet.25 Sheet.26 Accelerator Cards Accelerator Cards Accelerator Cards ATX 12V ATX 12V ATX 12V Buck 3 Buck Buck ASIC ASIC ASIC Digital Power Digital Power Digital Power SPS SPS SPS VersaClock 7-2 VersaClock 7 VersaClock 7 Sheet.41 Sheet.43 Sheet.44 Sheet.45 Sheet.46 Sheet.47 Sheet.48 Sheet.49 Sheet.50 Sheet.51 Sheet.52 Sheet.53 Sheet.54 Sheet.55 Sheet.56 Sheet.57 Sheet.58 Sheet.59 Sheet.60 Sheet.61 Sheet.62 Buck 1 Buck Buck Buck 2 Buck Buck ATX 12V ATX 12V ATX 12V LDO LDO LDO VersaClock 7-1 VersaClock 7 VersaClock 7 PCIe Buffer PCIe Buffer PCIe Buffer FPGA FPGA FPGA CPU CPU CPU Motherboard Motherboard Motherboard Sheet.16 Sheet.17 Sheet.18 Sheet.19 Sheet.20 Sheet.21 Sheet.22 Sheet.23 Sheet.27 Sheet.28 Sheet.29 Sheet.30 Sheet.31 Sheet.32 Sheet.33 Sheet.63 Sheet.68 1.8V/400mA 1.8V/400mA 1.8V/400mA 3.3V/3Amax 3.3V/3Amax 3.3V/3Amax 0.95V/3Amax 0.95V/3Amax 0.95V/3Amax 1.2V/3Amax 1.2V/3Amax 1.2V/3Amax 2.5V/3Amax 2.5V/3Amax 2.5V/3Amax 3.3V/3Amax.75 3.3V/3Amax 3.3V/3Amax 100Mhz 100Mhz 100Mhz 33.83Mhz 33.83Mhz 33.83Mhz 156.25Mhz 156.25Mhz 156.25Mhz 100 Mhz 100 Mhz 100Mhz 100 Mhz 100 Mhz 100Mhz 100 Mhz 100Mhz 100Mhz PCIe PCIe PCIe 3.3V/3A 3.3V/3A 3.3V/3A 1.2V/110A 1.2V/110A 1.2V/110A 0.9V/1800A 0.9V/1800A 0.9V/1800A 156.25 Mhz 156.25 Mhz 156.25 Mhz 33.33 Mhz 33.33 Mhz 33.33 Mhz 1.8V/3A 1.8V/3A 1.8V/3A Sheet.89 100 Mhz 100Mhz 100Mhz PCIe PCIe PCIe
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