Part 3.15: Power Supply - Alinx AX7A035 User Manual

Part 3.15: Power Supply

The power input voltage of the AX7A035 FPGA development board is
DC12V. The development board also supports power from the PCIe interface.
At the same time, it supports direct power from the ATX chassis power supply
(12V).
Powered by
Power adapter
Powered by
PCIe Interface
Figure 3-15-1: Power supply method for AX7A035 FPGA Board
The FPGA carrier board converts +12V voltage to +3.3V and +1.8V
through two DC/DC power chip MP1482; one DC/DC power chip TPS54620
converts +12V voltage into +5V; one LDO power chip TPS74701 converts the
+1.8V voltage to +1.2V. In addition, the +5V power supply on the carrier board
supplies power to the core board through the inter-board connector. The power
supply design on the carrier board is shown in Figure 3-15-2.
Figure 3-15-2: Power supply Schematic on the Carrier Board
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ARTIX-7 FPGA Development Board AX7A035 User Manual
CN1
PCIe
+12V
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