Digilent Genesys ZU Reference Manual page 13

Figure 1.2.1: Genesys ZU power distribution network and supply sequencing
Note: The VCC0V9_MGTAVCC* and VCC0V9_VCU* rails are not used on the Genesys ZU‐3EG variant.
When the board is turned on, the 12V input voltage provided by the bundled PCIe ATX supply is filtered
and fed to the series MOSFETs of the protection circuit. The LM5060 IC monitors the input voltage and
the current drawn by the entire board. If an input overvoltage/undervoltage or an overcurrent condition
is detected, the LM5060 isolates the VCC12V0 net from the external supply by turning off the series
MOSFETs.
During normal operation the MOSFETs provide a low impedance path and the VCC12V0 net is correctly
biased with 12V. This voltage serves both as output rail for the FMC port and power input for
downstream voltages.
Table 1.2.1 describes the list of power supply rails implemented on Genesys ZU. This table can be used
to estimate the available power budget for a given project.
Table 1.2.1: Genesys ZU power rails
Voltage Rail Generated from Min/Typ/Max Voltage
Max
Used for
current