! latexfontsize="scriptsize" | Voltage domains legend
! latexfontsize="scriptsize" | Nominal voltage[V]
! latexfontsize="scriptsize" | Notes
|-
|2.5
|Voltage generated by the internal PSU. See [[AXEL_Lite_SOM/AXEL_Lite_Hardware/Power_and_Reset/Power_Supply_Unit_(PSU)_and_recommended_power-up_sequence | Power Supply Unit (PSU)]] wiki page