2.1.5 External 3.3V Header (J5)

This 2-pin header allows for an external 3.3V supply. Populate R19 with a 0-ohm resistor and leave R54 unpopulated (DNP) to use the external 3.3V supply. See the pin details here.

Table 2-6. Pin Description - Header J5
Pin No.Signal NamePin Description
1+3.3V_EXTExternal 3.3V Supply
2GNDGround