I have two LDOs that convert different input voltages into the same voltage. I'm not sure how to safely connect the outputs together so they become the same signal and can be both be used to power the board, is it as simple as just connecting the outputs together since the voltage is the same? Thanks
It is not at all recommended to parallel the output of the two LDOs together. The one with the higher voltage output will try to supply the load - that is if you can keep them stable and not get oscillation happening.
A better method will be to use one LDO and diode OR the input sources into the LDO. Then the higher voltage supply will contribute.