Hi,
I am using a power mux TPS2115A which will be used to switch between two different 3V3 voltages.
I am not sure what happens when both the inputs i.e. IN1 and IN2 are at the same voltage, which channel will be selected?
The datasheet answers your question implicitely by specifying a hysteresis for the voltage comparator. Respectively the state for equal input voltage is undefined, depending on the sign of previous voltage difference > Vhyst.