Original Question:

I would have like to use TLV62080 with a 3.3Vin and 0.95V out.

But I would have like to connect the pull-up resistor to the 3.3Vin instead of the TLV62080's output. Can I do that?

On the datasheet it is mentioned that we are recommending to connect the pull-up resistor to the TLV62080's output.

Verified Answer: 

The pull-up resistor can be connected to any voltage within the absolute maximum ratings for the device.  The recommendation to pull it up to the output is to properly determine the state of the output voltage when the TLV62080 is off.  If the resistor is pulled up to Vout, the output voltage would presumably be low when the device was off and thus the PG voltage would also be low.  This is the correct state.

But if it is connected to another rail, that rail might be up and active even though the TLV62080 is off.  Because the PG pin is high impedance when the TLV62080 is off, now we get the wrong state for PG--it would be pulled up high even though the TLV62080 is off and its output is not up.