Ive come into this situation many many times recently and still Im really not sure how to handle this. Usually around a 2-3:1 chiplead and then this happens. I have a low to mid pocket pair, raise from the small blind and am reraised all in, or on the BB and am raised all in. Against a loose opponent who makes these all in moves often I call even with less of a chip lead, maybe this is a leak. However, against a tighter opponent I can typically assume [fairly accurately] that they have two overs and that I will be in a coinflip situation. Should I be calling here? If not, what should my chip lead be for me to be getting into these coinflips? What range would you be calling with here?

PokerStars No-Limit Hold'em Tourney, Big Blind is t30 (2 handed) converter

Hero (t2250)
Button (t750)

Preflop: Hero is BB with 5d, 5s.
Button raises to t750, Hero calls t720.

Flop: (t1500) Qs, 3h, 6d (2 players)

Turn: (t1500) Js (2 players)

River: (t1500) 5h (2 players)

Final Pot: t1500

{edited by courtiebee because the converter sucks}