$5 NLHE STT: AA and the BTN

SB: 1,519 (12.7 bb)
BB: 2,353 (19.6 bb)
UTG: 546 (4.6 bb)
MP: 2,430 (20.3 bb)
CO: 2,551 (21.3 bb)
Hero (BTN): 4,101 (34.2 bb)

Preflop: Hero is BTN with :Ah: :Ac:
2 folds, CO raises to 240, Hero calls 240, 2 folds

Flop: (750) :Tc: (2 players)
CO bets 262, Hero raises to 690, CO fol

Flatting pre is fine here vs certain opponents, against fish I'm always 3Bing here.

Definitely just shove over on the flop. Your small raise looks extremely strong and SPR is 2. If your opponent has any Tx, overpair etc he will never fold to a shove.