DNA 20 help!!!

[Ness42]

sorry I am a Noob here. so i have a question in this picture can someone tell me what is that chip under U6 in this board. one of my atomizers keeps burning it and i already used and old vamo v5 to fix it but it burned again. the board works but there is no power to the 510 connection. were could i find some of this ones to fix my dna 20. thank you.
a. ​

 

[Topwater Elvis]

I'd think if a certain atty keeps burning something on the board you'd stop using it.
Could be an indication of an unsafe condition occurring.

The picture is too blurry for me to make heads or tails out of it.
Maybe Radio shack, Frys, fastech of an electronics store of some sort.