I want to know the part numbers of this IC.

Thanks,

[![enter image description here][1]][1]


  [1]: https://i.sstatic.net/Olqfy7Y1.jpg

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[![enter image description here][2]][2]


  [2]: https://i.sstatic.net/CQG8pNrk.jpg


As I measured in PCB, If this IC marking 302 below is a P Mosfet channel, this schematic will be the picture. I'm not sure if this part number is correct or not.

In this picture, Vout is output from AD5390BCPZ-5 (IC DAC), and I think the schematic is a buffer for Vout. 

So can anyone help me, please?