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i need help to know which parts are this

Other Parts Discussed in Thread: TPS730, SN74LVC1T45, TPS793

hello im Jesus, from spain i have a mainboard with a problem, two of its components has burned out.the manoufacturer of the mainboard has closed this line of business and dont repair it anymore. one of the components has written TAR and seems to be a sot 23-5, but here "http://www.ti.com/packaging/docs/partlookup.tsp#divline" there are more than noe components with the marking TAR.the other one has written PGY and seems to be a sot 23-6 and occurs the same(more than one components with the same marking). i will upload some photograps from the mainboard and the components,thank you very much for your help