PGA280: Does PGA280AIPWR has die markings?

Hello,

Are you referring to marking on the silicon die itself?  We don't disclose any die marking information. 

Are you concerned that this device is counterfeit?  If so, please check our counterfeit website for further information to proceed:

https://www.ti.com/support-quality/quality-policies-procedures/anti-counterfeit.html

Regards,
Mike