TPS51200-Q1: TPS51200QDRCRQ1 Part Marking

Part Number: TPS51200-Q1

Tool/software:

Hello, 

The datasheet for TPS51200QDRCRQ1 indicates that the part marking should be PSNQ. However, a recent shipment of these parts has the marking MNRSD, which I cannot find on the TI website. 

Can someone verify what MNRSD is? it does not show up on the part marking lookup.

Thank you!