I'm looking at the datasheet for the part and on p23 it shows the drawing for the DRC (S-PVSON-N10) package. I do not see a recommended footprint nor information on the size of the thermal pad. It mentions the thermal pad information is shown on a separate sheet yet I cannot find this anywhere.
I found a link to the package but it shows the same information, http://www.ti.com/general/docs/lit/getliterature.tsp?literatureNumber=MPDS117K&fileType=pdf
I downloaded the BXL CAD file and this doesn't show a thermal pad yet the device requires the thermal pad to be soldered to ground.