For the dimensions of the thermal pad of the RHL (QFN) package variant of TPS56428, the datasheet page 25 reads, "THERMAL PAD: SIZE AND SHAPE SHOWN ON SEPARATE SHEET".
A: Can you please either tell us where the separate sheet is, or provide the dimensions here?
B: Can you please add this information to the datasheet to make it much easier to find?
Thanks!
-Steve