OK I give up ... ask the experts!
Mechanical data sheet for DPR on LM5113 say's the thermal pad dim's are on a seperate sheet (that's not included).
http://www.ti.com/lit/ds/symlink/lm5113.pdf
The package document refers you back to the Product data sheet spec sheet....
http://www.ti.com/lit/ml/mpss046a/mpss046a.pdf
Where can one find the recommended thermal pad dims?
