I am the CTO of Manhattan 2 (www.manhattan2.orge are developing dc-to-dc converter electronics that will be embedded into solar pv material, as described in the below project description.
http://www.ma2.life/doc/research/ma2/BiPV_and_LiPV_Development_Initiative_Ma2.pdf
All source code and schematics are free and open (we give it away to encourage utilization).
Perhaps this would be a good reference design for ti?
We calculate we could use billions of ti parts.