Package and thermal path
The 8-SON (3x3) with exposed pad is the same footprint as many other 8-pin SON gate drivers, so a layout swap is straightforward. The exposed pad must be soldered to a copper plane — without it, the 125°C junction rating is academic. A via array under the pad to an inner ground plane is standard practice.
The TPS28225DRBT is listed as Active with ROHS3 compliance. No end-of-life notice or last-time-buy window is in the record.
