I just came across the nnew TI LMG5200 and thought it would be worth sharing here if anyone is looking for a potentially great output stage for a low/medium power class d design. The only downside is that they are quite expensive!
LMG5200 | GaN FET Modules | Gallium Nitride (GaN)* Solutions | Description & parametrics
LMG5200 | GaN FET Modules | Gallium Nitride (GaN)* Solutions | Description & parametrics