TPS54335A: tps54335a output current capacity and efficiency under 85℃ condition

Hi team,

My customer wants to use tps54335A in a equipment on the high speed train. So they care about the performance under high temperature condition very much. So could you please help on below question:

1. what is the maximum constant output current under 85℃? Is it still 3A as datasheet states? Do we have a curve between the maximum output current and temperature?

2. what is the efficiency under 85℃? Do we have a curve between the efficiency and the temperature?

Thanks

Best regards

Wayne