Hi Weilong,

Thanks for your interest in the TPS55340. 

Apologies, but I cannot find the PCB design file of the boost EVM. However, what I can give you are the design files for the TPS55340 reference designs as linked here:

This reference design is for 11V @ 1.2A output

The second reference design is for 15V @ 1A output.

Thanks,

Richard