Tool/software: WEBENCH® Design Tools
I used TPS54331 to design the circuit, Vin = 24V, Vout = 13.5V, the expected current is 2.5A, When I test the performance of the design , I found when the current > 300mA , the output voltage value will go to 16V at the beginning and drop to 10V soon , when the current <300mA . It is OK .Now I use the sliding rheostat as the load My circuit and PCB design files are shown as below: 
I had checked the E2E , someone had post the similar query , the reason is diode can not fulfill the current requirement. So I had changed the Schottky diode to the component which the TI recommend (B340LA-13-F in webench system ). the performance is improved but the output is still unstable. Due to time constraints, please help me solve it as soon as possible.
