TPS2595: eFuse

Part Number: TPS2595

Tool/software:

Hi 

I am using TPS259571DSGT in my design by setting the current limit to 1.5A. But while testing the pcb in the lab with electronic load I am only able to connect 0.9A Load. If I go more than 0.9A the IC is getting hot and voltage drop. Can you please advice is there any problem in my design.