How to build a 2.5A constant current?

I used to make some constant current supplies such as LM3407, LM3406 driver but all of them below 1.5A. Is there a TI's IC met 2.5A or combinable ICs helped me do this?

I'm designing a Cree-XML2 Drivers that need a 3A constant current. I just need a greater 2.5A supply for the project.