Anyway, keep in mind that these drivers are usually designed for leds ..... i mean, voltage regulated, not constant current ..... or, at maximum, fixed current presets, but not with controls.
If it was constant current, it will have a RSENSE, and cause TPS63000 have a 500mV FB, at 1A the RSENSE must dissipate 500mW (this means, at least 1W or more SMD resistor) ..... and i don't see it, in that pics.