LM3405: Designing with LM3405 as a constant current valve driver

Hi Team,
We want to use a constant current buck converter driver in one of our products.
We are planning to use LM3405 as the driver.
The purpose is to drive a shape memory valve of rated power 0.3W.
The resistance R1 will be 0.8 Ohm, so the maximum current will be 0.256A.
We have 7 such valves, so is there any single-chip constant current drivers that can drive all 7 valves?.
All valves can be controlled independently