What about STCS2ASPR? http://www.mouser.com/ProductDetail/STMicroelectronics/STCS2ASPR/?qs=sGAEpiMZZMsE420DPIasPoxeLwn8SKwbvNs8EYaD8YU%3D
Rated to 2 amps constant current sourcing... and can handle the voltage to run some in series plus has PWM pin :).