If you need RGB led driver with more power check out this Mosfet RGB LED Driver project. The uses logic level ‘N’ channel MOSFETs (STP36NF06) which able to control LED arrays or lamps up to 5 amps per channel without heat sinks. The main part in this project is PIC 12F629. It has function as PMM generator to control RGB LED brightness and control custom sequences and effects of the LED. The circuit will operate from a supply voltage in the range 9 to 24 volts.
Project Detail and Documentation