LM3433 Datasheet | National Semiconductor

LM3433 mon Anode Capable High Brightness LED Driver with High Frequency Dimming .. November 26, 2007 LM3433 mon Anode Capable High Brightness LED Driver with High Frequency Dimming General Description The LM3433 is an adaptive constant on-time DC/DC buck (step-down) constant current controller (a true current source). The LM3433 provides a constant current for illuminating high power LEDs. The output configuration allows the anodes of multiple LEDs to be tied directly to the ground referenced chassis for maximum heat sink efficacy. The high frequency capable architecture allows the use of small external passive ponents and no output capacitor while maintaining...