The LM3429Q1MH/NOPB from Texas Instruments is a versatile and highly efficient controller designed for driving LEDs.

• Type: adaptive constant on-time DC/DC controller that is designed to drive a series of LEDs with a constant current
• Input voltage range: 4.5V to 75V
• Output current: adjustable output current of up to 0.5A
• Key features: high-side current sense
• Controller: high-frequency capable N-channel MOSFET controller
• Includes: cycle-by-cycle current limit, LED open/short protection, and thermal shutdown.
• Package: 20-pin HTSSOP PowerPad package