Product Details

2-String × 20mA Driver for Seven White LEDs/String


The LT3909 is a 2-string × 50mA LED driver with a fixed 2MHz step-up DC/DC converter capable of driving up to 36V of LEDs. Each LED string contains an accurate high-side current source with ±1.8% current matching. Output voltage adapts to variations in LED VF for optimum efficiency.