LT3744

Features n Ideal for Driving Up to 40A LEDs n Up to 3000:1 PWM Dimming n 20:1 Analog Dimming n ±3% Current Regulation Accuracy n ±3% Voltage Regulation Accuracy n Unique Inverting Buck-Boost Topology Allows Grounded Heat Sink to Be Used for RGB LEDs n 3.3V to 36V Input Voltage Range n Peak Current Mode with DC LED Current Sensing n Open and Shorted LED Protection and Fault Reporting n Floating LED Driver Allows Single Power Solution to Drive Multicolor LEDs or Single LED with Three Different Regulated Currents n Thermally Enhanced 5mm × 6mm QFN 36-Lead Package Applications n LED Driver for DLP Projectors n Heads-Up Displays n High Power LED LT3744 High Current Synchronous Step-Down LED Driver Description The LT®3744 is a fixed frequency synchronous step-down DC/DC controller designed to drive a LED load at up to 20A continuous or 40A pulsed. The peak current mode controller will maintain ±3% LED current regulation over a wide output voltage range, from VEE to VIN. By al...