LT3744 Overview
Key Specifications
Package: QFN
Mount Type: Surface Mount
Pins: 36
Max Voltage (typical range): 36 V
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.
Key Features
- Up to 3000:1 PWM Dimming n 20:1 Analog Dimming n ±3% Current Regulation Accuracy n ±3% Voltage Regulation Accuracy
- Unique Inverting Buck-Boost Topology Allows Grounded Heat Sink to Be Used for RGB LEDs n 3.3V to 36V Input Voltage Range
- Peak Current Mode with DC LED Current Sensing
- Open and Shorted LED Protection and Fault Reporting
- Floating LED Driver Allows Single Power Solution to Drive Multicolor LEDs or Single LED with Three Different Regulated Currents
