LT3755EUD#PBF

LED Driver IC Overview

The LT3755EUD#PBF is a high-efficiency, high-voltage DC-DC controller designed for driving LED strings. It supports multiple topologies including boost, buck, buck-boost, flyback, and SEPIC configurations. The device operates with an input voltage range of 4.5 V to 40 V and can deliver up to 10 A output current. It features a programmable switching frequency from 100 kHz to 1 MHz. The component is housed in a 16-pin QFN package and is rated for operation between -40°C and +125°C.

LED Driver IC Feature Summary

• Supports versatile converter topologies such as boost, buck, buck-boost, flyback, and SEPIC for flexible LED driver designs.
• Capable of handling high input voltages up to 40 V and delivering significant output currents for high-power applications.
• Features adjustable switching frequencies to optimize efficiency and minimize external component size.

LED Driver IC Applications

• High-power density LED lighting systems
• Industrial LED string drivers requiring high stability
• Automotive exterior lighting modules

LED Driver IC Procurement Notes

Verify the specific suffix (e.g., EUD vs IUD) against your design requirements, as temperature ranges differ. Confirm availability status directly with Analog Devices or authorized distributors, as supply may be restricted. Ensure the 16-QFN package footprint matches your PCB layout constraints before finalizing procurement orders.

LED Driver IC Selection Notes

Select this controller when designing LED drivers that require high input voltage tolerance and multiple topology options. Consider the thermal performance of the exposed pad QFN package for high-current applications. Verify that the required switching frequency falls within the 100 kHz to 1 MHz range to ensure compatibility with available inductors and capacitors.

LED Driver IC Part Context

This part belongs to the LT3755 family of LED controllers from Analog Devices. It is engineered for applications demanding high power density and robust performance. The device integrates control circuitry necessary for managing high-side switches in various DC-DC converter architectures tailored for LED illumination.

LED Driver IC Replacement Considerations

Check LT3755EUD-1#PBF and LT3755IUD-1#PBF for similar functionality with potentially different temperature ratings. Verify pinout and electrical specifications against datasheets before substitution.