LT3592EDDB

LED Driver IC Overview

The LT3592EDDB is a fixed-frequency step-down DC/DC converter designed as a constant-current LED driver. It operates with an input voltage range of 6V to 36V and provides a regulated output current of 500mA. The device features a high switching frequency of 2.2MHz, enabling the use of small inductors and ceramic capacitors. It supports 10:1 dimming ratios and includes thermal regulation for protection. The component is housed in a compact 10-lead DFN (3x2mm) package.

LED Driver IC Feature Summary

• Fixed-frequency step-down topology optimized for constant-current LED driving
• Wide input voltage capability from 6V to 36V
• High 2.2MHz switching frequency allows miniaturization of passive components
• Integrated thermal regulation protects against overheating

LED Driver IC Applications

• Driving multiple LEDs mounted on PCBs from wide input voltage ranges
• Display backlights requiring constant current regulation
• Indicator lighting systems with dimming requirements

LED Driver IC Procurement Notes

Verify the specific suffix (e.g., #TRPBF or #TRMPBF) to confirm reel packaging and temperature grade. Ensure the order matches the required lead-free and RoHS compliance status. Cross-reference the exact part number with the manufacturer's datasheet to confirm pinout and electrical specifications before procurement.

LED Driver IC Selection Notes

Select this component when a compact buck converter solution is needed for LED strings. The 2.2MHz frequency is critical for minimizing board space. Verify that the load current requirements align with the 500mA maximum rating. Consider the input voltage range to ensure compatibility with the system power supply.

LED Driver IC Part Context

This part belongs to the LT3592 family of LED drivers from Analog Devices (formerly Linear Technology). It is specifically engineered for applications requiring efficient, space-saving LED illumination. The DFN package facilitates surface-mount assembly in dense layouts.

LED Driver IC Replacement Considerations

Check for direct substitutes within the same product family or similar topologies from other manufacturers. Ensure equivalent input voltage ranges, output current capabilities, and package dimensions are maintained during substitution.