LT3518EUF#PBF

LED Driver IC Overview

The LT3518EUF#PBF is a high-performance LED driver IC manufactured by Analog Devices Inc., housed in a 16-lead QFN (4x4 mm) package. It integrates a 2.3A switch capable of supporting Buck, Boost, and Buck-Boost topologies for flexible LED string configurations. The device operates with an input voltage range of 3V to 30V and features an adjustable switching frequency from 250kHz to 2.5MHz. It supports both analog and PWM dimming methods and includes open LED protection. The component is rated for operation at junction temperatures between -40°C and +125°C.

LED Driver IC Feature Summary

• Integrates a 2.3A power switch supporting buck, boost, and buck-boost converter topologies for versatile LED drive applications.
• Provides precise current regulation with support for both analog and pulse-width modulation (PWM) dimming control.
• Includes built-in open LED protection circuitry to enhance system reliability and safety during fault conditions.

LED Driver IC Applications

• LED backlighting systems
• General LED lighting solutions

LED Driver IC Procurement Notes

Verify the specific suffix against official documentation, as the provided model indicates a tube package while common variants often use tape-and-reel formats. Confirm the exact pinout and thermal pad requirements for your PCB layout. Ensure compatibility with your target operating temperature range and input voltage specifications before finalizing procurement.

LED Driver IC Selection Notes

Select this component when designing circuits requiring a single-output LED driver with high current capability and flexible topology options. It is suitable for applications needing wide input voltage ranges and integrated protection features. Consider the 16-QFN package size for space-constrained designs requiring efficient heat dissipation through the exposed pad.

LED Driver IC Part Context

This part belongs to the LT3518 family of LED drivers from Analog Devices. It shares core functional characteristics with other variants like the LT3518EFE, differing primarily in packaging and potentially temperature grades. The family is designed for driving LEDs in various industrial and consumer lighting applications requiring robust performance.

LED Driver IC Replacement Considerations

LT3518EFE#PBF offers identical electrical performance in a TSSOP-16 package. LT3517IUF#PBF provides similar functionality but with a reduced 1.5A switch current rating. Verify pin-to-pin compatibility and thermal requirements when substituting these alternatives.