LT3518EUF#TRPBF

LED Driver IC Overview

The LT3518EUF#TRPBF is a single-output LED driver IC manufactured by Analog Devices Inc., housed in a 16-QFN (4x4 mm) package with an exposed pad. It integrates a 2.3A switch current capability and supports Buck, Boost, and Buck-Boost topologies for flexible LED string configurations. The device operates on input voltages ranging from 3V to 30V and features an adjustable switching frequency between 250kHz and 2.5MHz. It provides both analog and PWM dimming control options. The component is rated for operation within a junction temperature range of -40°C to 125°C.

LED Driver IC Feature Summary

• Integrates a high-current 2.3A internal power switch capable of driving LEDs in various series-parallel configurations.
• Supports multiple converter topologies including buck, boost, and buck-boost to accommodate diverse input voltage ranges relative to LED forward voltage.
• Offers dual dimming methods via dedicated pins for precise analog current control and digital pulse-width modulation synchronization.

LED Driver IC Applications

• LED backlighting systems
• General LED lighting drivers

LED Driver IC Procurement Notes

Verify the specific suffix TRPBF indicates tape-and-reel packaging when sourcing components. Confirm that the EUF designation corresponds to the 16-QFN package variant rather than other available packages like TSSOP. Ensure compatibility with the required operating temperature range and check for RoHS compliance documentation provided by Analog Devices Inc. prior to final procurement decisions.

LED Driver IC Selection Notes

Select this component when a single-channel driver with high peak current is required for compact designs. The integrated switch eliminates external MOSFETs, reducing board space. Consider the wide input voltage range suitable for battery-powered or varying supply applications. Evaluate the need for both analog and PWM dimming capabilities against system control requirements before choosing this specific part number over other LT3518 variants.

LED Driver IC Part Context

This part belongs to the LT3518 family of full-featured LED drivers designed for versatile lighting applications. Unlike the EFE or HFE variants which utilize TSSOP-16 packages, the EUF version specifically employs a 16-QFN footprint optimized for surface-mount assembly. The family shares core electrical characteristics but differs in thermal performance and physical dimensions based on the selected housing type.

LED Driver IC Replacement Considerations

LT3518EFE#PBF and LT3518HFE#PBF are pin-compatible alternatives within the same family, differing primarily in package style (TSSOP-16) and maximum junction temperature ratings. No direct cross-brand substitutes are confirmed in the provided data.