LT3518IUF#PBF

LED Driver IC Overview

The LT3518IUF#PBF is a high-efficiency LED driver IC featuring an integrated 2.3A switch current capability. It supports Buck, Boost, and Buck-Boost topologies with an input voltage range of 3V to 30V. The device operates at a switching frequency between 250kHz and 2.5MHz. It provides analog and PWM dimming control for backlight applications. The component is housed in a 16-WQFN (4x4) package with an exposed pad and functions within a junction temperature range of -40°C to 125°C.

LED Driver IC Feature Summary

• Integrates a 2.3A power switch supporting multiple DC-DC converter topologies
• Enables precise brightness control through combined analog and PWM dimming interfaces
• Operates across a wide input voltage range suitable for single-cell lithium battery systems

LED Driver IC Applications

• Backlight drivers for mobile phones and handheld devices
• LED lighting in portable consumer electronics
• General-purpose LED illumination in compact form factors

LED Driver IC Procurement Notes

Verify the suffix 'IUF' confirms the industrial temperature grade (-40°C to 125°C) and the '#PBF' indicates lead-free RoHS compliance. Confirm the specific manufacturer datasheet revision matches your design requirements. Ensure the 16-QFN footprint aligns with your PCB layout guidelines before finalizing procurement.

LED Driver IC Selection Notes

Select this component when a single-channel driver with high current capacity is required for flexible topology implementation. It is suitable for designs needing wide input voltage compatibility from single-cell sources. Consider the thermal performance of the QFN package for high-power density applications requiring robust heat dissipation.

LED Driver IC Part Context

This part belongs to the LT3518 family of LED drivers manufactured by Analog Devices Inc. It shares core functionality with variants like the LT3518EFE but differs in packaging. The IUF designation specifies the industrial temperature rating and the 16-lead QFN package format, distinguishing it from other pin-compatible or functional alternatives in the series.

LED Driver IC Replacement Considerations

LT3518EFE#PBF offers identical electrical specifications but utilizes a TSSOP-16 package instead of the QFN form factor.