LT3518HUF#TRPBF

LED Driver IC Overview

The LT3518HUF#TRPBF is a high-efficiency LED driver IC featuring an integrated buck-boost DC/DC converter and a 2.3A internal switch. It operates from a supply voltage range of 3V to 30V, supporting flexible input configurations for various lighting applications. The device regulates output current with precision and supports both analog and PWM dimming methods for brightness control. Operating at frequencies between 250kHz and 2.5MHz, it utilizes a 16-pin QFN package suitable for surface mount assembly.

LED Driver IC Feature Summary

• Integrates a buck-boost topology with a 2.3A internal power switch for efficient LED regulation across wide input voltage ranges.
• Supports dual dimming modes including analog control and pulse-width modulation (PWM) for precise brightness adjustment.
• Features adjustable switching frequency ranging from 250kHz to 2.5MHz to optimize external component size and electromagnetic interference.

LED Driver IC Applications

• LED backlighting systems
• General LED illumination drivers
• Portable lighting devices

LED Driver IC Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm package type and temperature grade. The TRPBF suffix indicates tape and reel packaging; ensure compatibility with automated assembly equipment. Confirm RoHS compliance status through the manufacturer's material declaration. Cross-reference the full part number with the latest datasheet revision to validate electrical characteristics and pinout definitions before procurement.

LED Driver IC Selection Notes

Select this component when a single-channel LED driver requires operation from varying input voltages without inverting polarity. The integrated 2.3A switch capability suits medium-power LED strings. Consider the thermal performance of the QFN package relative to the expected load current. Ensure the required dimming interface matches either the analog or PWM control pins available on the device.

LED Driver IC Part Context

This part belongs to the LT3518 family of LED drivers manufactured by Analog Devices Inc. The HUF suffix typically denotes a specific temperature grade and QFN package variant within this series. Related parts include the EFE and EUF variants, which offer different package options such as TSSOP while maintaining similar electrical functionality.

LED Driver IC Replacement Considerations

LT3518EFE#TRPBF and LT3518EUF#TRPBF are functionally equivalent alternatives within the same family, differing primarily in package style.