LT3517EUF#PBF

LED Driver IC Overview

The LT3517EUF#PBF is a full-featured LED driver IC from Analog Devices, housed in a 16-pin QFN package. It integrates a high-side switch with a 1.5A current limit and supports Boost, Buck, and Buck-Boost topologies. The device operates on an input voltage range of 3V to 30V with a switching frequency adjustable between 250kHz and 2.5MHz. It features PWM dimming capability and open LED protection, making it suitable for driving LED strings with voltages ranging from the input level up to 40V.

LED Driver IC Feature Summary

• Integrates a 1.5A high-side switch supporting multiple LED drive topologies
• Supports true color PWM dimming for precise brightness control
• Includes open LED protection circuitry for system reliability

LED Driver IC Applications

• LED lighting systems requiring boost topology
• Battery-powered portable lighting devices
• Automotive interior illumination circuits

LED Driver IC Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm pinout and thermal pad configuration. Ensure the component matches the required operating temperature range and packaging specifications for your design. Cross-reference the manufacturer part number with authorized distributors to confirm authenticity and availability status before procurement.

LED Driver IC Selection Notes

Select this component when designing LED drivers that require flexible topology support including buck, boost, or buck-boost configurations. It is appropriate for applications needing integrated high-current switching without external power MOSFETs. Consider the adjustable switching frequency range to optimize external component size and efficiency requirements.

LED Driver IC Part Context

This part belongs to the LT3517 series of full-featured LED drivers. It is distinct from similar models like the LT3518 or LT3519 by its specific 1.5A switch current rating and 16-pin QFN footprint. The series is designed for versatile LED string driving capabilities across various industrial and consumer applications.

LED Driver IC Replacement Considerations

Consult official substitution guides for compatible parts within the LT351x family. Verify electrical parameters such as switch current and operating voltage ranges match the original design requirements.