LT3517HUF#TRPBF

LED Driver IC Overview

The LT3517HUF#TRPBF is a full-featured LED driver IC from Analog Devices, housed in a 16-pin QFN package. It integrates a high-voltage switch capable of delivering up to 1.25 A of output current. The device supports multiple DC/DC converter topologies, including boost, buck, and buck-boost configurations, allowing for flexible input voltage ranges from 3 V to 30 V. It operates with an adjustable switching frequency ranging from 250 kHz to 2.5 MHz and provides an adjustable output voltage. The component is designed for single-channel operation and includes integrated brightness control and PWM dimming capabilities.

LED Driver IC Feature Summary

• Integrates a high-voltage power switch for direct LED drive without external components
• Supports versatile DC/DC topologies including boost, buck, and buck-boost modes
• Enables precise light regulation through analog and PWM dimming interfaces

LED Driver IC Applications

• LED backlighting systems
• General LED lighting applications
• Portable electronic devices requiring efficient LED drive

LED Driver IC Procurement Notes

Verify the specific suffix #TRPBF confirms the reel packaging format required for automated assembly processes. Confirm that the HUF variant matches the thermal and electrical specifications needed for the target PCB layout. Ensure compatibility with the intended operating temperature range and input voltage constraints before finalizing procurement orders.

LED Driver IC Selection Notes

Select this component when a single-chip solution is required for driving LEDs with varying forward voltages using buck or boost architectures. It is suitable for designs needing integrated high-current switching and flexible dimming control. Consider the QFN-16 package size and thermal performance relative to the expected load current and ambient conditions during the design phase.

LED Driver IC Part Context

This part belongs to the LT3517 series of LED drivers, which are characterized by their ability to handle high input voltages and provide regulated current to LED loads. The series is designed to simplify power supply design for lighting applications by integrating the necessary switching elements and control logic into a compact footprint.

LED Driver IC Replacement Considerations

Public confirmed substitute part numbers: LT3517EUF#PBF, LT3517IFE#TRPBF, LT3517IFE#PBF.