LT3476IUHF#PBF

LED Driver IC Overview

The LT3476IUHF#PBF is a high-current quad output LED driver designed for driving high-power LEDs. It functions as a quad output DC-DC converter operating as a constant-current source. The device features a fixed frequency, current mode architecture ensuring stable operation across wide supply and output voltage ranges. Input voltage operates from 2.8 V to 16 V. The switching frequency is programmable between 200 kHz and 2 MHz via an external pin to optimize efficiency and component size.

LED Driver IC Feature Summary

• Quad output DC-DC converter architecture designed for high-current LED driving
• Fixed frequency current mode control for stable operation over wide voltage ranges
• Programmable switching frequency allows optimization of efficiency and external component size

LED Driver IC Applications

• High power LED lighting systems
• Constant current LED driver circuits
• LED illumination development tools

LED Driver IC Procurement Notes

Verify the specific suffix IUHF against official Analog Devices documentation to confirm package type and temperature grade. Confirm availability status through authorized distributors as supply may be restricted. Ensure compatibility with required input voltage range and switching frequency settings before procurement.

LED Driver IC Selection Notes

Select this component when designing multi-channel high-power LED drivers requiring independent current regulation. The wide input voltage range supports various power sources. Consider the programmable frequency feature to balance EMI performance and passive component footprint requirements in the target application design.

LED Driver IC Part Context

The LT3476 series belongs to Analog Devices' portfolio of LED lighting drivers. This specific part integrates four independent buck converters into a single QFN package. It addresses applications needing multiple high-current LED channels driven from a single power rail efficiently.

LED Driver IC Replacement Considerations

Consult official Analog Devices substitution guides for verified alternatives. Generic cross-references are not recommended due to specific pinout and electrical characteristic differences.