LT3942JUFD#PBF

LED Driver IC Overview

The LT3942JUFD#PBF is a monolithic 4-switch synchronous buck-boost converter and LED driver manufactured by Analog Devices Inc. It operates with an input voltage range of 3 V to 60 V and provides an adjustable output voltage up to 36 V. The device supports a switching frequency between 300 kHz and 2 MHz, delivering a maximum output current of 2 A per channel. It features constant voltage and constant current regulation in a QFN-28 package.

LED Driver IC Feature Summary

• Integrates a 4-switch synchronous buck-boost topology for versatile voltage conversion
• Supports analog and PWM dimming methods for lighting control
• Includes open LED protection mechanisms for system safety

LED Driver IC Applications

• General purpose power management
• LED lighting systems
• Voltage regulation applications

LED Driver IC Procurement Notes

Verify availability status as Mouser indicates limited supply or special order requirements for this part number. Confirm RoHS compliance details directly from the manufacturer datasheet. Ensure the specific suffix #PBF matches the required tube packaging configuration for your assembly process. Cross-reference the full part number to avoid confusion with tape-and-reel variants like #TRPBF.

LED Driver IC Selection Notes

Select this component when a wide input voltage range up to 60 V is required alongside high current capability. The synchronous buck-boost architecture allows operation in both buck and boost modes, simplifying design for battery-powered or variable source applications. Ensure thermal management strategies account for the QFN-28 package characteristics under maximum load conditions.

LED Driver IC Part Context

This part belongs to the LT3942 series of LED drivers and DC/DC converters. It is designed for applications requiring precise current regulation and flexible input/output voltage relationships. The device combines power stage and control logic into a single monolithic solution, reducing external component count compared to discrete implementations.

LED Driver IC Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing circuit designs before considering alternative components from other manufacturers.