LT3942EUFD#PBF

LED Driver IC Overview

The LT3942EUFD#PBF is a monolithic 4-switch synchronous buck-boost converter and LED driver from Analog Devices. It features constant voltage and constant current regulation with an input voltage range of 3V to 36V. The device supports a switch frequency from 300kHz to 2MHz and delivers up to 2A output current. It operates within a temperature range of -40°C to +125°C and is housed in a 28-lead QFN package.

LED Driver IC Feature Summary

• Monolithic four-switch synchronous buck-boost topology
• Integrated constant voltage and constant current regulation
• Wide input voltage range supporting diverse power sources
• Adjustable switching frequency for optimized efficiency

LED Driver IC Applications

• LED lighting drivers
• Voltage regulator circuits
• Buck-boost power conversion systems

LED Driver IC Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance when sourcing. Confirm availability status as supply may be limited or restricted. Ensure the QFN-28 package variant matches your PCB footprint requirements. Cross-reference the manufacturer part number with official Analog Devices documentation to avoid counterfeit components.

LED Driver IC Selection Notes

Select this component when both buck and boost operation are required within a single stage. Consider the 2A current limit for medium-power LED strings. Evaluate the 300kHz to 2MHz frequency range against EMI constraints. Verify that the 3V to 36V input range aligns with the system power architecture.

LED Driver IC Part Context

This part belongs to the LT3942 series, designed for high-efficiency power management. It integrates control logic, power switches, and protection features into a compact solution. The EUFD suffix denotes the specific thermal and electrical performance grade within the QFN-28 package family.

LED Driver IC Replacement Considerations

LT3942JUFD#PBF is a documented substitute within the same series.