LT3922IUFD#PBF

LED Driver IC Overview

The LT3922IUFD#PBF is a monolithic, synchronous step-up DC/DC converter designed for LED lighting applications. It operates with an input voltage range of 2.8 V to 36 V and delivers up to 2 A output current. The device utilizes fixed-frequency peak current control with a switching frequency adjustable from 200 kHz to 2 MHz. It features PWM dimming capability and open LED protection. Packaged in a QFN-28 case, it supports surface mount installation and functions within a temperature range of -40°C to +125°C TJ.

LED Driver IC Feature Summary

• Synchronous boost topology for high efficiency
• Integrated PWM dimming control
• Open LED protection circuitry

LED Driver IC Applications

• Automotive lighting systems
• General LED lighting fixtures
• Display backlights

LED Driver IC Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm pinout and functional variations. Ensure the QFN-28 package dimensions match your PCB footprint requirements. Confirm that the thermal performance meets your system's heat dissipation capabilities under maximum load conditions. Cross-reference the RoHS compliance status with current regulatory standards for your target market.

LED Driver IC Selection Notes

Select this component when a single-channel synchronous boost driver is required for high-power LED strings. The wide input voltage range accommodates various supply sources. The adjustable frequency allows optimization for external component size. Verify that the 2 A current limit aligns with the LED string configuration. Consider the thermal resistance of the QFN-28 package for adequate heat sinking.

LED Driver IC Part Context

This part belongs to the LT3922 series of LED drivers from Analog Devices. It is distinct from the LT3922IUFD-1#PBF variant, which may have different internal configurations or pinouts. The series is characterized by its synchronous rectification and integrated power switch, offering a compact solution for space-constrained lighting designs.

LED Driver IC Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.