LT3475EFE-1#TRPBF

LED Driver IC Overview

The LT3475EFE-1#TRPBF is a high-efficiency, synchronous step-down DC/DC converter from Analog Devices. It integrates two N-channel power switches and operates with an input voltage range of 2.8V to 60V. The device supports adjustable output voltages down to 0.8V via an external resistor divider. It features a fixed 500kHz switching frequency for the first channel and a selectable 500kHz or 1.2MHz frequency for the second channel. The converter delivers up to 3A continuous current per channel with integrated bootstrap diodes and soft-start functionality.

LED Driver IC Feature Summary

• Dual-channel synchronous buck architecture with integrated power switches
• Wide input voltage capability supporting industrial and automotive loads
• Independent frequency selection for flexible noise management

LED Driver IC Applications

• Industrial control systems requiring dual isolated rails
• Automotive infotainment and instrumentation power distribution
• Telecommunications base station bias supplies

LED Driver IC Procurement Notes

Verify the specific suffix 'EFE' indicates the 20-pin SSOP package and '#TRPBF' denotes tape-and-reel packaging with lead-free composition. Confirm that the '-1' designation matches the required pinout configuration for your PCB layout. Ensure compatibility with the specified thermal pad requirements during assembly.

LED Driver IC Selection Notes

Select this component when dual independent outputs are required from a single wide-voltage source. It is suitable for designs needing precise current sharing between channels. Consider thermal dissipation capabilities based on the load current and ambient temperature conditions.

LED Driver IC Part Context

This part belongs to the LT3475 family of dual synchronous buck converters. It shares core topology with variants differing in package type or switching frequency options. The series is designed for applications demanding high efficiency and compact solution size in space-constrained environments.

LED Driver IC Replacement Considerations

Direct substitutes include other LT3475 variants such as LT3475EFE-2#TRPBF if different frequency settings are acceptable. Verify pin-to-pin compatibility before substitution. Cross-reference with similar dual-buck controllers from other manufacturers only if electrical specifications match exactly.