LT4363HDE-2#TRPBF

Overview

The LT4363HDE-2#TRPBF is a high-efficiency switching surge stopper manufactured by Analog Devices Inc. It operates within an input voltage range of 4 VDC to 80 VDC and utilizes a DFN-12 surface-mount package with SMD/SMT termination. The device supports a minimum operating temperature of -40°C and a maximum of +70°C, designed for board mount applications in automotive, avionics, and industrial sectors.

Feature Summary

• Integrates high-efficiency switching topology to minimize conduction losses during normal operation
• Provides automatic retry functionality after cool-down delay following overvoltage or overcurrent events
• Includes current limiting protection to safeguard the external MOSFET against output overloads

Applications

• Automotive power distribution systems
• Avionics electrical architectures
• Industrial control equipment

Procurement Notes

Verify the specific suffix TRPBF indicates tape and reel packaging configuration when sourcing. Confirm that the H-grade designation aligns with the required thermal and operational specifications for the target environment. Ensure compatibility with the DFN-12 footprint and soldering profiles defined in the official datasheet prior to procurement.

Selection Notes

Select this component for applications requiring robust input protection against transient surges up to 140V while maintaining low quiescent current. The LT4363HDE-2 variant offers automatic recovery, distinguishing it from latching alternatives. Evaluate the trade-off between the switching efficiency and the complexity of driving the external MOSFET gate compared to linear solutions.

Part Context

This part belongs to the LT4363 series of high-voltage surge stoppers. It functions as a controller for an external N-channel MOSFET, replacing traditional diode-based OR-ing or protection schemes. The series is engineered to handle significant input transients while providing precise current limiting and fault management capabilities.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.