LT4363HDE-1#TRPBF

Overview

The LT4363HDE-1#TRPBF is a high-voltage surge stopper IC manufactured by Analog Devices Inc. It features an integrated N-channel MOSFET with an internal resistance of 9mΩ. The device supports input voltages up to 80V DC and can withstand transients of up to 250V for 1ms. It provides adjustable current limiting and overvoltage protection, latching off after sustained faults. The component operates within a temperature range of -40°C to +125°C and is housed in a 12-lead DFN package.

Feature Summary

• Integrates a low-resistance N-channel MOSFET for efficient power path control
• Provides adjustable external switch control for precise surge management
• Features automatic current limiting to protect against output overloads
• Includes latch-off functionality reset via shutdown pin for fault recovery

Applications

• High voltage system protection
• Surge suppression circuits
• Overvoltage and overcurrent protection boards

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm the manufacturer part number matches Analog Devices Inc. specifications exactly. Check datasheet revisions for any updates to electrical characteristics or thermal performance data before finalizing procurement decisions.

Selection Notes

Select this component for applications requiring robust protection against high-voltage transients up to 250V. Ensure the design accommodates the 9mΩ internal MOSFET resistance for appropriate voltage drop calculations. Verify that the external switch configuration aligns with the required input voltage ranges and transient survival capabilities specified in the official documentation.

Part Context

This part belongs to the LT4363 family of high-voltage surge stoppers. It is designed to protect sensitive downstream electronics from input surges and faults. The device integrates control logic with a power MOSFET, offering a compact solution compared to discrete implementations. It is categorized under board mount surge protectors within the power management IC portfolio.

Replacement Considerations

LT4363IDE-1#PBF is a documented alternative variant within the same product family.