LTC4380IMS-1#TRPBF

Overview

The LTC4380IMS-1#TRPBF is a low quiescent current surge stopper manufactured by Analog Devices Inc. It protects loads from high voltage transients by clamping the gate voltage of an external N-channel MOSFET. The device operates within a voltage range of 4 VDC to 72 VDC and features a fixed internal gate clamp voltage suitable for 12V systems. It includes overcurrent protection with adjustable fault timers and reverse input protection capabilities. The component is housed in a MSOP-10 surface-mount package and supports operation temperatures from -40°C to +85°C.

Feature Summary

• Provides overvoltage protection by limiting output voltage during transient events such as automotive load dump
• Features adjustable fault timers that limit operating time based on MOSFET stress conditions
• Supports reverse input protection through back-to-back MOSFET driving without Schottky diode voltage drop

Applications

• Automotive, avionics, and industrial surge protection
• Hot-swap and live-insertion applications
• High-side switching for battery-powered systems

Procurement Notes

Verify availability status carefully as this specific part number may be subject to limited supply or factory special order constraints. Confirm RoHS compliance details and ensure the MSOP-10 package matches your PCB footprint requirements before finalizing procurement decisions.

Selection Notes

Select this component when a fixed 12V system gate clamp is required rather than the adjustable versions found in other series variants. Ensure the external N-channel MOSFET selected can withstand the maximum voltage ratings specified for the 4V to 72V operating range.

Part Context

This part belongs to the LTC4380 family of low quiescent current surge stoppers. Unlike the IMS-2 variant which offers adjustable clamping, the IMS-1 version provides a fixed clamp voltage optimized for standard 12V architectures. It shares the same core protection logic and low power consumption characteristics as its siblings.

Replacement Considerations

LTC4380IMS-1#PBF is the tube-packaged equivalent of this reel-trimmed part number. Other family members like LTC4380HDD-3#TRPBF offer adjustable clamping but differ in package type and electrical configuration.