LT4363CMS-1#PBF

Overview

The LT4363CMS-1#PBF is a high voltage surge stopper with current limit, manufactured by Analog Devices Inc. It operates within an input supply range of 5.7V to 31.6V DC and withstands survival voltages up to 80V DC, with transient tolerance of 250V. The device regulates output to approximately 17.0V typical during overvoltage events. It features a latch-off mechanism requiring a shutdown signal reset and supports external N-channel MOSFET control. The component is housed in a 12-pin MSOP package.

Feature Summary

• Integrates high voltage surge protection with adjustable current limiting capabilities
• Provides automatic retry or latch-off fault response modes depending on variant configuration
• Supports external N-channel MOSFET for scalable power handling and thermal management

Applications

• Automotive electronics systems requiring robust overvoltage protection
• Industrial control equipment interfaces
• Avionics power distribution networks

Procurement Notes

Verify the specific suffix designation to confirm the exact pinout and functional behavior, as variants differ in reset mechanisms. Confirm RoHS compliance status through official documentation prior to integration. Ensure the selected package type matches the PCB footprint requirements. Check for any recent product change notifications that may affect long-term availability or specifications.

Selection Notes

Choose this component when board-level surge suppression is required for inputs exceeding standard logic levels. Select based on the need for precise output regulation during transient events. Consider the external MOSFET option for higher current applications where internal limits are insufficient. Evaluate the thermal performance requirements relative to the chosen package style.

Part Context

This part belongs to the LT4363 family of high voltage surge stoppers designed to protect sensitive downstream circuitry from input voltage spikes. The series offers configurable protection thresholds and fault responses. It serves as a critical interface component between harsh power environments and delicate electronic loads.

Replacement Considerations

LT4363CS-1#PBF

FAQ

How does the LT4363CMS-1#PBF handle fault conditions?

The device latches off after a fault occurs and requires a low signal on the SHDN pin for at least 100μs to reset.

What is the maximum survival voltage for this component?

The component can survive transient voltages up to 250V while operating within a DC supply range up to 80V.