LT4363CS-2#PBF

Overview

The LT4363CS-2#PBF is a high-voltage surge stopper with current limit, manufactured by Analog Devices Inc. It operates within an input supply range of 4 VDC to 80 VDC and features a 16-SOIC surface-mount package. The device provides robust protection against input transients up to 250V for 1ms duration, limiting output voltage to approximately 16.3V. It includes automatic retry functionality after cool-down delays in sustained overvoltage or overcurrent conditions, distinguishing it from the latching LT4363-1 variant.

Feature Summary

• High voltage surge suppression capability protecting downstream components from input transients
• Integrated current limiting to safeguard the external MOSFET against output overloads
• Automatic retry mechanism activates after a cool-down delay following fault conditions

Applications

• Automotive power systems requiring transient protection
• Avionics equipment needing reliable high-voltage surge handling
• Industrial control circuits demanding board-level surge protection

Procurement Notes

Verify component authenticity through authorized Analog Devices distributors. Confirm package integrity and pin alignment upon receipt. Ensure storage conditions comply with moisture sensitivity levels specified in the datasheet. Cross-reference ordering prefixes to match exact electrical specifications. Validate RoHS compliance documentation for regulatory adherence.

Selection Notes

Select this variant when automatic recovery from fault states is required rather than manual reset. Compare against LT4363-1 if latching behavior is preferred for specific safety protocols. Evaluate thermal performance requirements relative to the SO-16 package dimensions. Consider input voltage ranges exceeding 80VDC may necessitate alternative solutions.

Part Context

Part of the LT4363 family designed for high-voltage DC input protection. Differentiates from other Linear Technology products by focusing on transient survival and current limiting rather than gate driving or amplification. Serves as a critical interface between harsh power environments and sensitive load circuitry.

Replacement Considerations

LT4363IDE-2#PBF serves as a documented evaluation platform reference. LT4363MPMS-2#PBF offers MSOP-12 packaging alternatives. Verify pin compatibility and electrical thresholds before substitution.