LT4363IS-1#PBF

Overview

The LT4363IS-1#PBF is a high voltage surge stopper with current limit manufactured by Analog Devices Inc. It operates within an input supply range of 4 V to 80 V and features a low quiescent current rating of 700 uA. The device is housed in a SOIC-16 surface mount package, measuring 10 mm in length, 3.99 mm in width, and 1.75 mm in height. It supports a minimum operating temperature of -40 C and a maximum operating temperature of +85 C.

Feature Summary

• Provides board-level protection against high voltage surges and overcurrent conditions
• Integrates current limiting functionality to protect downstream MOSFETs from output overloads
• Features latch-off behavior for sustained fault conditions requiring manual reset via shutdown pin

Applications

• Automotive systems
• Avionics equipment
• Industrial control units

Procurement Notes

Verify component authenticity through authorized Analog Devices channels or certified distributors. Confirm the specific suffix matches the required operational characteristics. Check datasheet revisions for any recent parameter updates. Ensure storage conditions comply with moisture sensitivity levels. Validate that the SOIC-16 footprint aligns with the target PCB design constraints.

Selection Notes

Select this variant when a latch-off response is preferred over automatic retry for fault recovery. The SOIC-16 package offers a larger thermal dissipation area compared to smaller MSOP options. Consider the 700 uA quiescent current draw for low-power system budgets. Verify that the 80 VDC input rating meets the maximum transient requirements of the application environment.

Part Context

This component belongs to the LT4363 series of high voltage surge stoppers. It is designed to protect sensitive electronics from input power line disturbances. The part number indicates the industrial temperature grade and the specific latch-off configuration. It serves as a critical interface between power sources and load circuits.

Replacement Considerations

LT4363IS-2#PBF provides similar protection but with automatic retry functionality instead of latch-off.