Protecting the rail from overvoltage and undervoltage events
The LTC4365ITS8-1#TRMPBF is an overvoltage and undervoltage protection controller from Analog Devices that sits between the input power source and the load, shutting off the pass FET when the supply rail drifts outside a programmed window. It handles a supply range of 2.5 V to 34 V, which covers common 3.3 V, 5 V, 12 V, and 24 V industrial buses. Quiescent current is 125 µA typical, low enough that the protection circuit itself doesn't dominate the standby budget in a battery-powered sensor node or a remote I/O module.
Package, temperature grade, and compliance
Housed in a TSOT-23-8 package (SOT-23-8 Thin), this is a surface-mount part suited for compact PCB layouts where board space is tight. The operating temperature range spans -40°C to 85°C, covering most industrial and commercial environments. The device is marked as ROHS3 compliant, which means it meets the latest RoHS exemption rules for lead-free soldering processes.
Sourcing and lifecycle status
Analog Devices lists the LTC4365ITS8-1#TRMPBF as Active in production, so it remains available for both new designs and existing BOM positions through authorized distribution channels.