The MAX14723ATP+ from Analog Devices (Maxim Integrated) is an adjustable current-limit IC designed specifically for overvoltage and undervoltage protection in power distribution systems. Its wide 5.5 V to 58 V supply range makes it a natural fit for 12 V, 24 V, and 48 V industrial and automotive power rails where transients can exceed the nominal bus voltage. The part integrates the current-limit adjustment, so you set the threshold with an external resistor rather than relying on a fixed factory trim.
Supply range and temperature — the two specs that decide fit
The 5.5 V minimum supply means this part will not drop out on a heavily loaded 12 V bus during cold-crank conditions where the rail sags to 6 V. The 58 V maximum covers the typical 48 V telecom bus plus the 20 % overvoltage transient that hits when a load dump occurs on a 24 V automotive system.
At 1.4 mA supply current, the MAX14723ATP+ adds negligible overhead to the always-on protection block in battery-backed systems — a key consideration when every milliamp of standby draw eats into the battery budget.