The AOZ18101DI-02 from Alpha & Omega Semiconductors is a Current-Limiting Over-Voltage Protection eFuse IC that targets applications requiring front-end protection at the input line. It requires an input voltage of 3.5 - 14 V. This eFuse IC integrates a soft-start function that can be programmed to control the in-rush current for highly capacitive loads. It uses a built-in blocking FET to provide True Reverse Current Blocking (TRCB) function and includes an external blocking FET control pin option if a standalone MOSFET is preferred. The eFuse IC contains an internal current-limiting circuit that protects the supply from large load current and also uses a resistor to externally set the current limit threshold. It shuts down the circuit when a fault is detected, and will automatically restart once the fault conditions are released.

This eFuse IC consists of an under-voltage lockout (UVLO), an over-voltage output clamp (OVC), and thermal shutdown protection (TSD) to prevent short-circuit and over-heating-related damages. It is available in a surface-mount package that measures 3 x 3 mm and is ideal for servers, HDD and SDD drivers, PCI cards, and networking applications.