FPF2280/1 Over Voltage Protected Switches onsemi FPF2280/1 Over Voltage Protected Switches feature a low-RON internal FET and an operating range of 2.5VDC to 5.5VDC (FPF2280) or 2.5VDC to 13.5VDC (FPF2281). An internal clamp, capable of shunting surge voltages >,100V, protects downstream components and enhances system robustness. The FPF2280/1 features over-voltage protection that powers down the internal FET if the input voltage exceeds the OVP threshold. The OVP threshold is adjustable with optional external resistors. Over-temperature protection also powers down the device at +130°C (typical). Exceptionally low off-state current (<,1μA maximum) facilitates compliance with standby power requirements.