FPF2165R

FPF2165R Full Function Load Switch with Adjustable Current Limit April 2009 FPF2165R Full Function Load Switch with Adjustable Current Limit Features „ 1.8 to 5.5V Input Voltage Range „ Controlled Turn-On „ 0.15-1.5A Adjustable Current Limit „ +/- 10% Current Limit Accuracy versus Temperature „ Undervoltage Lockout „ Thermal Shutdown „ <2µA Shutdown Current „ Fast Current limit Response Time „ 5µs to Moderate Over Currents „ 30ns to Hard Shorts „ Reverse Current Blocking „ RoHS Compliant tm General Description The FPF2165R is a load switch which provides full protection to systems and loads which may encounter large current conditions. These devices contain a 0.12Ω current-limited Pchannel MOSFET which can operate over an input voltage range of 1.8-5.5V. Internally, current is prevented from flowing when the MOSFET is off and the output voltage is higher than the input voltage. Switch control is by a logic input (ON) capable of interfacing directly with low voltage control signals. Each part contains thermal shutdown protection which shuts off the switch to prevent damage to the part when a continuous over-current condition causes excessive heating. When the switch current reaches the current limit, the parts operate in a constant-current mode to prohibit excessive currents from causing damage. The FPF2165R will not turn off after a current limit fault, but will rather remain in the constant current mode indefinitely. The minimum current limit is 150mA. These parts are av...