APL3512

APL3512 Power-Distribution Switches with Soft Start Features 90mΩ High Side MOSFET 2A Continuous Current Soft-Start Time Programmable by External Capacitor Wide Supply Voltage Range: 2.7V to 5.5V Current-Limit and Short-Circuit Protections Under-Voltage Lockout Protection Reverse Current Blocking when Switch Disabled Over-Temperature Protection Logic Level Enable Input APL3512A: Active High APL3512B: Active Low Lead Free and Green Devices Available (RoHS Compliant) General Description The APL3512A/B is a power-distribution switch with some protection functions that can deliver current up to 2A. The device incorporates a 90mΩ N-channel MOSFET power switch that is controlled by an enable logic pin and has a SS pin dedicated to soft-start ramp-up rate control that can be used in application where the inrush current is concerned. The device integrates some protection features, including current-limit protection, short-circuit protection, overtemperature protection, and UVLO. The current-limit and short-circuit protection can protect down-stream devices from catastrophic failure by limiting the output current at current-limit threshold during over-load or short-circuit events. When VOUT drops below VIN-1.5V the devices limit the current to a lower and safe level. The over-temperature protection function shuts down the N-channel MOSFET power switch when the junction temperature rises beyond 140oC and will automatically turns on the power switch when the temper...