NCP439 Datasheet - ON Semiconductor

NCP439 2A Very Low Ron Switches

Pin Name Pin Number Type IN A2 POWER GND EN OUT B1 POWER B2 INPUT A1 OUTPUT Description Load *switch input voltage; connect a 0.1 mF or greater ceramic capacitor from IN to GND as close as possible to the IC. Ground connection. Enable input, logic high turns on power switch. Load

NCP439 2A Very Low Ron Switches at Low Vin Voltage The NCP439 is a very low Ron MOSFET controlled by external logic pin, allowing optimization of battery life, and portable device autonomy. This load switch is a best in class in term of RDS(on) optimization at low VIN voltage. Due to a current consumption optimization with PMOS structure, leakage currents are eliminated by isolating connected IC’s on the battery when not used. Output discharge path is also embedded to eliminate residual voltage.

NCP439 Features

* 1 V

* 3.6 V Operating Range

* 37 mW P MOSFET at 1.8 V

* DC Current Up to 2 A

* Output Auto

* Discharge

* Active High EN Pin

* WLCSP4 0.96 x 0.96 mm

* This is a Pb

* Free Device Typical Applications

* Mobile Phones