NCP102SNT1G ON Semiconductor

NCP102 Low Dropout Linear Regulator Controller The NCP102 is a low dropout linear regulator controller for applications requiring high-current and ultra low dropout voltages. The use of an external N-Channel MOSFET allows the user to adapt the device to a multitude of applications depending on system NCP102 V UVLO CC V CC I EN 15 V + EN 9.75 V - 0.8 V V CC I SOFT-S GND SOFT-S 0.8 V + - DRV FB 9.75 V 9.75 V Figure 2. Representative Block Diagram PIN FUNCTION DESCRIPTION Pin Symbol Name Description 1 EN Enable Input (Active High). Pull the EN pin below 0.8 V to disable the regulator and enter the standby mode operation. 2 GND Ground 3 FB Inverting input of the error amplifier. The output voltage is sampled by means of a resistor divider and ap plied to this pin for regulation. 4 SOFT-S Programmable soft-start. An internal current source charges the capacitor connected to this pin. The soft- start period ends once the voltage of the soft-start capacitor reaches 0.8 V. 5 DRV Gate drive for external N-Channel MOSFET. It is also the buffered output of the error amplifier. 6 V Power supply voltage input. Operating voltage range is from 4.5 to 13.5 V. A decoupling capacitor to GND CC should be used. A minimum of 0.1 F is recommended.