NCP458RFCT2G ON Semiconductor

NCP458R, NCP459 4 A Single Load Switch for Low Voltage Rail The NCP458R and NCP459 are power load switch with very low Ron NMOSFET controlled by external logic pin, allowing optimization of battery life, and portable device autonomy. NCP458R, NCP459 LS NCP458459 DCDC Converter B1 B2 Platform ICn IN OUT or C1 C2 IN OUT A2 A1 LDO Gate EN D1 D2 Vbias GND ENx EN 0 Figure 2. Application Schematic with Vbias Connected to IN and No Gate Delay PIN FUNCTION DESCRIPTION Pin Name Pin Number Type Description EN A1 INPUT Enable input, logic high turns on power switch . IN B1, C1 POWER Loadswitch input pin. VBIAS D1 POWER External supply voltage input. GATE A2 INPUT OUT pin slew rate control (t ). rise OUT B2, C2 POWER Loadswitch output pin. GND D2 POWER Ground connection.