NCV459 4 A Single Load Switch for Low Voltage Rail The NCV459 is a power load switch with very low Ron NMOSFET controlled by external logic pin, allowing optimization of battery life, and portable device autonomy. www.onsemi.com Indeed, thanks to a best in class current consumption optimization with NMOS structure, leakage currents are drastically decreased. Offering optimized leakages isolation on the ICs connected on the MARKING battery. DIAGRAM Output discharge path is proposed to eliminate residual voltages on 1 the external components connected on output pin. 45A DFNW8 Proposed in wide input voltage range from 0.75 V to 5.5 V, and a ALYW CASE 507AB very small DFNW8 3x3 mm, 0.65 pitch package. 1 Features 45A = Specific Device Code A = Assembly Location 0.75 V 5.5 V Operating Range L = Wafer Lot 23 m NMOSFET Y = Year W = Work Week Vbias Rail Input = PbFree Package DC Current up to 4 A (Note: Microdot may be in either location) Output AutoDischarge Option Active High EN Pin PINOUT DIAGRAM DFNW8, 3 x 3 mm, 0.65 pitch GATE EN Typical Applications OUT IN ADAS System EPAD OUT IN Camera Module GND VBIAS Power Management (Top View) ORDERING INFORMATION See detailed ordering and shipping information on page 10 of this data sheet. Figure 1. Typical Application Schematic Semiconductor Components Industries, LLC, 2017 1 Publication Order Number: August, 2018 Rev. 0 NCV459/DNCV459 Figure 2. Application Schematic with Vbias Connected to IN PIN FUNCTION DESCRIPTION Pin Name Pin Number Type Description GATE 1 INPUT OUT pin slew rate control (t ). rise OUT 2, 3 POWER Loadswitch output pin. GND 4 POWER Ground connection. VBIAS 5 POWER External supply voltage input. IN 6, 7 POWER Loadswitch input pin. EN 8 INPUT Enable input, logic high turns on power switch. EPAD 9 POWER Exposed pad, connect to ground potential. www.onsemi.com 2