NCV451 3A Ultra-Small Low Ron and Controlled Load Switch with Auto-Discharge Path The NCV451 is a very low Ron MOSFET controlled by external logic pin, allowing optimization of battery life, and portable device www.onsemi.com autonomy. Indeed, due to a current consumption optimization with NMOS structure, leakage currents are eliminated by isolating connected IC on MARKING the battery when not used. DIAGRAM Output discharge path is also embedded to eliminate residual 1 1 voltages on the output rail. 4A M DFNW6 Proposed in a wide input voltage range from 0.75 V to 5.5 V, in a CASE 507AF small DFNW6 2.2 x 2 mm, 0.65 pitch package. Features 4A = Specific Device Code 0.75 V 5.5 V Operating Range M = Date Code = PbFree Package 21 m N MOSFET from 3.6 V to 5.5 V (Note: Microdot may be in either location) 22 m N MOSFET from 1 V to 3.3 V DC Current Up to 3 A Output AutoDischarge PINOUT DIAGRAM Active High EN Pin DFNW6 2.2 x 2 mm, 0.65 pitch GND EN These Devices are PbFree, Halogen Free/BFR Free and are RoHS OUT EPAD IN Compliant OUT IN Typical Applications (Top View) ADAS System Camera Module ORDERING INFORMATION Power Management See detailed ordering, marking and shipping information on page 8 of this data sheet. Semiconductor Components Industries, LLC, 2017 1 Publication Order Number: August, 2018 Rev. 0 NCV451/DNCV451 Figure 1. Typical Application Circuit PIN FUNCTION DESCRIPTION Pin Name Pin Number Type Description IN 4, 5 POWER Loadswitch input voltage connect a 1 F or greater ceramic capacitor from IN to GND as close as possible to the IC. GND 1 POWER Ground connection. EN 6 INPUT Enable input, logic high turns on power switch. OUT 2, 3 OUTPUT Loadswitch output connect a 1 F ceramic capacitor from OUT to GND as close as possible to the IC is recommended. EPAD 7 POWER Exposed pad, connect to ground potential. BLOCK DIAGRAM IN: Pin 4, 5 OUT: Pin 2, 3 Charge Pump and soft start control Control logic EN: Pin 6 EN Block GND: Pin 1 Figure 2. Block Diagram www.onsemi.com 2