DATA SHEET www.onsemi.com MARKING 1.5 A Ultra-Small Controlled DIAGRAM Load Switch with 1 XX Auto-Discharge Path WLCSP4 AYW CASE 567FG NCP333 XX = Specific Device Code A = Assembly Location Y = Year Description W = Work Week The NCP333 are low Ron MOSFET controlled by external logic pin, allowing optimization of battery life, and portable device PIN CONNECTIONS autonomy. 1 2 Indeed, thanks to a current consumption optimization with PMOS structure, leakage currents are eliminated by isolating connected ICs on the battery when not used. A OUT IN Output discharge path is also embedded to eliminate residual voltages on the output rail. Proposed in a wide input voltage range from 1.2 V to 5.5 V, and a B GND EN very small 0.76 x 0.76 mm WLCSP4, 0.4 pitch. Features (Top View) 1.2 V 5.5 V Operating Range ORDERING INFORMATION 55 m P MOSFET at 3.3 V See detailed ordering and shipping information on page 9 of DC Current up to 1.5 A this data sheet. Output AutoDischarge Active High EN Pin WLCSP4 0.76 x 0.76 mm This Device is PbFree, Halogen Free/BFR Free and is RoHS Compliant Applications Mobile Phones Tablets Digital Cameras GPS Portable Devices Semiconductor Components Industries, LLC, 2014 1 Publication Order Number: November, 2021 Rev. 2 NCP333/DNCP333 VOUT 8 NCP333 PVIN 2 1 2 SW A2 A1 7 B+ IN OUT AVIN NCP63xy/WDFN8 B2 B1 EN GND 4 FB U5 EN 6 5 EN MODE/PG EN AGND PGND 3 1 Figure 1. Typical Application Circuit Table 1. PIN FUNCTION DESCRIPTION Pin Name Pin Number Type Description IN A2 POWER Loadswitch input voltage connect a 0.1 F or greater ceramic capacitor from IN to GND as close as possible to the IC. GND B1 POWER Ground connection. EN B2 INPUT Enable input, logic high turns on power switch. OUT A1 OUTPUT Loadswitch output connect a 0.1 F ceramic capacitor from OUT to GND as close as possible to the IC is recommended. IN: pin A2 OUT: pin A1 Gate driver and soft start control Control logic EN: pin B2 EN block GND: pin B1 Figure 2. Block Diagram www.onsemi.com 2