DATA SHEET www.onsemi.com MARKING 2A Ultra-Small Controlled DIAGRAM Load Switch with 1 XX Auto-Discharge Path WLCSP4 AYW CASE 567FG NCP334, NCP335 XX = Specific Device Code A = Assembly Location The NCP334 and NCP335 are low Ron MOSFET controlled by Y = Year external logic pin, allowing optimization of battery life, and portable W = Work Week device autonomy. Indeed, due to a current consumption optimization with PMOS PIN DIAGRAM structure, leakage currents are eliminated by isolating connected ICs on the battery when not used. 12 Output discharge path is also embedded to eliminate residual voltages on the output rail in the NCP335. Proposed in wide input voltage range from 1.2 V to 5.5 V, and a very A OUT IN small 0.96 x 0.96 mm WLCSP4, 0.5 mm pitch. Features 1.2 V 5.5 V Operating Range 47 m P MOSFET at 3.3 V B GND EN DC Current Up to 2 A Output Autodischarge (NCP335) (Top View) Active high EN pin WLCSP4 0.96 x 0.96 mm ORDERING INFORMATION ESD Ratings: 4 kV Human Body Model, 2 kV CDM, See detailed ordering, marking and shipping information on 250 V Machine Model page 9 of this data sheet. These are PbFree Devices Typical Applications Mobile Phones Tablets Digital Cameras GPS Portable Devices Semiconductor Components Industries, LLC, 2012 1 Publication Order Number: November, 2021 Rev. 3 NCP334/DNCP334, NCP335 VOUT U5 2 1 2 SW A2 A1 7 B+ IN OUT AVIN NCP63xy/WDFN8 B2 B1 EN GND 4 FB NCP335 EN 5 6 EN MODE/PG EN Figure 1. Typical Application Circuit PIN FUNCTION DESCRIPTION Pin Name Pin Number Type Description IN A2 POWER Loadswitch input voltage connect a 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 1 F ceramic capacitor from OUT to GND as close as pos- sible to the IC is recommended. BLOCK DIAGRAM IN: Pin A2 OUT: Pin A1 Gate driver and soft start control Control logic EN: Pin B2 EN block Optional: NCP335 GND: Pin B1 Figure 2. Block Diagram www.onsemi.com 2 3 AGND 8 PVIN 1 PGND