EmbeddedRelated.com
The 2026 Embedded Online Conference
NX20P3483UKAZ

NX20P3483UKAZ

NXP Semiconductors
USB Interface IC USB Sink and Source Combo Power Switch
866 in stock

Overview

The NX20P3483 is a highly integrated USB Power Delivery (PD) load switch designed for USB Type-C applications. It functions as a single-chip combo solution for both sink and source power paths, supporting voltages up to 20V and continuous currents up to 5A.

Why Choose This Part

This IC features integrated slew rate control to prevent inrush current issues and a high-voltage LDO with reverse voltage protection. Its small WLCSP42 footprint minimizes PCB area while providing robust safety features including over-voltage, over-temperature, and under-voltage lockout.

Applications

USB Type-C Charging Ports
Managing power delivery and protection for laptops, tablets, and high-end smartphones using the USB-C standard.
Power Banks
Controlling the bidirectional power flow between the internal battery and external devices via a single USB-C port.
Docking Stations
Providing high-current power distribution and protection for multiple peripherals and host charging.

Getting Started

Integration requires an I2C-capable host controller to manage power path states and monitor fault conditions via the four selectable I2C addresses. For prototyping, ensure the PCB layout follows NXP's guidelines for thermal management of the WLCSP42 package under high-current loads.

Also Consider

TPS25750 TITexas Instruments - Offers an integrated USB PD controller with power path management for simplified stand-alone operation.
FUSB302B ONonsemi - A popular choice for adding USB PD protocol support when using an external power switch.
The 2026 Embedded Online Conference