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NX3P190UK,012

NX3P190UK,012 Description

The NX3P190UK,012 is a high-side power switch from NXP Semiconductors, designed for general-purpose load switching applications. This P-channel MOSFET-based IC integrates a single output with a 1:1 input-to-output ratio, supporting load voltages from 1.1V to 3.6V and delivering up to 500mA of continuous current. Packaged in a compact 4WLCSP (Wafer-Level Chip-Scale Package), it is optimized for space-constrained, surface-mount designs. Although marked as obsolete, it remains a reliable choice for legacy systems due to its slew rate control, which minimizes EMI and inrush current. The device operates without an external supply voltage, simplifying power management in low-voltage circuits.

NX3P190UK,012 Features

• High-Side Configuration: Enables efficient load switching with minimal voltage drop.
• Low Rds(On): 65mΩ typical conduction resistance ensures high efficiency and reduced power dissipation.
• Slew Rate Control: Mitigates voltage transients and EMI, improving system reliability.
• Wide Voltage Range: Compatible with 1.1V–3.6V loads, ideal for battery-powered and portable devices.
• Compact 4WLCSP Package: Saves PCB space in high-density designs.
• RoHS3 & REACH Compliant: Meets environmental and regulatory standards.
• On/Off Interface: Simple logic-level control for easy integration.

NX3P190UK,012 Applications

• Portable Electronics: Power management in smartphones, tablets, and wearables due to low-voltage operation.
• IoT Devices: Efficient load switching for sensors and wireless modules in energy-sensitive applications.
• USB Power Distribution: Protects downstream circuits in USB hubs and peripherals.
• Battery-Powered Systems: Extends battery life in medical devices and handheld instruments through low Rds(On).
• Legacy Designs: Suitable for maintaining or upgrading older systems requiring proven performance.

Conclusion of NX3P190UK,012

The NX3P190UK,012 excels in low-voltage, high-efficiency switching with its compact footprint and slew rate control. While obsolete, its low conduction loss, robust performance, and ease of use make it a pragmatic choice for legacy or cost-sensitive designs. Engineers targeting portable, battery-driven, or space-constrained applications will find its balance of size and functionality advantageous, despite newer alternatives in the market.