NX5P3090UKZ

Overview

The NX5P3090UKZ is a high-side power switch designed for USB PD and Type-C applications. It features an adjustable current limit ranging from 400 mA to 3.3 A, set via an external resistor on the ILIM pin. The device supports a load voltage range of 2.5 V to 5.5 V and withstands up to 29 V on the VBUS pin. Key electrical parameters include a typical on-resistance of 34 mΩ and a maximum output current of 3.3 A. It operates within a temperature range of -40°C to 85°C and utilizes a 12-WLCSP package measuring 1.65x1.35 mm.

Feature Summary

• Integrates programmable overcurrent protection with fault indication via open-drain FAULT output
• Includes built-in soft-start and surge protection to minimize inrush currents during switching
• Features logic level translation for compatibility with low-voltage processors and controllers
• Provides automatic isolation through UVLO, thermal shutdown, and reverse current protection

Applications

• USB Power Delivery (PD) port protection circuits
• Type-C load switch implementations
• VBUS protection in mobile devices and chargers
• High-side switching for peripheral power distribution

Procurement Notes

Verify the specific suffix UKZ against the required datasheet revision and RoHS compliance status. Confirm that the 12-WLCSP footprint matches the PCB layout dimensions of 1.65x1.35 mm. Ensure the design accounts for the 29 V VBUS tolerance rating for USB PD compatibility. Check for any obsolescence notices or lifecycle changes prior to finalizing procurement plans.

Selection Notes

Select this component when designing for USB PD environments requiring precise current limiting up to 3.3 A. The integrated logic level translation simplifies interface with various host controllers. Consider the 29 V transient tolerance for robust VBUS protection. The small WLCSP package is suitable for space-constrained portable electronics and compact charger designs.

Part Context

This part belongs to NXP's NX5 series of intelligent high-side switches. It is specifically optimized for USB Type-C and Power Delivery applications. The series provides integrated protection features such as reverse current blocking and thermal shutdown. It complements other NXP solutions like the PTN5150 USB PD PHY for complete charging system designs.

Replacement Considerations

NX5P3090UK: Non-lead-free variant of the same functional device.