NCP339BFCT2G

Overview

The NCP339BFCT2G is a high-side MOSFET gate driver and load switch manufactured by onsemi. It features a PMOS structure with a 3A output current capability and operates within a supply voltage range of 1.2V to 5.5V. The device includes a discharge path and reverse blocking control to eliminate leakage currents when the output voltage exceeds the input voltage. Key electrical parameters include a maximum rise time of 2.7ms and a fall time of 1.5ms. It functions reliably across an operating temperature range of -40°C to +85°C and is housed in a compact WLCSP6 package.

Feature Summary

• Integrates high-side switching with automatic reverse blocking to prevent backflow leakage.
• Features a dedicated discharge path for controlled power-down sequences.
• Utilizes a low-profile WLCSP6 package to minimize printed circuit board footprint.

Applications

• Battery-powered portable electronic devices requiring optimized power management
• Load switching applications in mobile communication equipment
• Power distribution circuits in consumer electronics

Procurement Notes

Verify the specific suffix BFCT2G against the official onsemi datasheet to confirm package type, tape-and-reel specifications, and environmental compliance status. Ensure that the ordering information matches the exact part number variant required for your design, as suffixes often denote critical manufacturing or packaging differences.

Selection Notes

Select this component for designs requiring a compact, high-current high-side switch with integrated reverse protection. The 1.2V minimum operating voltage makes it suitable for low-voltage battery systems. Consider the thermal performance within the WLCSP6 package and ensure the PCB layout supports the required current handling capabilities for continuous operation.

Part Context

This component belongs to the NCP339 series of load switches from onsemi. The series is designed to provide efficient power management solutions for portable applications. The NCP339BFCT2G specifically represents a version optimized for surface-mount assembly with defined electrical characteristics for high-side switching tasks.

Replacement Considerations

Consult onsemi documentation for direct pin-compatible alternatives within the NCP339 family. Verify that any substitute maintains the same 3A current rating, voltage range, and reverse blocking functionality before integration into existing designs.

FAQ

How does the NCP339BFCT2G handle reverse current flow?

The device automatically activates reverse blocking control when the OUT pin voltage exceeds the IN pin voltage, effectively eliminating leakage current from OUT to IN.

What is the purpose of the discharge path in this component?

The integrated discharge path allows for controlled dissipation of charge stored in the load capacitance during shutdown, ensuring safe and predictable power-off behavior.