NCP392BRFCCT1G

Overview

The NCP392BRFCCT1G is a high-performance, low-noise Low Dropout (LDO) voltage regulator manufactured by onsemi. It features an ultra-low noise architecture designed for sensitive analog and RF applications. The device provides a fixed output voltage of 1.8V with a maximum load current capability of 300mA. It incorporates a high Power Supply Rejection Ratio (PSRR) to effectively suppress input ripple and noise across a wide frequency range. The regulator includes built-in protection mechanisms such as thermal shutdown and current limiting to ensure reliable operation under fault conditions. It is housed in a compact WLCSP package suitable for space-constrained designs.

Feature Summary

• Ultra-low noise performance optimized for RF and audio circuits
• High PSRR for effective power supply noise rejection
• Integrated thermal shutdown and current limit protection

Applications

• RF front-end modules requiring clean power supplies
• Wireless communication devices
• Portable consumer electronics with sensitive analog sections

Procurement Notes

Verify the complete part number including suffixes against official onsemi documentation to confirm specific tape-and-reel quantities and packaging variants. Ensure compatibility with the target PCB footprint for the WLCSP package. Cross-reference the datasheet revision date to confirm the latest electrical characteristics and ordering information before finalizing procurement.

Selection Notes

Select this component when low noise and high PSRR are critical requirements for powering sensitive downstream circuitry. The fixed 1.8V output suits systems operating at this specific logic or analog rail voltage. Consider the 300mA current limit when sizing for peak load demands. The WLCSP package offers a small form factor advantage over traditional SOT packages but requires appropriate assembly processes for flip-chip technology.

Part Context

This LDO belongs to onsemi's portfolio of precision voltage regulators designed for modern portable and wireless applications. It complements other low-dropout regulators in the series that offer different output voltages or current capabilities. The device addresses the increasing demand for clean power in miniaturized electronic systems where noise immunity is paramount for signal integrity.

Replacement Considerations

Check for direct pin-compatible alternatives within the same family offering different output voltages if system requirements change. Verify equivalent noise specifications and current ratings when considering third-party replacements to maintain performance parity in sensitive RF paths.