NCV881930MW00AR2G

Overview

The NCV881930MW00AR2G is a low quiescent current synchronous step-down (buck) voltage regulator from onsemi, designed for automotive applications. It features an integrated high-side and low-side power MOSFETs within a compact WSON-10 package. The device supports a wide input voltage range of 4.5V to 42V, delivering up to 3A output current with high efficiency across various load conditions. It incorporates programmable switching frequency, soft-start functionality, and comprehensive protection mechanisms including overcurrent, overvoltage, and thermal shutdown.

Feature Summary

• Integrated synchronous rectification with internal high-side and low-side power switches
• Wide input voltage range suitable for automotive load dump and cold crank scenarios
• Programmable switching frequency allows optimization for size and efficiency trade-offs
• Comprehensive protection suite including cycle-by-cycle current limit and thermal regulation

Applications

• Automotive infotainment system power distribution
• ADAS sensor module power supply
• Telematics control unit DC-DC conversion
• General automotive 12V/24V bus point-of-load regulation

Procurement Notes

Verify the specific suffix 'MW00AR2G' against the official datasheet to confirm pinout compatibility and tape-and-reel specifications. Ensure the ordering part number matches the exact temperature grade and packaging format required for your production line. Cross-reference with onsemi's latest release notes to confirm component availability and lifecycle status before finalizing procurement plans.

Selection Notes

Select this component when designing for automotive environments requiring robust input voltage handling up to 42V. It is suitable for applications needing moderate output currents around 3A with high efficiency. Consider the thermal performance of the WSON-10 package relative to your PCB copper area requirements. Evaluate the programmable frequency options to minimize external inductor size while maintaining acceptable ripple current levels for sensitive downstream loads.

Part Context

This part belongs to onsemi's NCV881xx series of automotive-grade synchronous buck regulators. These devices are engineered specifically for harsh automotive electrical environments, offering higher integration and reliability compared to discrete solutions. The series provides a balance of performance, protection, and compact footprint, making it a standard choice for modern vehicle electronic architectures demanding efficient power management.

Replacement Considerations

Direct replacements may include other parts from the NCV881xx family with compatible output current and input voltage ratings. Verify pin-to-pin compatibility if substituting with different package variants. Check for equivalent protection features and thermal characteristics to ensure no degradation in system reliability during replacement.