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NCV4279A50D1R2G

NCV4279A50D1R2G Description

The NCV4279A50D1R2G from onsemi is a fixed-output linear voltage regulator designed for automotive and industrial applications requiring stable 5V power delivery. This surface-mount IC integrates a single positive regulator with a 150mA output current capability and a wide input voltage range up to 45V, making it suitable for harsh electrical environments. Its low dropout voltage (0.5V @ 100mA) ensures efficient operation even with marginal input voltages. The device features quiescent current as low as 250 µA, reducing power consumption in standby modes. Packaged in an 8-pin SOIC with tape-and-reel (TR) delivery, it complies with ROHS3 and REACH environmental standards, though it is marked as obsolete.

NCV4279A50D1R2G Features

• Automotive-Grade Reliability: Qualified for automotive applications with robust protection against reverse polarity, short circuits, and over-temperature conditions.
• Integrated Reset Function: Simplifies system monitoring by providing a reset signal during undervoltage events.
• Low Quiescent Current: 250 µA typical, ideal for battery-powered or energy-sensitive designs.
• High Input Voltage Tolerance: Supports up to 45V, accommodating load-dump scenarios common in automotive systems.
• Compact & Robust: MSL1 (Unlimited) moisture sensitivity ensures long shelf life and ease of handling.
• Protection Features: Includes over-temperature shutdown, reverse polarity protection, and short-circuit safeguarding.

NCV4279A50D1R2G Applications

• Automotive Electronics: Power management for infotainment, sensors, and body control modules.
• Industrial Control Systems: Reliable voltage regulation for PLCs, actuators, and instrumentation.
• Battery-Powered Devices: Low Iq makes it suitable for always-on subsystems in portable equipment.
• Aftermarket Upgrades: Ideal for retrofitting legacy 12V/24V systems with modern 5V logic.

Conclusion of NCV4279A50D1R2G

The NCV4279A50D1R2G excels in demanding environments with its high input tolerance, integrated protections, and automotive-grade durability. While obsolete, its combination of low dropout, reset functionality, and robust design makes it a compelling choice for legacy or niche applications requiring dependable 5V regulation. Engineers should evaluate alternative onsemi solutions for new designs but may leverage this IC for proven performance in existing systems.