onsemi

MC78M12ACDTG

MC78M12ACDTG Description

The MC78M12ACDTG from onsemi is a fixed-output linear voltage regulator designed to deliver a stable 12V output at up to 500mA of continuous current. With an input voltage range extending up to 35V, this regulator is well-suited for applications requiring reliable voltage conversion from higher input sources. Housed in a DPAK (TO-252) surface-mount package, it offers robust thermal performance and ease of integration into compact PCB designs. The device operates across a wide temperature range (0°C to 125°C) and includes critical protection features such as over-temperature and short-circuit protection, ensuring durability in demanding environments.

MC78M12ACDTG Features

• Fixed 12V Output: Provides a precise and stable voltage for consistent performance.
• High Input Voltage Tolerance (Up to 35V): Accommodates a broad range of input sources.
• 500mA Output Current: Suitable for moderate-power applications.
• Over-Temperature and Short-Circuit Protection: Enhances reliability under fault conditions.
• Low Dropout Voltage: Optimized for efficiency in linear regulation.
• 80dB PSRR (120Hz): Excellent noise rejection for sensitive circuits.
• ROHS3 Compliant & REACH Unaffected: Meets environmental and regulatory standards.
• Surface-Mount DPAK Package: Ideal for automated assembly and space-constrained designs.

MC78M12ACDTG Applications

This regulator is ideal for applications requiring a stable 12V supply, including:

• Industrial Control Systems: Powering sensors, actuators, and control logic.
• Automotive Electronics: Supporting infotainment, lighting, and auxiliary systems.
• Consumer Electronics: Voltage regulation in audio/video equipment and small appliances.
• Embedded Systems: Providing reliable power to microcontrollers and peripherals.
• Telecommunications: Ensuring consistent voltage for networking hardware.

Conclusion of MC78M12ACDTG

The MC78M12ACDTG stands out as a dependable linear voltage regulator, combining high input tolerance, robust protection features, and compact packaging. While marked as obsolete, its performance remains relevant for legacy designs or applications requiring a proven 12V solution. Engineers seeking a balance of simplicity, reliability, and efficiency in voltage regulation will find this device a practical choice, particularly in industrial and automotive environments where durability is critical. For new designs, verifying alternative active models from onsemi is recommended.