onsemi

MC78M12CDTXM

MC78M12CDTXM Description

The MC78M12CDTXM is a fixed output linear regulator designed for a wide range of power management applications. Manufactured by onsemi, this device offers a robust and reliable solution for providing a stable 12V output at up to 500mA. The regulator is housed in a DPAK package, making it suitable for surface-mount applications and ensuring efficient thermal performance. Despite its obsolescence, the MC78M12CDTXM remains a viable option for legacy systems and specific use cases where its unique features are advantageous.

MC78M12CDTXM Features

• Fixed Output Voltage: The MC78M12CDTXM provides a fixed output voltage of 12V, ensuring consistent power delivery to connected devices.
• High Input Voltage Range: With a maximum input voltage of 35V, this regulator can handle a wide range of input voltages, making it versatile for various power sources.
• Low Dropout Voltage: A typical dropout voltage of 2V at 500mA ensures efficient operation even when the input voltage is close to the output voltage.
• Low Quiescent Current: The regulator operates with a quiescent current of only 6mA, minimizing power consumption during standby or low-load conditions.
• High PSRR: A power supply rejection ratio (PSRR) of 80dB at 120Hz helps to filter out noise from the input power supply, ensuring clean and stable output voltage.
• Protection Features: The MC78M12CDTXM includes over-temperature and short-circuit protection, safeguarding the device and connected circuits from potential damage.
• Wide Operating Temperature Range: The regulator operates reliably within a temperature range of 0°C to 125°C, making it suitable for industrial and automotive applications.
• Moisture Sensitivity Level: With an MSL rating of 1 (Unlimited), the device is highly resistant to moisture, ensuring long-term reliability in various environmental conditions.
• Compliance: The MC78M12CDTXM is REACH unaffected and classified under ECCN EAR99, ensuring compliance with international regulations.

MC78M12CDTXM Applications

The MC78M12CDTXM is ideal for a variety of applications where a stable 12V power supply is required. Its robust design and protection features make it particularly suitable for:

• Industrial Equipment: Providing stable power to sensors, actuators, and control systems in harsh industrial environments.
• Automotive Electronics: Powering electronic components in vehicles, such as ECUs, infotainment systems, and lighting controls.
• Telecommunications: Supplying power to communication modules and base stations where reliability and efficiency are critical.
• Consumer Electronics: Used in devices such as routers, modems, and set-top boxes to ensure stable operation and minimal power consumption.

Conclusion of MC78M12CDTXM

The MC78M12CDTXM is a versatile and reliable linear regulator that offers a stable 12V output at up to 500mA. Its low dropout voltage, low quiescent current, and high PSRR make it an efficient and noise-free power solution. The inclusion of over-temperature and short-circuit protection ensures the longevity and reliability of the device in various applications. Despite being marked as obsolete, the MC78M12CDTXM remains a valuable component for legacy systems and specific applications where its unique features are essential. Its wide operating temperature range and moisture sensitivity level further enhance its suitability for demanding environments. For applications requiring a stable and efficient 12V power supply, the MC78M12CDTXM is a proven and reliable choice.