onsemi

MC78M12CDTRK  

Linear & Switching Voltage Regulators

MC78M12CDTRK Description

The MC78M12CDTRK from onsemi is a fixed-output linear voltage regulator designed to deliver a stable 12V output with a maximum input voltage of 35V and an output current capability of 500mA. Housed in a DPAK (TO-252) surface-mount package, this regulator is optimized for compact PCB designs and automated assembly processes. It operates over a wide temperature range of 0°C to 125°C, making it suitable for industrial and automotive environments. With 80dB PSRR (120Hz), it effectively suppresses input noise, ensuring clean power delivery. The device includes over-temperature and short-circuit protection, enhancing reliability in demanding applications.

MC78M12CDTRK Features

• Fixed 12V Output: Ensures consistent voltage regulation without external adjustments.
• High Input Voltage Tolerance (35V): Accommodates fluctuating input sources.
• 500mA Output Current: Sufficient for powering moderate loads like sensors, microcontrollers, and small motors.
• Robust Protection: Built-in over-temperature and short-circuit safeguards prevent damage under fault conditions.
• Low Noise Performance: 80dB PSRR minimizes ripple, ideal for noise-sensitive analog circuits.
• Surface-Mount DPAK Package: Space-efficient and compatible with high-volume manufacturing.
• Wide Operating Temperature Range (0°C to 125°C): Suitable for harsh environments.

MC78M12CDTRK Applications

This regulator is ideal for:

• Industrial Control Systems: Powering PLCs, motor drivers, and instrumentation.
• Automotive Electronics: Supporting infotainment systems, sensors, and lighting modules.
• Consumer Electronics: Voltage regulation in set-top boxes, routers, and audio equipment.
• Embedded Systems: Reliable power for microcontrollers, FPGAs, and peripheral circuits.
• Noise-Sensitive Analog Circuits: Such as ADCs, DACs, and signal conditioning modules.

Conclusion of MC78M12CDTRK

The MC78M12CDTRK is a dependable linear regulator offering high noise immunity, robust protection, and a compact form factor. While marked as obsolete, its performance remains competitive for legacy designs or applications requiring a simple, no-frills 12V regulator. Its wide input range and thermal resilience make it a pragmatic choice for industrial, automotive, and embedded systems where stability and durability are critical. Designers should verify alternative solutions for new projects due to its obsolete status.

MC78M12CDTRK Documents

Download datasheets and manufacturer documentation for MC78M12CDTRK