ON Semiconductor MC78M15CDTG 15V 500mA Linear Voltage Regulator TO-252-3

The ON Semiconductor MC78M15CDTG is a robust, fixed-positive linear voltage regulator, delivering a stable 15V output at up to 500mA. As part of the widely trusted 7800 series, it is specified for half the output current of its counterparts, making it an ideal choice for on-card, local voltage regulation where high reliability and simplicity are paramount.

This 3-terminal device features comprehensive internal protection, including current limiting and thermal shutdown circuitry. Combined with safe-area compensation for the internal pass transistor, these protections make the regulator remarkably rugged under most operating conditions. It requires no external components for basic operation, offering a highly accurate ±2% output tolerance for consistent performance.

Designed for surface-mount assembly, the regulator accepts a wide input voltage range of 23V to 35V, making it suitable for stepping down common industrial voltages. Its maximum output current of 500mA is achievable with adequate heat-sinking, ensuring stable operation in demanding environments.

Key Features & Specifications

• Output Voltage: Fixed at 15V
• Max Output Current: 500mA
• Input Voltage Range: 23V to 35V
• Accuracy: High ±2% tolerance
• Protection: Internal current limiting and thermal shutdown
• Mounting Type: Surface Mount (TO-252-3/DPAK package)
• Operating Temperature Range: 0°C to +125°C
• External Components: None required for basic operation

This component is a fundamental building block for creating clean, regulated power rails in a vast array of electronic applications, from automotive control modules to industrial power management systems.