Overview
The MC78M12ACDTG is a 500 mA positive linear voltage regulator produced by onsemi. It is part of the MC78M00/MC78M00A Series, which is similar to the popular MC7800 Series but specified for half the output current. These three-terminal regulators are designed for local, on-card voltage regulation and are known for their robustness and reliability under various operating conditions.
The device features internal current limiting, thermal shutdown circuitry, and safe-area compensation for the internal pass transistor, making it highly rugged and suitable for a wide range of applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage - Max | 35 | V |
| Output Voltage Fixed | 12 | V |
| Dropout Voltage - Max | 2 | V |
| Output Current - Max | 500 | mA |
| Operating Temperature Range | 0°C to 125°C | |
| Regulator Topology | Fixed | |
| No. of Outputs | Single | |
| Output Noise | 75 µV | |
| Line Regulation | 50 mV | |
| Load Regulation | 240 mV | |
| Package Style | TO-252-3 (DPAK) | |
| Mounting Method | Surface Mount |
Key Features
- No external components required for operation.
- Internal thermal overload protection and short circuit current limiting.
- Output transistor safe-area compensation.
- High accuracy (±2%) for MC78M00A versions.
- Low dropout voltage of 2 V.
- High ripple rejection ratio.
- Operating temperature range from 0°C to 125°C.
Applications
The MC78M12ACDTG is suitable for various applications requiring stable and regulated voltage, including:
- Local, on-card voltage regulation in electronic devices.
- Automotive systems (with NCV prefix versions).
- Industrial control systems.
- Consumer electronics.
- Medical devices requiring stable power supply.
Q & A
- What is the maximum output current of the MC78M12ACDTG?
The maximum output current is 500 mA.
- What is the fixed output voltage of the MC78M12ACDTG?
The fixed output voltage is 12 V.
- What is the maximum input voltage for the MC78M12ACDTG?
The maximum input voltage is 35 V.
- Does the MC78M12ACDTG require external components for operation?
No, it does not require external components for operation.
- What is the operating temperature range of the MC78M12ACDTG?
The operating temperature range is from 0°C to 125°C.
- What is the package style of the MC78M12ACDTG?
The package style is TO-252-3 (DPAK) and it is a surface mount device.
- Does the MC78M12ACDTG have thermal protection?
- What is the dropout voltage of the MC78M12ACDTG?
The dropout voltage is 2 V.
- What is the line regulation of the MC78M12ACDTG?
The line regulation is 50 mV.
- What is the load regulation of the MC78M12ACDTG?
The load regulation is 240 mV.
