Overview
The MC78M12ABDTRK is a 500 mA positive voltage regulator produced by onsemi. This component is part of the MC78M00 series, which is designed for local, on-card voltage regulation. It is known for its robust performance and reliability under various operating conditions. The MC78M12ABDTRK is packaged in a DPAK (TO-252-3) case, making it suitable for surface mount applications. Despite being marked as obsolete, it remains a significant component in legacy systems and specific industrial applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Configuration | Positive | - |
| Operating Temperature | -40°C to 125°C | °C |
| Voltage - Input (Max) | 35 | V |
| Current - Output | 500 | mA |
| Voltage - Output (Fixed) | 12 | V |
| Package / Case | TO-252-3, DPAK (2 Leads + Tab), SC-63 | - |
| Mounting Type | Surface Mount | - |
| Protection Features | Over Temperature, Short Circuit | - |
| Peak Output Current (TJ = 25°C) | 700 | mA |
| Short Circuit Current Limit (TJ = 25°C, VI = 35 V) | 50 | mA |
| Average Temperature Coefficient of Output Voltage | ±0.2 | mV/°C |
Key Features
- No External Components Required: The MC78M12ABDTRK operates without the need for additional external components, simplifying the design process.
- Internal Thermal Overload Protection: This feature ensures the regulator shuts down in case of overheating, protecting the device from damage.
- Internal Short Circuit Current Limiting: The regulator limits the output current in case of a short circuit, enhancing reliability and safety.
- Output Transistor Safe-Area Compensation: This ensures the internal pass transistor operates within safe limits, preventing damage due to excessive current or voltage.
- High Accuracy: The MC78M12ABDTRK offers high accuracy in output voltage regulation, making it suitable for precise voltage requirements.
Applications
The MC78M12ABDTRK is suitable for various applications requiring stable and regulated 12V power supply. These include:
- Local, on-card voltage regulation in electronic devices.
- Industrial control systems where reliable voltage regulation is crucial.
- Legacy systems that still utilize this component for compatibility reasons.
- Automotive and aerospace applications where robust and reliable voltage regulation is necessary.
Q & A
- What is the output voltage of the MC78M12ABDTRK?
The output voltage of the MC78M12ABDTRK is fixed at 12V.
- What is the maximum input voltage for the MC78M12ABDTRK?
The maximum input voltage for the MC78M12ABDTRK is 35V.
- What is the maximum output current of the MC78M12ABDTRK?
The maximum output current of the MC78M12ABDTRK is 500mA, with a peak output current of 700mA at 25°C.
- What are the protection features of the MC78M12ABDTRK?
The MC78M12ABDTRK features internal thermal overload protection and short circuit current limiting.
- What is the operating temperature range of the MC78M12ABDTRK?
The operating temperature range of the MC78M12ABDTRK is -40°C to 125°C.
- What package type is the MC78M12ABDTRK available in?
The MC78M12ABDTRK is packaged in a DPAK (TO-252-3) case.
- Is the MC78M12ABDTRK suitable for surface mount applications?
- Does the MC78M12ABDTRK require external components to operate?
No, the MC78M12ABDTRK does not require external components to operate.
- What is the average temperature coefficient of output voltage for the MC78M12ABDTRK?
The average temperature coefficient of output voltage for the MC78M12ABDTRK is ±0.2 mV/°C.
- Is the MC78M12ABDTRK still available for purchase?
Although the MC78M12ABDTRK is marked as obsolete, it may still be available from some suppliers or through legacy stock.
