Overview
The MC7912ACD2TR4G is a linear voltage regulator designed by onsemi to provide a consistent negative voltage output. This regulator is part of the MC7900 series and is specifically configured to deliver a fixed output of -12V. It is suitable for applications requiring high current capability and stable voltage regulation in negative voltage configurations.
The device features a robust design with built-in protection mechanisms such as overcurrent and over-temperature protection, ensuring reliable operation under various conditions. Despite being marked as obsolete, it remains a valuable component for legacy systems and specific applications where its unique features are required.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage (Max) | -35V | V |
| Output Voltage (Fixed) | -12V | V |
| Voltage Dropout (Max) | 1.3V | V |
| Output Current | 1A | A |
| PSRR | 61dB at 120Hz | dB |
| Operating Temperature Range | 0°C to 125°C | °C |
| Package / Case | TO-263-3, D2PAK (2 Leads + Tab), TO-263AB | |
| Mounting Type | Surface Mount |
Key Features
- Fixed output at -12V, suitable for negative voltage applications.
- High PSRR of 61dB at 120Hz, ensuring good power supply ripple rejection and stable output.
- Low voltage dropout of 1.3V at 1A, enhancing performance at lower voltages.
- Able to supply an output current of 1A, making it suitable for high current requirements.
- Robust thermal performance up to 125°C.
- Built-in protection features including overcurrent and over-temperature protection.
- Compatible with surface mount technology and suitable for TO-263-3, D2PAK, and TO-263AB layouts.
Applications
- Power management in electronic circuits requiring negative voltage supply.
- Negative voltage applications in various industrial and electronic systems.
- Compact surface mount PCB designs due to its D2PAK packaging.
Q & A
- Q: What is the output voltage of the MC7912ACD2TR4G?
A: The output voltage is fixed at -12V.
- Q: What is the maximum input voltage for the MC7912ACD2TR4G?
A: The maximum input voltage is -35V.
- Q: What is the maximum output current of the MC7912ACD2TR4G?
A: The maximum output current is 1A.
- Q: What is the PSRR of the MC7912ACD2TR4G at 120Hz?
A: The PSRR is 61dB at 120Hz.
- Q: What are the built-in protection features of the MC7912ACD2TR4G?
A: The device includes overcurrent and over-temperature protection.
- Q: What is the operating temperature range of the MC7912ACD2TR4G?
A: The operating temperature range is from 0°C to 125°C.
- Q: Is the MC7912ACD2TR4G RoHS compliant?
A: Yes, the MC7912ACD2TR4G is lead-free and RoHS compliant.
- Q: What is the package type of the MC7912ACD2TR4G?
A: The package type is TO-263-3, D2PAK (2 Leads + Tab), and TO-263AB.
- Q: What are the typical applications of the MC7912ACD2TR4G?
A: It is used in power management in electronic circuits and negative voltage applications.
- Q: What is the status of the MC7912ACD2TR4G in terms of production?
A: The MC7912ACD2TR4G is marked as obsolete, and replacements or upgrades may be required due to discontinuation.
