Overview
The MC7812ACD2T is a monolithic integrated circuit designed as a fixed-voltage regulator, produced by onsemi. This device is part of the MC78XX series and is specifically configured to provide a stable output voltage of 12 volts. It is widely used in various applications requiring a reliable and efficient voltage regulation.
Key Specifications
| Characteristic | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Output Voltage (TJ = 25°C) | 11.5 | 12 | 12.5 | Vdc |
| Output Voltage (5.0 mA ≤ IO ≤ 1.0 A, PD ≤ 15 W) | 11.5 | 12 | 12.5 | Vdc |
| Line Regulation (TJ = 25°C) | - | - | 6.0 | mV |
| Dropout Voltage (IO = 1.0 A, TJ = 25°C) | - | - | 2.0 | Vdc |
| Output Noise Voltage (TA = 25°C) | - | - | 10 | μV/VO |
| Output Resistance (f = 1.0 kHz) | - | - | 1.1 | mΩ |
| Short Circuit Current Limit (TA = 25°C) | - | - | 0.2 | A |
| Peak Output Current (TJ = 25°C) | - | - | 2.2 | A |
| Average Temperature Coefficient of Output Voltage | - | - | -0.8 | mV/°C |
| Max Input Voltage | - | - | 35 | Vdc |
| Max Operating Temperature | - | - | 125 | °C |
Key Features
- Fixed Output Voltage: The MC7812ACD2T provides a stable output voltage of 12 volts, making it suitable for applications requiring a precise voltage level.
- High Current Capability: It can supply up to 1.0 A of output current, making it suitable for a variety of power requirements.
- Low Dropout Voltage: The device has a dropout voltage of 2.0 V, which is beneficial for efficient power management.
- Low Output Noise: The output noise voltage is typically 10 μV/VO, ensuring a clean and stable output.
- Thermal Protection: The device includes thermal shutdown and current limiting features to protect against overheating and overcurrent conditions.
- Compact Package: Available in the D2PAK-3 package, it is suitable for space-constrained designs.
Applications
The MC7812ACD2T is versatile and can be used in a wide range of applications, including:
- Local Power Supplies: On-card voltage regulation in various electronic devices.
- Industrial Control Systems: Providing stable voltage for control circuits and sensors.
- Consumer Electronics: Powering components in audio, video, and other consumer devices.
- Automotive Systems: Used in automotive electronics where reliable voltage regulation is crucial.
Q & A
- What is the output voltage of the MC7812ACD2T?
The output voltage of the MC7812ACD2T is 12 volts. - What is the maximum output current of the MC7812ACD2T?
The maximum output current is 1.0 A. - What is the dropout voltage of the MC7812ACD2T?
The dropout voltage is 2.0 V. - What is the maximum input voltage for the MC7812ACD2T?
The maximum input voltage is 35 Vdc. - What is the maximum operating temperature of the MC7812ACD2T?
The maximum operating temperature is 125°C. - Does the MC7812ACD2T have thermal protection?
Yes, it includes thermal shutdown and current limiting features. - What package is the MC7812ACD2T available in?
The device is available in the D2PAK-3 package. - What are some common applications of the MC7812ACD2T?
It is used in local power supplies, industrial control systems, consumer electronics, and automotive systems. - How does the MC7812ACD2T handle output noise?
The device has a low output noise voltage, typically 10 μV/VO. - Is the MC7812ACD2T suitable for high-current applications?
Yes, it can supply up to 1.0 A of output current.
