Overview
The MC7812BD2TR4G is a linear voltage regulator produced by onsemi. This component is part of the MC78XX series, known for its high performance and reliability in voltage regulation applications. The MC7812BD2TR4G is specifically designed to provide a stable output voltage of 12 volts, making it suitable for a wide range of electronic systems that require precise voltage regulation.
This regulator features internal current limiting, thermal shutdown, and safe area protection, ensuring robust operation under various conditions. It is available in the D2PAK package, which is lead-free and suitable for surface-mount applications.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage (TJ = 25°C) | VO | 11.5 | 12 | 12.5 | Vdc |
| Output Voltage (5.0 mA ≤ IO ≤ 1.0 A, PD ≤ 15 W) | VO | 11.4 | 12 | 12.6 | Vdc |
| Line Regulation (TJ = 25°C) | Regline | - | - | 7.5 | mV |
| Load Regulation (TJ = 25°C) | Regload | - | - | 1.6 | mV |
| Quiescent Current | IB | 3.4 | - | 8.0 | mA |
| Peak Output Current (TJ = 25°C) | Imax | - | - | 2.2 | A |
| Dropout Voltage (IO = 1.0 A, TJ = 25°C) | VI - VO | - | - | 2.0 | Vdc |
| Output Noise Voltage (TA = 25°C) | Vn | - | - | 10 | μV/VO |
| Output Resistance (f = 1.0 kHz) | rO | - | - | 1.1 | mΩ |
| Short Circuit Current Limit (TA = 25°C) | ISC | - | - | 0.2 | A |
| Average Temperature Coefficient of Output Voltage | TCVO | - | - | -0.8 | mV/°C |
Key Features
- Internal Current Limiting: Protects the device from overcurrent conditions.
- Thermal Shutdown: Prevents the device from overheating by shutting down when the junction temperature exceeds a certain threshold.
- Safe Area Protection: Ensures the device operates within safe limits to prevent damage.
- Low Dropout Voltage: Allows the regulator to maintain its output voltage even when the input voltage is close to the output voltage.
- High Ripple Rejection: Effectively filters out noise and ripple from the input voltage.
- Lead-Free D2PAK Package: Suitable for surface-mount applications and compliant with lead-free requirements.
Applications
- Power Supplies: Used in various power supply designs where a stable 12V output is required.
- Industrial Control Systems: Suitable for use in industrial control systems that need reliable voltage regulation.
- Automotive Systems: Can be used in automotive applications where a stable voltage is crucial.
- Consumer Electronics: Found in consumer electronics such as audio equipment, medical devices, and other electronic systems requiring stable voltage regulation.
Q & A
- What is the output voltage of the MC7812BD2TR4G?
The output voltage of the MC7812BD2TR4G is 12 volts.
- What is the typical quiescent current of the MC7812BD2TR4G?
The typical quiescent current is 3.4 mA.
- What is the dropout voltage of the MC7812BD2TR4G?
The dropout voltage is 2.0 volts.
- What is the peak output current of the MC7812BD2TR4G?
The peak output current is 2.2 amps.
- What is the average temperature coefficient of output voltage?
The average temperature coefficient of output voltage is -0.8 mV/°C.
- Does the MC7812BD2TR4G have internal current limiting?
Yes, the MC7812BD2TR4G has internal current limiting.
- What package type is the MC7812BD2TR4G available in?
The MC7812BD2TR4G is available in the D2PAK package.
- Is the MC7812BD2TR4G lead-free?
Yes, the MC7812BD2TR4G is lead-free.
- What are some common applications of the MC7812BD2TR4G?
Common applications include power supplies, industrial control systems, automotive systems, and consumer electronics.
- What is the ripple rejection of the MC7812BD2TR4G?
The ripple rejection is typically around 56 dB.
