Overview
The MC7812ACTG is a monolithic integrated circuit designed as a fixed-voltage regulator, produced by onsemi. This device is part of the MC78XX series, which is widely used for local, on-card regulation in various applications. The MC7812ACTG is specifically designed to provide a stable output voltage of 12 volts. It features internal current limiting, thermal shutdown, and safe-area compensation, ensuring reliable operation under different load conditions.
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 |
| Short Circuit Current Limit (TA = 25°C) | ISC | - | - | 0.2 | A |
| Peak Output Current (TJ = 25°C) | Imax | - | - | 2.2 | A |
| Average Temperature Coefficient of Output Voltage | TCVO | - | - | -0.8 | mV/°C |
Key Features
- Output current in excess of 1.0 A with adequate heatsinking.
- No external components required for operation.
- Internal current limiting and thermal shutdown for protection.
- Safe-area compensation for reliable operation.
- Can be used with external components to obtain adjustable voltages and currents.
- Low dropout voltage and high ripple rejection.
- Operating junction temperature range from 0°C to 125°C.
Applications
The MC7812ACTG is suitable for a wide variety of applications, including:
- Local, on-card voltage regulation in electronic devices.
- Power supplies for industrial and consumer electronics.
- Automotive systems requiring stable voltage regulation.
- Telecommunication equipment and networking devices.
- Medical devices and equipment requiring precise voltage control.
Q & A
- What is the output voltage of the MC7812ACTG?
The output voltage of the MC7812ACTG is 12 volts.
- What is the maximum output current of the MC7812ACTG?
The MC7812ACTG can deliver an output current in excess of 1.0 A with adequate heatsinking.
- Does the MC7812ACTG require external components for operation?
No, the MC7812ACTG does not require external components for operation.
- What are the key protection features of the MC7812ACTG?
The MC7812ACTG features internal current limiting and thermal shutdown for protection.
- What is the operating junction temperature range of the MC7812ACTG?
The operating junction temperature range of the MC7812ACTG is from 0°C to 125°C.
- Can the MC7812ACTG be used to obtain adjustable voltages and currents?
- What is the quiescent current of the MC7812ACTG?
The quiescent current of the MC7812ACTG is typically 3.4 mA to 8.0 mA.
- What is the short circuit current limit of the MC7812ACTG?
The short circuit current limit of the MC7812ACTG is 0.2 A.
- What is the average temperature coefficient of output voltage for the MC7812ACTG?
The average temperature coefficient of output voltage for the MC7812ACTG is -0.8 mV/°C.
- In what types of applications is the MC7812ACTG commonly used?
The MC7812ACTG is commonly used in local, on-card voltage regulation, power supplies, automotive systems, telecommunication equipment, and medical devices.
