Overview
The MC78M08BDTG is a positive linear voltage regulator from onsemi, part of the MC78M00/MC78M00A series. This regulator is designed to provide a fixed output voltage of 8.0 V and is specified for an output current of up to 500 mA. It is similar to the MC7800 series but with half the output current. The MC78M08BDTG is intended for local, on-card voltage regulation and is known for its ruggedness under various operating conditions due to internal current limiting, thermal shutdown circuitry, and safe-area compensation for the internal pass transistor.
Key Specifications
| Characteristic | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Output Voltage (TJ = 25°C) | 7.70 | 8.0 | 8.30 | Vdc |
| Output Voltage Variation (10.5 Vdc ≤ VI ≤ 23 Vdc, 5.0 mA ≤ IO ≤ 350 mA) | 7.7 | - | 8.3 | Vdc |
| Line Regulation (TJ = 25°C, 10.5 Vdc ≤ VI ≤ 25 Vdc, IO = 200 mA) | - | 6.0 | 50 | mV |
| Load Regulation (TJ = 25°C, 5.0 mA ≤ IO ≤ 500 mA) | - | - | 20 | mV |
| Peak Output Current (TJ = 25°C) | - | 700 | - | mA |
| Dropout Voltage (TJ = 25°C) | - | 2.0 | - | Vdc |
| Input Bias Current (TJ = 25°C) | - | 3.2 | 6.0 | mA |
| Temperature Range | -40°C | - | 125°C | °C |
| Package | - | - | DPAK-3, TO-220 | - |
Key Features
- No external components required for operation.
- Internal thermal overload protection to prevent overheating.
- Internal short circuit current limiting to protect against short circuits.
- Output transistor safe-area compensation for enhanced reliability.
- High accuracy options available (±2%) for certain voltage models.
- Pb-Free packages available, making it environmentally friendly.
- High Power Supply Rejection Ratio (PSRR) of 80 dB at 120 Hz.
Applications
The MC78M08BDTG is suitable for a variety of applications requiring stable and regulated voltage supply. These include:
- Local, on-card voltage regulation in electronic devices.
- Industrial control systems.
- Consumer electronics.
- Automotive systems.
- Telecommunication equipment.
Q & A
- What is the output voltage of the MC78M08BDTG?
The output voltage of the MC78M08BDTG is 8.0 V.
- What is the maximum output current of the MC78M08BDTG?
The maximum output current is 500 mA.
- Does the MC78M08BDTG require external components for operation?
No, the MC78M08BDTG does not require external components for operation.
- What is the temperature range for the MC78M08BDTG?
The temperature range is from -40°C to 125°C.
- What type of packages are available for the MC78M08BDTG?
The MC78M08BDTG is available in DPAK-3 and TO-220 packages.
- Does the MC78M08BDTG have thermal protection?
- What is the dropout voltage of the MC78M08BDTG?
The dropout voltage is 2.0 V.
- What is the Power Supply Rejection Ratio (PSRR) of the MC78M08BDTG?
The PSRR is 80 dB at 120 Hz.
- Is the MC78M08BDTG Pb-Free?
- What are some common applications for the MC78M08BDTG?
It is used in industrial control systems, consumer electronics, automotive systems, and telecommunication equipment.
