Overview
The MC79M12BDTG is a 500 mA negative voltage regulator produced by onsemi. It is part of the MC79M00 series, designed to provide fixed negative output voltages. This specific model, MC79M12BDTG, offers a nominal output voltage of -12 V. The regulator is known for its robust design, incorporating features such as current limiting, thermal shutdown, and safe-area compensation, making it highly reliable under various operating conditions.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage (TJ = 25°C) | VO | -11.5 | -12 | -12.5 | Vdc |
| Line Regulation (TJ = 25°C) | Regline | - | - | 5.0 | mV |
| Load Regulation (TJ = 25°C) | Regload | - | - | 30 | mV |
| Input Bias Current (TJ = 25°C) | IIB | - | - | 8.0 | mA |
| Output Noise Voltage (10 Hz ≤ f ≤ 100 kHz) | Vn | - | - | 90 | μV |
| Ripple Rejection (f = 120 Hz) | RR | 54 | 60 | - | dB |
| Dropout Voltage (IO = 500 mA, TJ = 25°C) | VI−VO | - | - | 1.1 | Vdc |
| Thermal Resistance, Junction-to-Ambient | θJA | - | - | 92 | °C/W |
| Operating Junction Temperature Range | TJ | -40 | - | 125 | °C |
Key Features
- No external components required for operation.
- Internal thermal overload protection and short circuit current limiting.
- Output transistor safe-area compensation.
- Available in surface mount DPAK (DT) package and TO-220 package.
- Pb-free packages available.
- ESD protection exceeding Human Body Model 2000 V per MIL-STD-883, Method 3015 and Machine Model 200 V.
Applications
The MC79M12BDTG is suitable for a variety of applications requiring a stable negative voltage supply. These include:
- Power supplies for electronic equipment.
- Audio and video equipment.
- Medical devices.
- Industrial control systems.
- Any system requiring a reliable negative voltage regulator.
Q & A
- What is the nominal output voltage of the MC79M12BDTG?
The nominal output voltage of the MC79M12BDTG is -12 V. - What are the key protection features of the MC79M12BDTG?
The key protection features include internal thermal overload protection, short circuit current limiting, and safe-area compensation. - What packages are available for the MC79M12BDTG?
The MC79M12BDTG is available in both surface mount DPAK (DT) and TO-220 packages. - Is the MC79M12BDTG Pb-free?
Yes, Pb-free packages are available for the MC79M12BDTG. - What is the maximum output current of the MC79M12BDTG?
The maximum output current is 500 mA. - What is the operating junction temperature range for the MC79M12BDTG?
The operating junction temperature range is -40°C to +125°C. - Does the MC79M12BDTG require external components for operation?
No, the MC79M12BDTG does not require external components for operation. - What is the ripple rejection of the MC79M12BDTG at 120 Hz?
The ripple rejection at 120 Hz is 54 to 60 dB. - What is the dropout voltage of the MC79M12BDTG at 500 mA output current?
The dropout voltage at 500 mA output current is 1.1 Vdc. - Does the MC79M12BDTG have ESD protection?
Yes, the MC79M12BDTG has ESD protection exceeding Human Body Model 2000 V per MIL-STD-883, Method 3015 and Machine Model 200 V.
