Overview
The MC79M12CDT is a negative voltage regulator from onsemi, designed to provide a stable and reliable negative voltage output. This component is part of the MC79M00 series, which offers fixed output voltage options of −5.0 V, −8.0 V, −12 V, and −15 V. The MC79M12CDT specifically provides a nominal output voltage of −12 V. It is suitable for applications requiring a negative voltage supply with high current capability and robust protection features.
Key Specifications
| Characteristic | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Output Voltage (TJ = 25°C) | −11.5 | −12 | −12.5 | Vdc |
| Line Regulation (TJ = 25°C) | 5.0 | mV | ||
| Load Regulation (TJ = 25°C) | 30 | mV | ||
| Input Bias Current (TJ = 25°C) | 4.3 | 8.0 | mA | |
| Output Noise Voltage (TA = 25°C, 10 Hz ≤ f ≤ 100 kHz) | 40 | μV | ||
| Ripple Rejection (f = 120 Hz) | 54 | 66 | dB | |
| Dropout Voltage (IO = 500 mA, TJ = 25°C) | 1.1 | Vdc | ||
| Average Temperature Coefficient of Output Voltage | 0.2 | mV/°C | ||
| Operating Junction Temperature Range | −40 | 125 | °C | |
| Storage Junction Temperature | −65 | 150 | °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 are available.
- ESD protection exceeding Human Body Model 2000 V per MIL-STD-883, Method 3015 and Machine Model Method 200 V.
Applications
The MC79M12CDT is suitable for a variety of applications that require a stable negative voltage supply, including:
- Power supplies and voltage regulators in electronic equipment.
- Audio and video equipment requiring negative voltage rails.
- Industrial control systems and automation.
- Medical devices and equipment.
- Telecommunication systems.
Q & A
- What is the nominal output voltage of the MC79M12CDT?
The nominal output voltage of the MC79M12CDT is −12 V. - What are the key protection features of the MC79M12CDT?
The MC79M12CDT features internal thermal overload protection, short circuit current limiting, and output transistor safe-area compensation. - What are the available package options for the MC79M12CDT?
The MC79M12CDT is available in surface mount DPAK (DT) package and TO-220 package. - Does the MC79M12CDT require external components for operation?
No, the MC79M12CDT does not require external components for operation. - What is the operating junction temperature range of the MC79M12CDT?
The operating junction temperature range of the MC79M12CDT is −40°C to +125°C. - Is the MC79M12CDT ESD protected?
Yes, the MC79M12CDT has ESD protection exceeding Human Body Model 2000 V per MIL-STD-883, Method 3015 and Machine Model Method 200 V. - What is the maximum output current of the MC79M12CDT?
The MC79M12CDT can deliver output currents in excess of 0.5 A with adequate heatsinking. - What is the dropout voltage of the MC79M12CDT?
The dropout voltage of the MC79M12CDT is 1.1 Vdc at IO = 500 mA and TJ = 25°C. - What is the ripple rejection of the MC79M12CDT?
The ripple rejection of the MC79M12CDT is 54 to 66 dB at f = 120 Hz. - Is the MC79M12CDT available in Pb-free packages?
Yes, the MC79M12CDT is available in Pb-free packages.
