Overview
The MC78M12ABDTRKG is a 500 mA positive voltage regulator from onsemi, part of the MC78M00/MC78M00A series. These regulators are designed for local, on-card voltage regulation and are similar to the MC7800 series but with half the output current. They are known for their ruggedness and reliability under various operating conditions.
The MC78M12ABDTRKG specifically provides a regulated output voltage of 12V and is available in a TO-252 (DPAK) package. It features internal current limiting, thermal shutdown circuitry, and safe-area compensation for the internal pass transistor, ensuring robust performance.
Key Specifications
| Characteristics | Symbol | Min | Max | Unit | |
|---|---|---|---|---|---|
| Output Voltage (TJ = 25°C) | VO | 11.50 | 11.76 | 12.00 | Vdc |
| Output Voltage Variation (14.5 Vdc ≤ VI ≤ 27 Vdc, 5.0 mA ≤ IO ≤ 350 mA) | VO | 11.4 | - | 12.6 | Vdc |
| Line Regulation (TJ = 25°C, 14.5 Vdc ≤ VI ≤ 30 Vdc, IO = 200 mA) | Regline | - | - | 50 | mV |
| Load Regulation (TJ = 25°C, 5.0 mA ≤ IO ≤ 500 mA) | Regload | - | - | 25 | mV |
| Input Bias Current (TJ = 25°C) | IIB | - | 3.2 | 6.0 | mA |
| Dropout Voltage (TJ = 25°C) | VI−VO | - | 2.0 | - | Vdc |
| Short Circuit Current Limit (TJ = 25°C, VI = 35 V) | IOS | - | 350 | - | mA |
| Peak Output Current (TJ = 25°C) | IO | - | 700 | - | mA |
Key Features
- No external components required for operation.
- Internal thermal overload protection and short circuit current limiting.
- Output transistor safe-area compensation.
- High accuracy (±2%) available for MC78M00A series.
- ESD protection exceeding Human Body Model 2000 V per MIL-STD-883, Method 3015, and Machine Model 200 V.
Applications
- Local, on-card voltage regulation in various electronic systems.
- Automotive and industrial applications requiring robust voltage regulation.
- General-purpose power supplies where a stable and regulated output voltage is necessary.
- Embedded systems and IoT devices needing reliable voltage regulation.
Q & A
- What is the maximum output current of the MC78M12ABDTRKG?
The maximum output current is 500 mA with adequate heatsinking.
- What are the key features of the MC78M12ABDTRKG?
Key features include internal thermal overload protection, short circuit current limiting, output transistor safe-area compensation, and no requirement for external components.
- What is the output voltage of the MC78M12ABDTRKG?
The output voltage is 12V.
- What is the dropout voltage of the MC78M12ABDTRKG?
The dropout voltage is 2.0 Vdc at TJ = 25°C.
- Does the MC78M12ABDTRKG have ESD protection?
Yes, it exceeds the Human Body Model 2000 V per MIL-STD-883, Method 3015, and Machine Model 200 V.
- What is the peak output current of the MC78M12ABDTRKG?
The peak output current is 700 mA at TJ = 25°C.
- What are the typical operating temperature ranges for the MC78M12ABDTRKG?
The operating temperature ranges are from -40°C to +125°C.
- What package type is the MC78M12ABDTRKG available in?
The MC78M12ABDTRKG is available in a TO-252 (DPAK) package.
- What are some common applications for the MC78M12ABDTRKG?
Common applications include local, on-card voltage regulation, automotive and industrial systems, general-purpose power supplies, and embedded systems.
- Does the MC78M12ABDTRKG require any external components for operation?
No, the MC78M12ABDTRKG does not require any external components for operation.
