Overview
The MC78M05ACTG is a 500 mA positive linear voltage regulator from onsemi, part of the MC78M00/MC78M00A series. This regulator is identical to the popular MC7800 Series devices but is specified for only half the output current. It is designed for local, on-card voltage regulation and features internal current limiting, thermal shutdown circuitry, and safe-area compensation for the internal pass transistor, making it remarkably rugged under most operating conditions.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| Output Voltage (TJ = 25°C) | 4.8 | 5.0 | 5.2 | Vdc |
| Output Voltage Variation (7.0 Vdc ≤ VI ≤ 20 Vdc, 5.0 mA ≤ IO ≤ 350 mA) | 4.9 | - | 5.1 | Vdc |
| Line Regulation (TJ = 25°C, 8.0 Vdc ≤ VI ≤ 25 Vdc, IO = 200 mA) | - | 5.0 | 50 | mV |
| Load Regulation (TJ = 25°C, 5.0 mA ≤ IO ≤ 500 mA) | - | - | 20 | mV |
| Dropout Voltage (TJ = 25°C) | - | 2.0 | - | Vdc |
| Short Circuit Current Limit (TJ = 25°C, VI = 35 V) | - | 350 | - | mA |
| Peak Output Current (TJ = 25°C) | - | 700 | - | mA |
| Temperature Range | 0°C | - | 125°C | °C |
| Package | - | - | TO-220-3 | - |
Key Features
- No External Components Required
- Internal Thermal Overload Protection
- Internal Short Circuit Current Limiting
- Output Transistor Safe-Area Compensation
- High Accuracy (±2%) for MC78M00A versions
- Pb-Free Packages Available
- ESD Protection: Exceeds Human Body Model 2000 V per MIL-STD-883, Method 3015 and Machine Model 200 V
Applications
The MC78M05ACTG is suitable for various applications requiring stable and regulated voltage, including:
- Local, on-card voltage regulation
- Industrial control systems
- Consumer electronics
- Automotive systems (NCV prefix versions)
- General-purpose power supplies
Q & A
- What is the maximum output current of the MC78M05ACTG?
The maximum output current is 500 mA with adequate heatsinking.
- What are the key protection features of the MC78M05ACTG?
The device features internal thermal overload protection, internal short circuit current limiting, and output transistor safe-area compensation.
- What is the output voltage tolerance for the MC78M05ACTG?
The output voltage tolerance is ±2% for the MC78M00A versions.
- What is the dropout voltage for the MC78M05ACTG?
The dropout voltage is 2.0 Vdc at TJ = 25°C.
- What is the temperature range for the MC78M05ACTG?
The temperature range is 0°C to 125°C.
- What package types are available for the MC78M05ACTG?
The device is available in the TO-220-3 package.
- Does the MC78M05ACTG require external components?
No, the MC78M05ACTG does not require external components.
- What is the line regulation of the MC78M05ACTG?
The line regulation is 5.0 mV to 50 mV (TJ = 25°C, 8.0 Vdc ≤ VI ≤ 25 Vdc, IO = 200 mA).
- What is the load regulation of the MC78M05ACTG?
The load regulation is 20 mV (TJ = 25°C, 5.0 mA ≤ IO ≤ 500 mA).
- Does the MC78M05ACTG have ESD protection?
Yes, the device exceeds Human Body Model 2000 V per MIL-STD-883, Method 3015 and Machine Model 200 V.
