Overview
The MC78M05CTG is a 500 mA positive linear voltage regulator from onsemi, part of the MC78M00/MC78M00A series. This regulator is similar to the MC7800 series but is specified for 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 robust under various operating conditions. The maximum output current, with adequate heatsinking, is 500 mA.
Key Specifications
| Parameter | Min | Typ | 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 |
| Average Temperature Coefficient of Output Voltage (IO = 5.0 mA) | - | ±0.2 | - | mV/°C |
| Peak Output Current (TJ = 25°C) | - | 700 | - | mA |
| Temperature Range | -40°C | - | 125°C | °C |
| Package | - | - | DPAK-3, TO-220 | - |
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 Method 200 V
Applications
The MC78M05CTG is suitable for various applications requiring stable and regulated voltage, including:
- Local, on-card voltage regulation
- Industrial control systems
- Automotive systems (NCV prefix versions)
- Consumer electronics
- Medical devices
Q & A
- What is the maximum output current of the MC78M05CTG?
The maximum output current, with adequate heatsinking, is 500 mA.
- What are the available output voltages for the MC78M00 series?
The MC78M00 series is available for output voltages of 5.0 V, 8.0 V, 12 V, and 15 V.
- Does the MC78M05CTG require external components for operation?
No, the MC78M05CTG does not require external components for operation.
- What is the temperature range for the MC78M05CTG?
The temperature range for the MC78M05CTG is -40°C to +125°C.
- What kind of protection does the MC78M05CTG have?
The MC78M05CTG has internal thermal overload protection and internal short circuit current limiting.
- Is the MC78M05CTG ESD protected?
- What are the available packages for the MC78M05CTG?
The MC78M05CTG is available in DPAK-3 and TO-220 packages.
- What is the dropout voltage for the MC78M05CTG?
The dropout voltage for the MC78M05CTG is 2.0 Vdc.
- What is the short circuit current limit for the MC78M05CTG?
The short circuit current limit for the MC78M05CTG is 350 mA.
- What is the average temperature coefficient of output voltage for the MC78M05CTG?
The average temperature coefficient of output voltage for the MC78M05CTG is ±0.2 mV/°C.
