Overview
The MC78M08CDTRKG is a 500 mA positive voltage regulator from onsemi, part of the MC78M00 series. This three-terminal regulator is designed for local, on-card voltage regulation and is similar to the MC7800 series but with half the output current. It features internal current limiting, thermal shutdown circuitry, and safe-area compensation for the internal pass transistor, making it robust under various operating conditions.
Key Specifications
| Characteristic | Min | Max | Unit | |
|---|---|---|---|---|
| Output Voltage (TJ = 25°C) | 7.70 | 7.84 | 8.30 | Vdc |
| Output Voltage Variation (10.5 Vdc ≤ VI ≤ 23 Vdc, 5.0 mA ≤ IO ≤ 350 mA) | 7.70 | - | 8.30 | Vdc |
| Line Regulation (TJ = 25°C, 10.5 Vdc ≤ VI ≤ 25 Vdc, IO = 200 mA) | - | 6.0 | 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 |
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 series
- ESD Protection: Human Body Model 2000 V per MIL-STD-883, Method 3015 and Machine Model Method 200 V
Applications
The MC78M08CDTRKG is suitable for various applications requiring stable voltage regulation, including:
- Local, on-card voltage regulation
- Automotive and industrial systems (NCV prefix models)
- Consumer electronics
- Telecommunications equipment
Q & A
- What is the maximum output current of the MC78M08CDTRKG?
The maximum output current with adequate heatsinking is 500 mA.
- What are the output voltage specifications for the MC78M08CDTRKG?
The output voltage ranges from 7.70 V to 8.30 V at TJ = 25°C.
- Does the MC78M08CDTRKG require external components?
No, the MC78M08CDTRKG does not require external components for operation.
- What is the dropout voltage for the MC78M08CDTRKG?
The dropout voltage is 2.0 Vdc at TJ = 25°C.
- What is the short circuit current limit for the MC78M08CDTRKG?
The short circuit current limit is 350 mA at TJ = 25°C and VI = 35 V.
- What is the average temperature coefficient of output voltage?
The average temperature coefficient of output voltage is ±0.2 mV/°C at IO = 5.0 mA.
- What is the peak output current for the MC78M08CDTRKG?
The peak output current is 700 mA at TJ = 25°C.
- Does the MC78M08CDTRKG have ESD protection?
- What are the operating temperature ranges for the MC78M08CDTRKG?
The operating temperature ranges are from -40°C to +125°C for NCV and MC78MxxAB/B models.
- What are some common applications for the MC78M08CDTRKG?
Common applications include local, on-card voltage regulation, automotive and industrial systems, consumer electronics, and telecommunications equipment.
