Overview
The MC78M15BDTRK 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 popular MC7800 Series but with half the output current. They are known for their ruggedness under various operating conditions, thanks to internal current limiting, thermal shutdown circuitry, and safe-area compensation for the internal pass transistor.
Key Specifications
| Characteristics | Symbol | Min | Max | Unit | |
|---|---|---|---|---|---|
| Output Voltage (TJ = 25°C) | VO | 14.4 | 15 | 15.6 | Vdc |
| Output Voltage Variation (17.5 Vdc ≤ VI ≤ 30 Vdc, 5.0 mA ≤ IO ≤ 350 mA) | VO | 14.25 | - | 15.75 | Vdc |
| Line Regulation (TJ = 25°C, 17.5 Vdc ≤ VI ≤ 30 Vdc, IO = 200 mA) | Regline | - | 10 | 50 | mV |
| Load Regulation (TJ = 25°C, 5.0 mA ≤ IO ≤ 500 mA) | Regload | - | - | 30 | mV |
| Dropout Voltage (TJ = 25°C) | VI−VO | - | 2.0 | - | Vdc |
| Short Circuit Current Limit (TJ = 25°C, VI = 35 V) | IOS | - | 50 | - | mA |
| Average Temperature Coefficient of Output Voltage (IO = 5.0 mA) | ΔVO/ΔT | - | ±0.3 | - | mV/°C |
| Peak Output Current (TJ = 25°C) | IO | - | 700 | - | mA |
| Minimum Operating Temperature | - | -40 | - | - | °C |
| Maximum Operating Temperature | - | - | 125 | - | °C |
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)
- AEC-Q100 Qualified and PPAP Capable for Automotive and Other Applications
Applications
The MC78M15BDTRK is suitable for various applications requiring stable and regulated voltage, including:
- Local, on-card voltage regulation in electronic devices
- Automotive systems requiring AEC-Q100 qualified components
- Industrial control systems
- Consumer electronics
- Medical devices
Q & A
- What is the maximum output current of the MC78M15BDTRK?
The maximum output current is 500 mA with adequate heatsinking.
- What is the output voltage range for the MC78M15BDTRK?
The output voltage range is 14.4 V to 15.6 V.
- What is the dropout voltage for this regulator?
The dropout voltage is 2.0 V.
- Does the MC78M15BDTRK have internal thermal protection?
- Is the MC78M15BDTRK AEC-Q100 qualified?
- What is the minimum operating temperature for this regulator?
The minimum operating temperature is -40°C.
- What is the maximum operating temperature for this regulator?
The maximum operating temperature is 125°C.
- Does the MC78M15BDTRK require external components for operation?
No, it does not require external components for operation.
- What is the average temperature coefficient of output voltage?
The average temperature coefficient of output voltage is ±0.3 mV/°C.
- What is the peak output current at 25°C?
The peak output current at 25°C is 700 mA.
