Overview
The MC78M05BDTT5G is a 500 mA positive linear voltage regulator from onsemi, part of the MC78M00/MC78M00A series. This regulator is similar to the popular MC7800 Series devices 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 MC78M05BDTT5G is available in several voltage options, but specifically, the '05' variant is set for a 5V output. It requires no external components and is available in Pb-free packages.
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 | - | - | TO-220AB, DPAK-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 variants
- 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 MC78M05BDTT5G is suitable for various applications requiring stable and regulated 5V output voltage. These include:
- Local, on-card voltage regulation in electronic devices
- Industrial control systems
- Automotive systems (with NCV prefix variants)
- Consumer electronics
- Medical devices requiring stable voltage supply
Q & A
- What is the maximum output current of the MC78M05BDTT5G?
The maximum output current, with adequate heatsinking, is 500 mA.
- What are the key features of the MC78M05BDTT5G?
Key features include no external components required, internal thermal overload protection, internal short circuit current limiting, and output transistor safe-area compensation.
- What is the output voltage tolerance for the MC78M05BDTT5G?
The output voltage tolerance is ±2% for the MC78M00A variants and ±4% for the standard variants.
- What are the available package types for the MC78M05BDTT5G?
The regulator is available in TO-220AB and DPAK-3 packages.
- Does the MC78M05BDTT5G 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 temperature range for the MC78M05BDTT5G?
The temperature range is -40°C to +125°C.
- What is the dropout voltage for the MC78M05BDTT5G?
The dropout voltage is 2.0 Vdc at TJ = 25°C.
- Is the MC78M05BDTT5G Pb-free?
Yes, Pb-free packages are available.
- What are some common applications for the MC78M05BDTT5G?
Common applications include local, on-card voltage regulation, industrial control systems, automotive systems, consumer electronics, and medical devices.
- What is the average temperature coefficient of output voltage for the MC78M05BDTT5G?
The average temperature coefficient of output voltage is ±0.2 mV/°C at IO = 5.0 mA.
