Overview
The MC78M05CDT is a 500 mA positive voltage regulator produced by onsemi. It is part of the MC78M00/MC78M00A series, which are identical to the popular MC7800 series but specified for half the output current. These three-terminal regulators are designed for local, on-card voltage regulation and are known for their ruggedness under most operating conditions.
The MC78M05CDT is specifically designed to provide a fixed output voltage of 5.0 V and features internal current limiting, thermal shutdown circuitry, and safe-area compensation for the internal pass transistor. This regulator is suitable for various applications requiring stable voltage regulation.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| Output Voltage (TJ = 25°C) | 4.8 | 5.0 | 5.2 | Vdc |
| Maximum Output Current | 0.5 | A | ||
| Input Voltage Range | 7.0 | 20 | Vdc | |
| Line Regulation (TJ = 25°C, 8.0 Vdc ≤ VI ≤ 25 Vdc, IO = 200 mA) | 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 | ||
| Operating Temperature Range | 0 | 125 | °C | |
| Package Type | DPAK |
Key Features
- No external components required for operation.
- Internal thermal overload protection.
- Internal short-circuit current limiting.
- Output transistor safe-area compensation.
- High accuracy (±2%) for MC78M05A versions.
- ESD protection exceeding Human Body Model 2000 V per MIL-STD-883, Method 3015, and Machine Model 200 V.
Applications
The MC78M05CDT is suitable for a variety of applications that require stable and regulated 5.0 V output voltage. These include:
- Local, on-card voltage regulation in electronic devices.
- Automotive and industrial control systems.
- Consumer electronics requiring reliable voltage regulation.
- Embedded systems and IoT devices.
Q & A
- What is the maximum output current of the MC78M05CDT?
The maximum output current is 500 mA.
- What is the output voltage of the MC78M05CDT?
The output voltage is 5.0 V, with a range of 4.8 V to 5.2 V.
- What type of package does the MC78M05CDT come in?
The MC78M05CDT comes in a DPAK package.
- Does the MC78M05CDT have internal thermal protection?
Yes, it has internal thermal overload protection.
- What is the input voltage range for the MC78M05CDT?
The input voltage range is from 7.0 V to 20 V.
- Is the MC78M05CDT ESD protected?
Yes, it exceeds the Human Body Model 2000 V per MIL-STD-883, Method 3015, and Machine Model 200 V.
- What is the operating temperature range of the MC78M05CDT?
The operating temperature range is from 0°C to 125°C.
- Does the MC78M05CDT require external components for operation?
No, it does not require external components for operation.
- What is the dropout voltage of the MC78M05CDT?
The dropout voltage is 2.0 V.
- What is the short-circuit current limit of the MC78M05CDT?
The short-circuit current limit is 350 mA.
