Overview
The MC78M18CDTG is a fixed-voltage linear voltage regulator produced by onsemi. This regulator is part of the MC78M00 series, which is known for its reliability and performance in various electronic systems. The MC78M18CDTG provides a stable output voltage of 18V, making it suitable for applications requiring a consistent voltage supply.
This device is designed to operate within a wide input voltage range and can handle high current demands, making it versatile for use in different power supply configurations. The regulator also features internal current limiting, thermal shutdown, and safe operating area protection, ensuring robust operation under various conditions.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage | 18 | Vdc |
| Input Voltage Range | 21 - 33 | Vdc |
| Minimum Operating Temperature | 0 | °C |
| Maximum Operating Temperature | 125 | °C |
| Output Voltage Tolerance | ±4% | |
| Peak Output Current | 700 | mA |
| Dropout Voltage | 2.0 | Vdc |
| Short Circuit Current Limit | 350 | mA |
| Thermal Resistance, Junction-to-Air | 70 - 92 | °C/W |
Key Features
- Fixed Output Voltage: Provides a stable output voltage of 18V.
- Wide Input Voltage Range: Operates within an input voltage range of 21V to 33V.
- High Current Capability: Can handle peak output currents up to 700mA.
- Internal Current Limiting and Thermal Shutdown: Ensures safe operation by limiting current and shutting down in case of overheating.
- Low Dropout Voltage: Dropout voltage of 2.0Vdc at 25°C.
- High Ripple Rejection Ratio: Effective in reducing input ripple and noise.
- ESD Protection: Exceeds Human Body Model 2000V and Machine Model 200V tests.
Applications
- Power Supplies: Suitable for use in linear power supplies requiring a stable 18V output.
- Industrial Control Systems: Used in control systems that need reliable voltage regulation.
- Medical Devices: Can be used in medical equipment that requires stable and regulated voltage supplies.
- Aerospace and Defense: Applicable in various aerospace and defense systems due to its robust performance and reliability.
- Consumer Electronics: Used in consumer electronics that require stable voltage regulation, such as audio equipment and other electronic devices.
Q & A
- What is the output voltage of the MC78M18CDTG?
The output voltage of the MC78M18CDTG is 18Vdc.
- What is the input voltage range for the MC78M18CDTG?
The input voltage range is from 21V to 33Vdc.
- What is the maximum operating temperature for the MC78M18CDTG?
The maximum operating temperature is 125°C.
- Does the MC78M18CDTG have internal current limiting and thermal shutdown?
Yes, it has internal current limiting and thermal shutdown features for safe operation.
- What is the dropout voltage of the MC78M18CDTG?
The dropout voltage is 2.0Vdc at 25°C.
- What is the peak output current capability of the MC78M18CDTG?
The peak output current capability is up to 700mA.
- Does the MC78M18CDTG have ESD protection?
Yes, it exceeds Human Body Model 2000V and Machine Model 200V tests.
- What are some common applications for the MC78M18CDTG?
Common applications include power supplies, industrial control systems, medical devices, aerospace and defense systems, and consumer electronics.
- What is the thermal resistance, junction-to-air, for the MC78M18CDTG?
The thermal resistance, junction-to-air, is between 70°C/W and 92°C/W.
- What is the output voltage tolerance of the MC78M18CDTG?
The output voltage tolerance is ±4%.
