Overview
The MC78L05ACHX is a 3-terminal, 0.1 A positive voltage regulator manufactured by ON Semiconductor. This linear voltage regulator is part of the MC78LXXA series and is designed to provide a stable output voltage of 5 V. It is suitable for applications requiring a supply current up to 100 mA. The device is available in the SOT-89 package and operates over a temperature range of -40°C to +125°C, making it versatile for various electronic systems.
Key Specifications
| Parameter | Conditions | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|
| Output Voltage (VO) | TJ = 25°C | 4.8 | 5.0 | 5.2 | V |
| Line Regulation (ΔVO) | 7 V ≤ VI ≤ 20 V | 8 | 150 | mV | |
| Load Regulation (ΔVO) | 1 mA ≤ IO ≤ 100 mA | 11 | 60 | mV | |
| Quiescent Current (IQ) | TJ = 25°C | 2.0 | 5.5 | mA | |
| Output Noise Voltage (VN) | TA = 25°C, 10 Hz ≤ f ≤ 100 kHz | 40 | μV/Vo | ||
| Ripple Rejection (RR) | f = 120 Hz, 8 V ≤ VI ≤ 18 V, TJ = 25°C | 41 | 80 | dB | |
| Dropout Voltage (VD) | TJ = 25°C | 1.7 | V | ||
| Input Voltage (VI) | 7-20 | V | |||
| Maximum Junction Temperature (TJ(MAX)) | 150 | °C | |||
| Thermal Resistance, Junction-Air (RθJA) | SOT-89 | 225 | °C/W |
Key Features
- Maximum Output Current: Up to 100 mA.
- Output Voltage: Fixed at 5 V with ±5% tolerance.
- Thermal Overload Protection: Prevents device damage due to overheating.
- Short-Circuit Current Limiting: Protects against short-circuit conditions.
- Low Dropout Voltage: 1.7 V at TJ = 25°C.
- High Ripple Rejection: Up to 80 dB at 120 Hz.
- Compact Package: Available in SOT-89 package.
- Wide Operating Temperature Range: -40°C to +125°C.
Applications
The MC78L05ACHX is suitable for a variety of applications that require a stable 5V voltage supply, including:
- Embedded Systems: For powering microcontrollers, sensors, and other components.
- Industrial Control Systems: For providing a stable voltage in industrial automation and control systems.
- Consumer Electronics: For use in audio equipment, home appliances, and other consumer devices.
- Automotive Systems: For applications requiring a reliable and stable voltage supply in automotive electronics.
Q & A
- What is the output voltage of the MC78L05ACHX?
The output voltage is fixed at 5 V with a ±5% tolerance. - What is the maximum output current of the MC78L05ACHX?
The maximum output current is up to 100 mA. - What type of protection does the MC78L05ACHX have?
The device features thermal overload protection and short-circuit current limiting. - What is the operating temperature range of the MC78L05ACHX?
The operating temperature range is -40°C to +125°C. - What is the dropout voltage of the MC78L05ACHX?
The dropout voltage is 1.7 V at TJ = 25°C. - What is the ripple rejection of the MC78L05ACHX?
The ripple rejection is up to 80 dB at 120 Hz. - In what package is the MC78L05ACHX available?
The device is available in the SOT-89 package. - What is the input voltage range for the MC78L05ACHX?
The input voltage range is 7 V to 20 V. - Is the MC78L05ACHX suitable for high-temperature applications?
Yes, it has a high maximum junction temperature of 150°C and operates over a wide temperature range. - What are some common applications of the MC78L05ACHX?
Common applications include embedded systems, industrial control systems, consumer electronics, and automotive systems.
