Overview
The MC78L09ABDR2G is a linear voltage regulator from onsemi, part of the MC78L00A Series. These regulators are designed to provide a regulated output voltage of up to 100 mA, making them suitable for various applications requiring stable voltage supplies. They are known for their ease of use, low cost, and robust features such as internal current limiting and thermal shutdown. This regulator is particularly useful where no external components are needed, offering a significant performance improvement over traditional zener diode-resistor combinations by reducing output impedance and quiescent current.
Key Specifications
| Parameter | Value |
|---|---|
| Output Voltage (VO) | 9.0 V |
| Input Voltage Range (VI) | 15 V to 30 V |
| Output Current (IO) | Up to 100 mA |
| Dropout Voltage (VI - VO) | 1.7 V |
| Line Regulation (TJ = +25°C, IO = 40 mA) | 20 - 175 mV |
| Load Regulation (TJ = +25°C, 1.0 mA ≤ IO ≤ 100 mA) | 15 - 90 mV |
| Ripple Rejection (IO = 40 mA, f = 120 Hz) | 37 - 57 dB |
| Input Bias Current (TJ = +25°C) | 3.0 - 6.0 mA |
| Output Noise Voltage (TA = +25°C, 10 Hz ≤ f ≤ 100 kHz) | 60 μV |
| Temperature Range | -40°C to +125°C |
| Package | SOIC-8 (Pb-Free) |
Key Features
- Internal Short Circuit Current Limiting
- Internal Thermal Overload Protection
- No External Components Required in Many Applications
- Low Cost and High Performance
- Pb-Free Packages Available
- Complementary Negative Regulators Offered (MC79L00 Series)
Applications
The MC78L09ABDR2G is versatile and can be used in a variety of applications, including:
- Consumer Electronics: Such as audio equipment, home appliances, and other devices requiring stable voltage supplies.
- Industrial Control Systems: For powering sensors, actuators, and other control elements.
- Automotive Systems: Suitable for automotive applications due to its wide temperature range and robust features.
- Medical Devices: Where stable and regulated voltage is crucial.
- General Purpose Power Supplies: In any system requiring a reliable and low-noise voltage regulator.
Q & A
- What is the output voltage of the MC78L09ABDR2G?
The output voltage of the MC78L09ABDR2G is 9.0 V. - What is the input voltage range for the MC78L09ABDR2G?
The input voltage range is from 15 V to 30 V. - What is the maximum output current of the MC78L09ABDR2G?
The maximum output current is up to 100 mA. - What is the dropout voltage of the MC78L09ABDR2G?
The dropout voltage is 1.7 V. - Does the MC78L09ABDR2G require external components?
No, in many applications, no external components are required. - What is the temperature range of the MC78L09ABDR2G?
The temperature range is from -40°C to +125°C. - What package type is the MC78L09ABDR2G available in?
The MC78L09ABDR2G is available in an SOIC-8 package. - Is the MC78L09ABDR2G Pb-Free?
Yes, the MC78L09ABDR2G is available in Pb-Free packages. - What is the ripple rejection of the MC78L09ABDR2G?
The ripple rejection is 37 - 57 dB at 120 Hz. - What are some common applications of the MC78L09ABDR2G?
Common applications include consumer electronics, industrial control systems, automotive systems, medical devices, and general purpose power supplies.
