Overview
The MC78L12ABDR2G is a part of the MC78L00A Series of linear voltage regulators produced by onsemi. These regulators are designed to be inexpensive and easy to use, making them suitable for a wide range of applications that require a regulated supply of up to 100 mA. They feature internal current limiting and thermal shutdown, enhancing their ruggedness and reliability. Unlike traditional zener diode-resistor combinations, these regulators offer reduced output impedance and quiescent current, providing a substantial performance advantage.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage (TJ = +25°C) | 11.5 - 12.5 | Vdc |
| Input Voltage Range | 14.5 - 27 | Vdc |
| Output Current (Typical) | 100 | mA |
| Line Regulation (TJ = +25°C, IO = 40 mA) | 100 - 250 | mV |
| Load Regulation (TJ = +25°C, 1.0 mA ≤ IO ≤ 100 mA) | 10 - 100 | mV |
| Ripple Rejection (IO = 40 mA, f = 120 Hz, TJ = +25°C) | 37 - 42 | dB |
| Dropout Voltage (TJ = +25°C) | 1.7 | V |
| Temperature Range | -40°C to +125°C | |
| Package Type | SOIC-8 |
Key Features
- Internal Short Circuit Current Limiting
- Internal Thermal Overload Protection
- No External Components Required in Many Applications
- Wide Range of Available, Fixed Output Voltages
- Low Cost
- Pb-Free Packages Available
- Complementary Negative Regulators Offered (MC79L00 Series)
Applications
The MC78L12ABDR2G is suitable for various industrial and commercial applications that require a stable and regulated voltage supply. These include:
- Industrial Control Systems
- Consumer Electronics
- Automotive Systems
- Medical Devices
- Telecommunication Equipment
Q & A
- What is the output voltage of the MC78L12ABDR2G?
The output voltage of the MC78L12ABDR2G is 12 V, with a tolerance of ±4%.
- What is the maximum output current of the MC78L12ABDR2G?
The maximum output current is 100 mA.
- What is the input voltage range for the MC78L12ABDR2G?
The input voltage range is 14.5 V to 27 V.
- Does the MC78L12ABDR2G have internal protection features?
Yes, it features internal current limiting and thermal shutdown.
- What package types are available for the MC78L12ABDR2G?
The MC78L12ABDR2G is available in SOIC-8 packages.
- What is the temperature range for the MC78L12ABDR2G?
The operating temperature range is -40°C to +125°C.
- Is the MC78L12ABDR2G Pb-free?
Yes, Pb-free packages are available.
- What is the ripple rejection of the MC78L12ABDR2G?
The ripple rejection is 37 dB to 42 dB at 120 Hz.
- What is the dropout voltage of the MC78L12ABDR2G?
The dropout voltage is 1.7 V.
- Are there complementary negative regulators available?
Yes, complementary negative regulators are offered in the MC79L00 Series.
