79M12 is a voltage regulator integrated circuit. It is a member of 79xx series of fixed linear voltage regulator ICs. The voltage source in a circuit may have fluctuations and would not give the fixed voltage output. The voltage regulator IC maintains the output voltage at a constant value. The xx in 78xx indicates the fixed output voltage it is designed to provide. 7912 provides a regulated supply of -12 V and 1A current. Its additional features include internal thermal overload protection, short circuit protection and output transistor safe operating area compensation. RoboticsBD
The MC79MXX series of fixed output negative voltage regulators are intended as complements to the popular MC78M00 series devices. Available in fixed output voltage options of −5.0 V, −8.0 V, −09 V and −15 V, these regulators employ current limiting, thermal shutdown, and safe−area compensation, making them remarkably rugged under most operating conditions. With adequate heatsinking, they can deliver output currents in excess of 0.5 A. Featured By RoboticsBD.
Product Images are shown for illustrative purposes only and may differ from the actual product.
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Note: Image may vary from actual product in terms of Manufacturer/Brand name according to the availability. RoboticsBD
Where to use LM7912:
LM7912 belongs to the family of Voltage regulators. The name “79” indicates negative and the term “12” indicates the voltage. So “7912” means that this IC will regulate a negative 12V for your projects. You can also check on 78 series for positive voltage regulators.
When you are designing an analog circuit, the circuit might need negative voltage either as a power source or as a reference voltage. In both cases, 7912 will be an ideal choice when you need a negative 12V. The output current of this IC is up to 1A, however, with an appropriate heat sink, the datasheet says that a peak current of 2.2A can be achieved through this IC. RoboticsBD
Features:
- No External Components Required
- Internal Thermal Overload Protection
- Internal Short Circuit Current Limiting
- Output Transistor Safe−Area Compensation
- 12V Negative Voltage Regulator
- Minimum Input Voltage is -14.5V
- Maximum Input Voltage is -27V
- Peak Output Current is 2.2A
- Average Output Current is up to 1A
- Internal Thermal Overload and Short circuit current limiting protection is available.
- Available in TO-220 package only.
Applications:
- Constant -12V output regulator to use as power or reference voltage for analog and digital circuits.
- Current Limiter for certain applications
- Regulated Dual Supply
- Output Polarity-Reversal-Protection Circuit
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| General Specification |
| Output Voltage |
-12 V |
| Maximum Output Current |
1.5A |
| Package Type |
TO-220 |
| Output Type |
Fixed |
| Mounting Type |
Through Hole |
| Maximum Input Voltage |
-35 V |
| Pin Count |
3 |
| Minimum Operating Temperature |
0 °C |
| Maximum Operating Temperature |
#ERROR! |
| Number of Outputs |
1 |
| Polarity |
Negative |
| Length |
10.4mm |
| Line Regulation |
240 mV |
| Typical Dropout Voltage @ Current |
1.1 V @ 1 A |
| Series |
L79xx |
| Height |
9.15mm |
| Load Regulation |
240 mV |
| Quiescent Current |
3mA |
| Width |
4.6mm |
| Dimensions |
10.4 x 4.6 x 9.15mm |
| Shipment Weight |
0.005 kg |
| Shipment Dimensions |
3 × 3 × 3 cm |
Please allow 5% measuring deviation due to manual measurement.
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Package Includes:
1 x L7912CV Negative Voltage Regulator.
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