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L7912CV-DG
+NomenclatureIC REG LINEAR -12V 1.5A TO220
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FabricantSemi - conducteurs optiques
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Pièce fabricant #L7912CV-DG
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Package TO220-3
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En stock3784
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Spécifications
| Attribut | Valeur |
| Package | Tube |
| ProductStatus | Active |
| OutputConfiguration | Negative |
| OutputType | Fixed |
| NumberofRegulators | 1 |
| Voltage-Input(Max) | -35V |
| Voltage-Output(Min/Fixed) | -12V |
| VoltageDropout(Max) | 1.1V @ 1A (Typ) |
| Current-Output | 1.5A |
| Current-Quiescent(Iq) | 3 mA |
| PSRR | 60dB (120Hz) |
| ProtectionFeatures | Over Temperature, Short Circuit |
| OperatingTemperature | 0°C ~ 125°C |
| MountingType | Through Hole |
| Package/Case | TO-220-3 |
Présentation
Description
The L7912CV-DG is a voltage regulator integrated circuit (IC) designed to provide a stable and reliable negative voltage output of -12V. It is part of the 79xx series of voltage regulators, which are typically used in electronic circuits to maintain a constant output voltage level despite variations in input voltage or load conditions. The "L" denotes it is a linear regulator, and the "CV" specifies its packaging and series.
This IC can deliver up to 1.5A of output current with built-in protection features such as thermal shutdown, current limiting, and safe area compensation. These features ensure the device operates safely under a range of conditions, preventing damage due to overheating or excessive current. The L7912CV-DG is commonly used in power supply designs where a stable -12V is required, such as in dual-voltage applications, operational amplifiers, and analog circuitry. It typically comes in a TO-220 package, which aids in heat dissipation. Its ease of use and reliability make it a popular choice for both hobbyists and professional engineers.
This IC can deliver up to 1.5A of output current with built-in protection features such as thermal shutdown, current limiting, and safe area compensation. These features ensure the device operates safely under a range of conditions, preventing damage due to overheating or excessive current. The L7912CV-DG is commonly used in power supply designs where a stable -12V is required, such as in dual-voltage applications, operational amplifiers, and analog circuitry. It typically comes in a TO-220 package, which aids in heat dissipation. Its ease of use and reliability make it a popular choice for both hobbyists and professional engineers.
Equivalent
The L7912CV-DG is a negative voltage regulator that provides a fixed output of -12V. Equivalent products include:
1. LM7912 by Texas Instruments
2. MC7912 by ON Semiconductor
3. KA7912 by Fairchild Semiconductor
4. UA7912 by Texas Instruments
5. L7912 by STMicroelectronics
These equivalents offer similar voltage regulation capabilities and pin configurations, making them suitable replacements in circuits requiring a -12V output. Always check the datasheet for specific electrical and thermal characteristics.
1. LM7912 by Texas Instruments
2. MC7912 by ON Semiconductor
3. KA7912 by Fairchild Semiconductor
4. UA7912 by Texas Instruments
5. L7912 by STMicroelectronics
These equivalents offer similar voltage regulation capabilities and pin configurations, making them suitable replacements in circuits requiring a -12V output. Always check the datasheet for specific electrical and thermal characteristics.
Features
The L7912CV-DG is a voltage regulator designed to provide a fixed output voltage of -12V. It is part of the 79XX series of negative voltage regulators. Key features include:
1. Output Voltage: -12V with a typical output current capability of up to 1.5A.
2. Thermal Protection: Built-in thermal overload protection ensures the device is safeguarded against overheating.
3. Short-Circuit Protection: Current limiting is included to prevent damage during short-circuit conditions.
4. Safe Operating Area Protection: Ensures the device operates reliably within its specified range.
5. Minimum External Components: Requires few external components, simplifying design and reducing board space.
6. Package: Typically available in a TO-220 package, facilitating easy mounting and heat dissipation.
These features make the L7912CV-DG suitable for various applications requiring a stable negative voltage, such as in power supply circuits for analog and digital systems.
1. Output Voltage: -12V with a typical output current capability of up to 1.5A.
2. Thermal Protection: Built-in thermal overload protection ensures the device is safeguarded against overheating.
3. Short-Circuit Protection: Current limiting is included to prevent damage during short-circuit conditions.
4. Safe Operating Area Protection: Ensures the device operates reliably within its specified range.
5. Minimum External Components: Requires few external components, simplifying design and reducing board space.
6. Package: Typically available in a TO-220 package, facilitating easy mounting and heat dissipation.
These features make the L7912CV-DG suitable for various applications requiring a stable negative voltage, such as in power supply circuits for analog and digital systems.
Pinout
The L7912CV-DG is a voltage regulator integrated circuit (IC) used to provide a stable negative output voltage of -12V. It typically comes in a TO-220 package and has three pins. Here are the pin functions:
1. Input (Pin 1): This pin receives the unregulated input voltage, which should be more negative than -14.5V for proper regulation.
2. Ground/Common (Pin 2): This pin is connected to the ground of the circuit. It serves as the reference point for the input and output voltages.
3. Output (Pin 3): This pin provides the regulated -12V output voltage.
The L7912CV-DG ensures a stable output voltage with good line and load regulation, making it suitable for various applications requiring a reliable negative voltage supply.
1. Input (Pin 1): This pin receives the unregulated input voltage, which should be more negative than -14.5V for proper regulation.
2. Ground/Common (Pin 2): This pin is connected to the ground of the circuit. It serves as the reference point for the input and output voltages.
3. Output (Pin 3): This pin provides the regulated -12V output voltage.
The L7912CV-DG ensures a stable output voltage with good line and load regulation, making it suitable for various applications requiring a reliable negative voltage supply.
Manufacturer
The L7912CV-DG is manufactured by STMicroelectronics. STMicroelectronics is a global semiconductor company that designs, develops, manufactures, and markets a broad range of semiconductor products used in various microelectronic applications, including automotive, industrial, personal electronics, communications equipment, and computers. Founded in 1987 through the merger of SGS Microelettronica of Italy and Thomson Semiconducteurs of France, STMicroelectronics is a leading supplier in the semiconductor industry, with a focus on innovation and sustainability. The company operates globally, with a strong presence in Europe, Asia, and the Americas, and it is known for its expertise in semiconductor solutions that contribute to advancements in electronics and technology.
Application
The L7912CV-DG is a linear voltage regulator that provides a stable -12V output from a higher voltage input. Its primary application areas include:
1. Power Supply Design: Used in circuits requiring a -12V power supply, such as in audio equipment, lab instruments, and communication devices.
2. Op-Amp Circuits: Provides the negative voltage rail necessary for dual-supply op-amp configurations.
3. Microcontroller Systems: Ensures stable negative voltage for components needing dual-polarity power supplies.
4. Analog and Digital Circuits: Offers regulated power for mixed-signal processing in both analog and digital circuits.
5. Embedded Systems: Suitable for applications requiring reliable negative voltage regulation for embedded system components.
1. Power Supply Design: Used in circuits requiring a -12V power supply, such as in audio equipment, lab instruments, and communication devices.
2. Op-Amp Circuits: Provides the negative voltage rail necessary for dual-supply op-amp configurations.
3. Microcontroller Systems: Ensures stable negative voltage for components needing dual-polarity power supplies.
4. Analog and Digital Circuits: Offers regulated power for mixed-signal processing in both analog and digital circuits.
5. Embedded Systems: Suitable for applications requiring reliable negative voltage regulation for embedded system components.
Package
The L7912CV-DG is a linear voltage regulator with a TO-220 package type. The TO-220 package is commonly used for power semiconductors and offers a balance of compact size with heat dissipation capability, featuring a metal tab for mounting and improved thermal performance.
