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LM2576HVT-12
+Lista de MateriaisIC REG BUCK 12V 3A TO220-5
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FabricanteTexas Instruments
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Peça do Fabricante #LM2576HVT-12
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Ficha Técnica LM2576HVT-12 DataSheet
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Especificações
| Atributo | Valor |
| PartStatus | Obsolete |
| BaseProductNumber | LM2576 |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Fixed |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 4V |
| Voltage-Input(Max) | 60V |
| Voltage-Output(Min/Fixed) | 12V |
| Current-Output | 3A |
| Frequency-Switching | 52kHz |
| SynchronousRectifier | No |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Through Hole |
| Package | TO-220-5 |
| SupplierDevicePackage | TO-220-5 |
| Packaging | Tube |
Visão Geral
Description
The LM2576HVT-12 is a high-efficiency, step-down (buck) voltage regulator designed to provide a fixed 12V output from a higher voltage input, up to 60V. This regulator is part of the LM2576 series, known for its simplicity and reliability in power supply design. It features an output current capability of up to 3A, making it suitable for a wide range of applications, including industrial, automotive, and consumer electronics.
Key features include an internal frequency compensation, a fixed frequency oscillator (52 kHz), and an on-chip power switch, which reduce the need for external components. The device is protected against overcurrent and overheating, ensuring stable operation under varying conditions. Its high efficiency reduces heat generation and improves system performance, minimizing the need for extensive thermal management.
The LM2576HVT-12 is favored for its ease of use, requiring minimal additional components, such as an inductor, capacitors, and a diode, to build a complete power supply solution. It complies with industry standards, ensuring reliability and performance across applications.
Key features include an internal frequency compensation, a fixed frequency oscillator (52 kHz), and an on-chip power switch, which reduce the need for external components. The device is protected against overcurrent and overheating, ensuring stable operation under varying conditions. Its high efficiency reduces heat generation and improves system performance, minimizing the need for extensive thermal management.
The LM2576HVT-12 is favored for its ease of use, requiring minimal additional components, such as an inductor, capacitors, and a diode, to build a complete power supply solution. It complies with industry standards, ensuring reliability and performance across applications.
Equivalent
The LM2576HVT-12 is a step-down voltage regulator. Equivalent products include the LM2596HV-12, which offers similar voltage and current ratings, and the MC34063A, which can be configured for similar applications, though with lower current capacity. Other alternatives are the L4970A and the L78S12CV for fixed 12V outputs. Ensure to verify the specific electrical and thermal requirements of your application when selecting an equivalent.
Features
The LM2576HVT-12 is a step-down voltage regulator with several key features:
1. Output Voltage: Fixed output of 12V.
2. Input Voltage Range: Can handle a wide range of input voltages up to 60V.
3. Output Current: Capable of delivering up to 3A of continuous load current.
4. Efficiency: High efficiency, typically around 77% to 90%, depending on the input voltage and load conditions.
5. Switching Frequency: Fixed frequency of 52 kHz for minimal external components.
6. Thermal Shutdown: Includes thermal protection to prevent damage from overheating.
7. Current Limiting: Built-in current limiting to protect against overcurrent conditions.
8. Simple Design: Requires minimal external components, making it easy to design with.
9. Versatility: Suitable for a wide range of applications, including industrial and automotive.
10. Reliability: Designed for high reliability and performance with a robust construction.
These features make the LM2576HVT-12 ideal for applications requiring efficient voltage regulation in a compact form factor.
1. Output Voltage: Fixed output of 12V.
2. Input Voltage Range: Can handle a wide range of input voltages up to 60V.
3. Output Current: Capable of delivering up to 3A of continuous load current.
4. Efficiency: High efficiency, typically around 77% to 90%, depending on the input voltage and load conditions.
5. Switching Frequency: Fixed frequency of 52 kHz for minimal external components.
6. Thermal Shutdown: Includes thermal protection to prevent damage from overheating.
7. Current Limiting: Built-in current limiting to protect against overcurrent conditions.
8. Simple Design: Requires minimal external components, making it easy to design with.
9. Versatility: Suitable for a wide range of applications, including industrial and automotive.
10. Reliability: Designed for high reliability and performance with a robust construction.
These features make the LM2576HVT-12 ideal for applications requiring efficient voltage regulation in a compact form factor.
Pinout
The LM2576HVT-12 is a step-down voltage regulator with a fixed output voltage of 12V. It typically comes in a TO-220 package with 5 pins.
Here are the pin functions:
1. Vin: This is the input voltage pin where the supply voltage to the regulator is connected.
2. Output: This pin provides the regulated output voltage, which is 12V in this fixed version of the LM2576.
3. Ground (GND): This pin is connected to the ground of the circuit.
4. Feedback (FB): This pin is used for adjustable versions to set the output voltage, but in fixed versions like the LM2576HVT-12, it is internally set and typically tied to the output.
5. ON/OFF: This pin is used to enable or disable the regulator. If left open, the regulator is enabled.
The LM2576HVT-12 is designed for efficiency, reducing heat and power loss in power supply applications.
Here are the pin functions:
1. Vin: This is the input voltage pin where the supply voltage to the regulator is connected.
2. Output: This pin provides the regulated output voltage, which is 12V in this fixed version of the LM2576.
3. Ground (GND): This pin is connected to the ground of the circuit.
4. Feedback (FB): This pin is used for adjustable versions to set the output voltage, but in fixed versions like the LM2576HVT-12, it is internally set and typically tied to the output.
5. ON/OFF: This pin is used to enable or disable the regulator. If left open, the regulator is enabled.
The LM2576HVT-12 is designed for efficiency, reducing heat and power loss in power supply applications.
Manufacturer
The LM2576HVT-12 is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company headquartered in Dallas, Texas. TI is known for designing and manufacturing analog and embedded processing chips, which are essential components in electronic devices across various industries. These industries include automotive, industrial, personal electronics, communications equipment, and enterprise systems. The company focuses on innovation and technology advancement to create efficient and reliable products. TI is one of the largest semiconductor companies in the world and has a long history of engineering excellence.
Application
The LM2576HVT-12 is a high-voltage version of the LM2576 series of monolithic integrated circuits designed for step-down (buck) voltage regulation. Its main application areas include:
1. DC-DC Converters: Used in power supply systems to efficiently convert higher voltage to a stable 12V output.
2. Battery-Powered Devices: Provides regulated power supply, enhancing battery life and efficiency.
3. Industrial Equipment: Supplies stable voltage for industrial electronic applications.
4. Automotive Electronics: Employed in car infotainment systems and other automotive electronics requiring stable voltage.
5. Embedded Systems: Supports microcontrollers and other components by providing a consistent power supply.
These applications benefit from the LM2576HVT-12's efficiency, simplicity, and reliability in voltage regulation.
1. DC-DC Converters: Used in power supply systems to efficiently convert higher voltage to a stable 12V output.
2. Battery-Powered Devices: Provides regulated power supply, enhancing battery life and efficiency.
3. Industrial Equipment: Supplies stable voltage for industrial electronic applications.
4. Automotive Electronics: Employed in car infotainment systems and other automotive electronics requiring stable voltage.
5. Embedded Systems: Supports microcontrollers and other components by providing a consistent power supply.
These applications benefit from the LM2576HVT-12's efficiency, simplicity, and reliability in voltage regulation.
Package
The LM2576HVT-12 is a high-voltage version of the LM2576 series, which is a step-down voltage regulator. It is commonly available in a TO-220 package, featuring 5 leads. This package type is designed for easy mounting and efficient heat dissipation.
