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LM2576HVS-5.0
IC REG BUCK 5V 3A TO263-5
- 製造商
- 製造商。 部分 #LM2576HVS-5.0
- 包 TO-263 (KTT)-5
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規格
| Package | Tube |
| Series | SIMPLE SWITCHER® |
| ProductStatus | Not For New Designs |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Fixed |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 4V |
| Voltage-Input(Max) | 60V |
| Voltage-Output(Min/Fixed) | 5V |
| Current-Output | 3A |
| Frequency-Switching | 52kHz |
| SynchronousRectifier | No |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | TO-263-6, D²Pak (5 Leads + Tab), TO-263BA |
概述
Description
The LM2576HVS-5.0 is a high-voltage version of the LM2576 series, designed for step-down voltage regulation applications. This switching voltage regulator is capable of delivering an output of 5.0 volts, with an input voltage range of up to 60V, making it suitable for various high-voltage applications. It offers a 3A output current capability and features a fixed output voltage regulation, which simplifies the design and reduces the need for external components.
Key features include a high efficiency of up to 90%, internal frequency compensation, and a fixed switching frequency of 52 kHz, which contributes to smaller component sizes. The LM2576HVS-5.0 also provides built-in protection features like thermal shutdown, current limiting, and input undervoltage lockout to enhance reliability and ensure safe operation. Its simple design procedure and minimal external components make it a popular choice for power supply designs in consumer, industrial, and automotive applications. The device is available in various package options, including TO-220 and TO-263, which facilitate easy mounting and heat dissipation.
Key features include a high efficiency of up to 90%, internal frequency compensation, and a fixed switching frequency of 52 kHz, which contributes to smaller component sizes. The LM2576HVS-5.0 also provides built-in protection features like thermal shutdown, current limiting, and input undervoltage lockout to enhance reliability and ensure safe operation. Its simple design procedure and minimal external components make it a popular choice for power supply designs in consumer, industrial, and automotive applications. The device is available in various package options, including TO-220 and TO-263, which facilitate easy mounting and heat dissipation.
Features
The LM2576HVS-5.0 is a step-down voltage regulator designed for high-efficiency power conversion. Key features include:
1. Output Voltage: Fixed 5.0V output.
2. Input Voltage Range: Operates at an input voltage of up to 60V, suitable for high-voltage applications.
3. Output Current: Capable of delivering up to 3A of output current.
4. Efficiency: Designed for high efficiency, reducing power loss and heat generation.
5. Switching Frequency: Fixed frequency operation (52 kHz), simplifying filter design and minimizing components.
6. Protection Features: Includes thermal shutdown, current limiting, and overvoltage protection to enhance reliability and safety.
7. Ease of Use: Minimal external components required, simplifying circuit design and reducing overall cost.
8. Package Options: Available in TO-220 and TO-263 packages, offering flexibility in thermal management and layout.
9. Wide Range of Applications: Suitable for use in industrial, automotive, and consumer electronics where efficient regulation from higher voltages is required.
These features make it suitable for reliable and efficient power supply designs in various applications.
1. Output Voltage: Fixed 5.0V output.
2. Input Voltage Range: Operates at an input voltage of up to 60V, suitable for high-voltage applications.
3. Output Current: Capable of delivering up to 3A of output current.
4. Efficiency: Designed for high efficiency, reducing power loss and heat generation.
5. Switching Frequency: Fixed frequency operation (52 kHz), simplifying filter design and minimizing components.
6. Protection Features: Includes thermal shutdown, current limiting, and overvoltage protection to enhance reliability and safety.
7. Ease of Use: Minimal external components required, simplifying circuit design and reducing overall cost.
8. Package Options: Available in TO-220 and TO-263 packages, offering flexibility in thermal management and layout.
9. Wide Range of Applications: Suitable for use in industrial, automotive, and consumer electronics where efficient regulation from higher voltages is required.
These features make it suitable for reliable and efficient power supply designs in various applications.
Package
The LM2576HVS-5.0 is a voltage regulator typically available in a TO-220 package. This package type allows for efficient heat dissipation, making it suitable for power applications. The "5.0" denotes a fixed 5V output.
Pinout
The LM2576HVS-5.0 is a high-voltage, step-down voltage regulator designed to provide a 5V output from a higher voltage input. It has a 5-pin configuration, and the functions of these pins are as follows:
1. Vin: This is the input voltage pin, where the unregulated input voltage is applied.
2. Output: This pin provides the regulated 5V output.
3. Ground (GND): This is the ground pin and serves as the reference point for the input and output voltages.
4. Feedback (FB): This pin is used to set the output voltage by connecting it to a voltage divider from the output. For the fixed version (5.0V), this is internally connected and typically not used externally.
5. ON/OFF: This pin is used to enable or disable the regulator. Connecting it to a high voltage enables the regulator, while a low voltage disables it.
The LM2576HVS-5.0 is commonly used in applications requiring efficient voltage regulation with minimal external components.
1. Vin: This is the input voltage pin, where the unregulated input voltage is applied.
2. Output: This pin provides the regulated 5V output.
3. Ground (GND): This is the ground pin and serves as the reference point for the input and output voltages.
4. Feedback (FB): This pin is used to set the output voltage by connecting it to a voltage divider from the output. For the fixed version (5.0V), this is internally connected and typically not used externally.
5. ON/OFF: This pin is used to enable or disable the regulator. Connecting it to a high voltage enables the regulator, while a low voltage disables it.
The LM2576HVS-5.0 is commonly used in applications requiring efficient voltage regulation with minimal external components.
Manufacturer
The LM2576HVS-5.0 is manufactured by Texas Instruments. Texas Instruments (TI) is a global technology company that designs and manufactures semiconductors and various integrated circuits, which it sells to electronics designers and manufacturers worldwide. TI is known for its innovation in analog electronics, embedded processing, and digital signal processing. The company serves a wide range of markets, including automotive, industrial, personal electronics, communications equipment, and enterprise systems. Established in 1930, Texas Instruments has grown to become one of the largest semiconductor companies in the world, recognized for its focus on research and development, as well as its contributions to the advancement of electronic technology.
Application
The LM2576HVS-5.0 is a high-voltage step-down switching voltage regulator used in applications requiring efficient power conversion. It's commonly used in industrial automation, telecommunications, automotive electronics, and embedded systems. Its key features include the ability to handle input voltages up to 60V and deliver a stable 5V output, making it ideal for battery-powered devices, distributed power systems, and any application needing efficient voltage regulation with minimal heat generation.
Equivalent
Equivalent products to the LM2576HVS-5.0, a high-voltage version of the LM2576-5.0 step-down voltage regulator, include:
1. LM2596HVS-5.0: A similar step-down regulator from the same family.
2. L78S05CV: A linear regulator with similar output voltage, although less efficient.
3. AP1509-50: A step-down converter with comparable features.
4. MC34063A: A versatile regulator suitable for similar applications, albeit with external component differences.
Always verify specifications and compatibility with your application before substitution.
1. LM2596HVS-5.0: A similar step-down regulator from the same family.
2. L78S05CV: A linear regulator with similar output voltage, although less efficient.
3. AP1509-50: A step-down converter with comparable features.
4. MC34063A: A versatile regulator suitable for similar applications, albeit with external component differences.
Always verify specifications and compatibility with your application before substitution.
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