仕様
| 属性 | 値 |
| Package | Tape & Reel (TR) |
| 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) | 12V |
| 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 |
概要
Description
The LM2576HVSX-12 is a high-efficiency, step-down voltage regulator from Texas Instruments. It's part of the LM2576 series, designed for easy and efficient implementation in power supply applications. This specific variant is tailored for higher input voltages, accepting up to 60 volts, and outputs a fixed 12 volts. Key features include a switch-mode design for greater efficiency compared to linear regulators, typically around 77% to 90%, minimizing heat dissipation and extending battery life in portable applications.
The device offers a simplified design requiring few external components, which aids in reducing the overall system size and cost. The LM2576HVSX-12 includes built-in features like thermal shutdown, current limiting, and an error flag output for improved reliability and safety. Its TO-263 surface-mount package allows for efficient thermal management and easy integration into various electronic circuits. This regulator is suitable for applications such as battery chargers, power management in automotive systems, and distributed power systems.
The device offers a simplified design requiring few external components, which aids in reducing the overall system size and cost. The LM2576HVSX-12 includes built-in features like thermal shutdown, current limiting, and an error flag output for improved reliability and safety. Its TO-263 surface-mount package allows for efficient thermal management and easy integration into various electronic circuits. This regulator is suitable for applications such as battery chargers, power management in automotive systems, and distributed power systems.
Equivalent
The LM2576HVSX-12 is a high-voltage version of the LM2576 series, which is a step-down voltage regulator. Equivalent products include:
1. LM2596HVS-12: Another high-voltage step-down regulator from Texas Instruments, offering similar functionality.
2. XL4015: A step-down DC-DC converter with similar voltage and current ratings.
3. L78S12CV: While not a direct equivalent, this linear regulator can serve in applications with suitable conditions.
Ensure compatibility with your specific design requirements before using any alternative.
1. LM2596HVS-12: Another high-voltage step-down regulator from Texas Instruments, offering similar functionality.
2. XL4015: A step-down DC-DC converter with similar voltage and current ratings.
3. L78S12CV: While not a direct equivalent, this linear regulator can serve in applications with suitable conditions.
Ensure compatibility with your specific design requirements before using any alternative.
Features
The LM2576HVSX-12 is a high-efficiency, step-down voltage regulator designed for applications requiring a 12V output. Key features include:
1. Wide Input Voltage Range: It can handle input voltages from 4V to 60V, making it suitable for a broad range of applications.
2. Fixed Output Voltage: Delivers a stable 12V output, ideal for powering various electronic devices.
3. High Efficiency: Typically achieves efficiency greater than 80%, which helps in reducing heat generation and power loss.
4. Output Current: Capable of delivering up to 3A of continuous output current, sufficient for many medium-power applications.
5. Simple Design: Requires minimal external components, simplifying the overall circuit design.
6. Integrated Switch: Features an internal switch, reducing the need for external switching components.
7. Protection Features: Includes built-in thermal shutdown and current limit protection for enhanced reliability.
8. Low Quiescent Current: Offers low power consumption during idle states, which is beneficial for battery-operated devices.
This makes the LM2576HVSX-12 a versatile and efficient choice for various power supply applications.
1. Wide Input Voltage Range: It can handle input voltages from 4V to 60V, making it suitable for a broad range of applications.
2. Fixed Output Voltage: Delivers a stable 12V output, ideal for powering various electronic devices.
3. High Efficiency: Typically achieves efficiency greater than 80%, which helps in reducing heat generation and power loss.
4. Output Current: Capable of delivering up to 3A of continuous output current, sufficient for many medium-power applications.
5. Simple Design: Requires minimal external components, simplifying the overall circuit design.
6. Integrated Switch: Features an internal switch, reducing the need for external switching components.
7. Protection Features: Includes built-in thermal shutdown and current limit protection for enhanced reliability.
8. Low Quiescent Current: Offers low power consumption during idle states, which is beneficial for battery-operated devices.
This makes the LM2576HVSX-12 a versatile and efficient choice for various power supply applications.
Pinout
The LM2576HVSX-12 is a high-voltage version of the LM2576 series, which is a simple switcher voltage regulator. It is designed for step-down (buck) voltage regulation and is capable of driving a 3A load with excellent line and load regulation. The LM2576HVSX-12 specifically outputs 12V.
The device comes in a TO-263-5 package and has 5 pins with the following functions:
1. VIN: This is the input voltage pin where the unregulated input voltage is applied.
2. Output: This pin provides the regulated output voltage.
3. Ground (GND): This pin is the ground reference for the device.
4. Feedback (FB): This pin is used to set the output voltage via an external resistor divider.
5. ON/OFF: This pin is used for enabling or disabling the device. A low level turns the regulator off, reducing the input supply current.
The LM2576HVSX-12 is primarily used in applications requiring simple, efficient, and high-voltage regulation, such as in battery-powered systems and industrial supplies.
The device comes in a TO-263-5 package and has 5 pins with the following functions:
1. VIN: This is the input voltage pin where the unregulated input voltage is applied.
2. Output: This pin provides the regulated output voltage.
3. Ground (GND): This pin is the ground reference for the device.
4. Feedback (FB): This pin is used to set the output voltage via an external resistor divider.
5. ON/OFF: This pin is used for enabling or disabling the device. A low level turns the regulator off, reducing the input supply current.
The LM2576HVSX-12 is primarily used in applications requiring simple, efficient, and high-voltage regulation, such as in battery-powered systems and industrial supplies.
Manufacturer
The LM2576HVSX-12 is manufactured by Texas Instruments (TI). Texas Instruments is a global technology company that designs and manufactures semiconductors and various integrated circuits, which are used in electronic devices and systems. TI is known for its innovation in the electronics industry and offers a wide range of products, including analog chips, digital signal processors, and microcontrollers. The company serves various markets such as automotive, industrial, personal electronics, communications equipment, and enterprise systems. With a strong focus on research and development, TI strives to provide efficient, high-performance solutions that enable advancements in technology and improve everyday life.
Application
The LM2576HVSX-12 is a step-down voltage regulator commonly used in applications requiring a stable DC output from a higher input voltage. Key application areas include:
1. Power Supply Solutions: Used in designing efficient, low-cost power supplies for various electronic devices.
2. Embedded Systems: Provides reliable power management in industrial and consumer embedded systems.
3. Automotive Electronics: Suitable for automotive applications due to its wide input voltage range and high efficiency.
4. Communication Equipment: Powers communication devices requiring stable voltage levels.
5. Battery Chargers: Used in battery charging circuits for efficient energy conversion.
These applications benefit from its efficiency, thermal protection, and ease of use.
1. Power Supply Solutions: Used in designing efficient, low-cost power supplies for various electronic devices.
2. Embedded Systems: Provides reliable power management in industrial and consumer embedded systems.
3. Automotive Electronics: Suitable for automotive applications due to its wide input voltage range and high efficiency.
4. Communication Equipment: Powers communication devices requiring stable voltage levels.
5. Battery Chargers: Used in battery charging circuits for efficient energy conversion.
These applications benefit from its efficiency, thermal protection, and ease of use.
Package
The LM2576HVSX-12 is a high-voltage step-down voltage regulator from Texas Instruments. It comes in a TO-263 surface-mount package, specifically a 5-pin package, designed for efficient heat dissipation and compact applications.
