規格
| 屬性 | 價值 |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| Function | Step-Down |
| OutputConfiguration | Positive or Negative |
| Topology | Buck |
| OutputType | Fixed |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 7V |
| Voltage-Input(Max) | 40V |
| 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 LM2576D2TR4-5G is a voltage regulator integrated circuit (IC) designed by ON Semiconductor. It is part of the LM2576 series, known for its efficiency in step-down (buck) voltage conversion. The "D2TR4" refers to its specific packaging and tape reel specifications, while "-5G" indicates a fixed 5V output voltage. This IC is capable of handling input voltages ranging from 7V to 40V and delivers an output current of up to 3A, making it suitable for a variety of power management applications in consumer electronics, automotive systems, and industrial equipment.
The LM2576D2TR4-5G features an internal frequency compensation and a fixed-frequency oscillator, which simplifies the design process. It also includes protection mechanisms such as thermal shutdown and current limiting to enhance reliability. Its high efficiency reduces power loss, allowing for a compact design with minimal external components. The device operates over a wide temperature range, making it versatile for different environmental conditions. Overall, the LM2576D2TR4-5G offers a robust solution for efficient power regulation with minimal noise and heat generation.
The LM2576D2TR4-5G features an internal frequency compensation and a fixed-frequency oscillator, which simplifies the design process. It also includes protection mechanisms such as thermal shutdown and current limiting to enhance reliability. Its high efficiency reduces power loss, allowing for a compact design with minimal external components. The device operates over a wide temperature range, making it versatile for different environmental conditions. Overall, the LM2576D2TR4-5G offers a robust solution for efficient power regulation with minimal noise and heat generation.
Equivalent
The LM2576D2TR4-5G is a 3A, step-down voltage regulator. Equivalent products include:
1. LM2596 series (by Texas Instruments)
2. L4970A (by STMicroelectronics)
3. MC34063 (for lower current applications)
4. LM2678 series (for higher current applications)
5. MP1584 (by Monolithic Power Systems)
When choosing equivalents, ensure that the voltage and current ratings match your specific needs. Always verify compatibility with your application's requirements.
1. LM2596 series (by Texas Instruments)
2. L4970A (by STMicroelectronics)
3. MC34063 (for lower current applications)
4. LM2678 series (for higher current applications)
5. MP1584 (by Monolithic Power Systems)
When choosing equivalents, ensure that the voltage and current ratings match your specific needs. Always verify compatibility with your application's requirements.
Features
The LM2576D2TR4-5G is a step-down voltage regulator designed for efficient power management. Key features include:
1. Output Voltage: Fixed at 5V, suitable for various applications requiring a stable 5V output.
2. Input Voltage Range: Can handle a wide input range, typically up to 40V, making it versatile for different power sources.
3. Output Current: Capable of delivering up to 3A of output current, supporting medium-power applications.
4. Efficiency: High efficiency, often over 70%, reducing heat dissipation and improving performance.
5. Switching Frequency: Operates at a fixed frequency, around 52 kHz, which helps in reducing noise and improving stability.
6. Thermal Shutdown: Includes thermal protection to prevent damage from overheating.
7. Current Limiting: Built-in current limiting to safeguard against overload conditions.
8. Package: Available in a surface-mount package (D2PAK), facilitating compact design and easy integration into PCBs.
9. Dropout Voltage: Low dropout voltage characteristic, enhancing efficiency across varying loads.
These features make the LM2576D2TR4-5G suitable for applications in consumer electronics, automotive, and industrial systems requiring reliable and efficient voltage regulation.
1. Output Voltage: Fixed at 5V, suitable for various applications requiring a stable 5V output.
2. Input Voltage Range: Can handle a wide input range, typically up to 40V, making it versatile for different power sources.
3. Output Current: Capable of delivering up to 3A of output current, supporting medium-power applications.
4. Efficiency: High efficiency, often over 70%, reducing heat dissipation and improving performance.
5. Switching Frequency: Operates at a fixed frequency, around 52 kHz, which helps in reducing noise and improving stability.
6. Thermal Shutdown: Includes thermal protection to prevent damage from overheating.
7. Current Limiting: Built-in current limiting to safeguard against overload conditions.
8. Package: Available in a surface-mount package (D2PAK), facilitating compact design and easy integration into PCBs.
9. Dropout Voltage: Low dropout voltage characteristic, enhancing efficiency across varying loads.
These features make the LM2576D2TR4-5G suitable for applications in consumer electronics, automotive, and industrial systems requiring reliable and efficient voltage regulation.
Pinout
The LM2576D2TR4-5G is a step-down voltage regulator from the LM2576 series, designed for efficient voltage conversion with minimal external components. It is typically available in a TO-263 package, which commonly has 5 pins. The pin functions are as follows:
1. Vin: Input voltage pin where the unregulated input voltage is supplied.
2. Vout: Output voltage pin that provides the regulated output voltage.
3. GND: Ground pin that serves as the return path for input and output.
4. Feedback (FB): This pin is used to provide feedback to the internal control circuitry to maintain the desired output voltage by comparing it with an internal reference voltage.
5. ON/OFF: This pin allows the device to be turned on or off by an external signal. It can be used for power-saving purposes.
The LM2576D2TR4-5G is specifically set to provide a 5V output and is capable of delivering up to 3A of output current, making it suitable for a variety of power management applications.
1. Vin: Input voltage pin where the unregulated input voltage is supplied.
2. Vout: Output voltage pin that provides the regulated output voltage.
3. GND: Ground pin that serves as the return path for input and output.
4. Feedback (FB): This pin is used to provide feedback to the internal control circuitry to maintain the desired output voltage by comparing it with an internal reference voltage.
5. ON/OFF: This pin allows the device to be turned on or off by an external signal. It can be used for power-saving purposes.
The LM2576D2TR4-5G is specifically set to provide a 5V output and is capable of delivering up to 3A of output current, making it suitable for a variety of power management applications.
Manufacturer
The LM2576D2TR4-5G is manufactured by ON Semiconductor, now known as onsemi. Onsemi is a leading supplier of semiconductor-based solutions, offering a comprehensive portfolio of energy-efficient power and signal management, logic, standard, and custom devices. They serve a broad array of markets, including automotive, industrial, cloud power, and Internet of Things (IoT). The company is recognized for its commitment to advancing technology in energy-efficient innovations, contributing to the development of a more sustainable future.
Application
The LM2576D2TR4-5G is a step-down voltage regulator primarily used in applications requiring efficient power conversion. Its key application areas include:
1. DC-DC Power Conversion: Used in converting higher DC input voltage to lower DC output voltage for various electronic devices.
2. Consumer Electronics: Provides power regulation for devices like TVs, set-top boxes, and gaming consoles.
3. Industrial Equipment: Used in power supplies for industrial automation systems and instrumentation.
4. Automotive Systems: Powers components in automotive electronics, including infotainment systems and adaptive lighting.
5. Telecommunications: Supports power management needs in networking equipment.
Its efficiency, simplicity, and wide input voltage range make it suitable for these varied applications.
1. DC-DC Power Conversion: Used in converting higher DC input voltage to lower DC output voltage for various electronic devices.
2. Consumer Electronics: Provides power regulation for devices like TVs, set-top boxes, and gaming consoles.
3. Industrial Equipment: Used in power supplies for industrial automation systems and instrumentation.
4. Automotive Systems: Powers components in automotive electronics, including infotainment systems and adaptive lighting.
5. Telecommunications: Supports power management needs in networking equipment.
Its efficiency, simplicity, and wide input voltage range make it suitable for these varied applications.
Package
The LM2576D2TR4-5G is a TO-263 surface-mount package. It's designed for DC-DC step-down voltage regulator applications, providing efficient and reliable power conversion. The "D2" denotes a TO-263-3 package with a specific pin configuration, and "TR" usually indicates that the device is supplied in tape and reel format for automated assembly processes.
