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LM2576S-5.0
+Lista de MateriaisIC REG BUCK 5V 3A TO263-5
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FabricanteTexas Instruments
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Peça do Fabricante #LM2576S-5.0
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Pacote TO-263-5
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Especificações
| Atributo | Valor |
| 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) | 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 |
Visão Geral
Description
The LM2576S-5.0 is a step-down voltage regulator designed by Texas Instruments, aimed at simplifying the design of power supply systems. It is part of the LM2576 series featuring a fixed output voltage of 5.0V. The device is capable of delivering an output current of up to 3A with high efficiency, making it suitable for applications requiring a reliable power source.
The LM2576S-5.0 operates within a wide input voltage range and offers features such as excellent line and load regulation, and a typical efficiency of up to 90%, which helps in minimizing heat generation and improving overall system efficiency. It also includes an internal frequency compensation and an oscillator, which simplifies the design process further.
The regulator is known for its robust performance with built-in protection features such as current limiting, thermal shutdown, and an ON/OFF pin for low-power standby mode. Applications include powering digital circuits, battery chargers, and more in consumer electronics, industrial equipment, and automotive systems. Its simplicity and performance make it a popular choice for DC-DC conversion applications.
The LM2576S-5.0 operates within a wide input voltage range and offers features such as excellent line and load regulation, and a typical efficiency of up to 90%, which helps in minimizing heat generation and improving overall system efficiency. It also includes an internal frequency compensation and an oscillator, which simplifies the design process further.
The regulator is known for its robust performance with built-in protection features such as current limiting, thermal shutdown, and an ON/OFF pin for low-power standby mode. Applications include powering digital circuits, battery chargers, and more in consumer electronics, industrial equipment, and automotive systems. Its simplicity and performance make it a popular choice for DC-DC conversion applications.
Equivalent
The LM2576S-5.0 is a step-down voltage regulator. Equivalent products include:
1. LM2596-5.0: Another popular step-down (buck) regulator with similar specifications.
2. MC34063: A versatile DC-DC converter with step-down configuration.
3. L4970A: Offers similar functionality but may differ in pin-out and ratings.
4. XL4015: Provides similar performance with additional features.
5. AP1509: Offers comparable output voltage regulation.
Always verify pin compatibility and electrical specifications before substitution.
1. LM2596-5.0: Another popular step-down (buck) regulator with similar specifications.
2. MC34063: A versatile DC-DC converter with step-down configuration.
3. L4970A: Offers similar functionality but may differ in pin-out and ratings.
4. XL4015: Provides similar performance with additional features.
5. AP1509: Offers comparable output voltage regulation.
Always verify pin compatibility and electrical specifications before substitution.
Features
The LM2576S-5.0 is a fixed output voltage regulator designed for step-down (buck) applications. Key features include:
1. Output Voltage: Fixed at 5.0V.
2. Input Voltage Range: Typically supports 7V to 40V.
3. Output Current: Capable of providing up to 3A.
4. Efficiency: High efficiency up to 90% due to its switching regulation.
5. Switching Frequency: Fixed frequency operation at 52 kHz reduces output capacitance and inductance requirements.
6. Thermal Shutdown: Protects the device from overheating.
7. Current Limiting: Provides overload protection.
8. Output Voltage Tolerance: ±4% over line, load, and temperature conditions.
9. Simple Design: Requires a minimal number of external components.
10. TO-263 Package: Surface mount for efficient thermal performance.
11. Low Quiescent Current: Efficient in no-load conditions.
These features make the LM2576S-5.0 suitable for a wide range of applications, including power supplies for industrial equipment, battery-powered devices, and automotive systems.
1. Output Voltage: Fixed at 5.0V.
2. Input Voltage Range: Typically supports 7V to 40V.
3. Output Current: Capable of providing up to 3A.
4. Efficiency: High efficiency up to 90% due to its switching regulation.
5. Switching Frequency: Fixed frequency operation at 52 kHz reduces output capacitance and inductance requirements.
6. Thermal Shutdown: Protects the device from overheating.
7. Current Limiting: Provides overload protection.
8. Output Voltage Tolerance: ±4% over line, load, and temperature conditions.
9. Simple Design: Requires a minimal number of external components.
10. TO-263 Package: Surface mount for efficient thermal performance.
11. Low Quiescent Current: Efficient in no-load conditions.
These features make the LM2576S-5.0 suitable for a wide range of applications, including power supplies for industrial equipment, battery-powered devices, and automotive systems.
Pinout
The LM2576S-5.0 is a step-down voltage regulator with a fixed output voltage of 5.0V. It features a 5-pin configuration with the following functions:
1. Pin 1 (VIN): This is the input pin where the input voltage is supplied. The IC can handle input voltages up to 40V.
2. Pin 2 (Output): This pin provides the regulated output voltage. It can deliver up to 3A of output current.
3. Pin 3 (Ground): This is the ground reference for the device, used for both input and output.
4. Pin 4 (Feedback): This pin is usually connected directly to the output for the fixed voltage version. It monitors the output voltage to maintain regulation.
5. Pin 5 (ON/OFF): This pin is used to enable or disable the regulator. A low logic level turns the regulator off, while a high logic level turns it on.
The LM2576S-5.0 offers efficient power conversion and is commonly used in power supply designs requiring a stable 5V output.
1. Pin 1 (VIN): This is the input pin where the input voltage is supplied. The IC can handle input voltages up to 40V.
2. Pin 2 (Output): This pin provides the regulated output voltage. It can deliver up to 3A of output current.
3. Pin 3 (Ground): This is the ground reference for the device, used for both input and output.
4. Pin 4 (Feedback): This pin is usually connected directly to the output for the fixed voltage version. It monitors the output voltage to maintain regulation.
5. Pin 5 (ON/OFF): This pin is used to enable or disable the regulator. A low logic level turns the regulator off, while a high logic level turns it on.
The LM2576S-5.0 offers efficient power conversion and is commonly used in power supply designs requiring a stable 5V output.
Manufacturer
The LM2576S-5.0 is a voltage regulator manufactured by Texas Instruments. Texas Instruments (TI) is a global semiconductor company known for designing and manufacturing a wide range of electronic components, including integrated circuits used in various electronic devices and systems. TI focuses on developing analog chips and embedded processors, and its products are used in applications spanning industrial, automotive, personal electronics, communications, and enterprise systems. The company is recognized for its innovation in electronics and has a significant presence in research and development, contributing to advancements in technology.
Application
The LM2576S-5.0 is a step-down (buck) voltage regulator used in various applications due to its efficiency and simplicity. Key application areas include:
1. Power Supply Solutions: Used in regulated power supplies for industrial and consumer electronics.
2. Battery-Powered Devices: Ideal for extending battery life in portable devices.
3. Embedded Systems: Provides reliable voltage regulation for microcontrollers and processors.
4. Automotive Electronics: Powers various subsystems in vehicles, ensuring stable voltage despite battery fluctuations.
5. Communication Equipment: Supplies steady power in networking devices.
6. Industrial Controls: Used in systems requiring robust voltage regulation under varying loads.
Its wide input voltage range and efficient performance make it versatile for many DC-DC conversion needs.
1. Power Supply Solutions: Used in regulated power supplies for industrial and consumer electronics.
2. Battery-Powered Devices: Ideal for extending battery life in portable devices.
3. Embedded Systems: Provides reliable voltage regulation for microcontrollers and processors.
4. Automotive Electronics: Powers various subsystems in vehicles, ensuring stable voltage despite battery fluctuations.
5. Communication Equipment: Supplies steady power in networking devices.
6. Industrial Controls: Used in systems requiring robust voltage regulation under varying loads.
Its wide input voltage range and efficient performance make it versatile for many DC-DC conversion needs.
Package
The LM2576S-5.0 is a step-down voltage regulator with a TO-263 surface-mount package. This type of package is designed for efficient thermal performance and compact size, suitable for applications requiring efficient power conversion in a small form factor.
