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LM2596T-5.0
+Lista de MateriaisIC REG BUCK 5V 3A TO220-5
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FabricanteTexas Instruments
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Peça do Fabricante #LM2596T-5.0
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Pacote TO-220-5
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Especificações
| Atributo | Valor |
| Package / Case | Tube |
| Series | SIMPLE SWITCHER® |
| Part Status | Not For New Designs |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Fixed |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 4.5V |
| Voltage - Input (Max) | 40V |
| Voltage - Output (Min/Fixed) | 5V |
| Current - Output | 3A |
| Frequency - Switching | 150kHz |
| Synchronous Rectifier | No |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Through Hole |
Visão Geral
Description
Key features include a wide input voltage range (typically 4.5V to 40V), a high conversion efficiency of up to 90%, and a low dropout voltage. The device operates at a fixed frequency of 150 kHz, which reduces the size of external components and simplifies the design process.
The LM2596T-5.0 is widely used in applications requiring regulated DC power supply from a higher voltage source, such as battery-powered devices, automotive systems, and industrial equipment. Its robust performance, reliability, and ease of use make it a popular choice in power supply designs.
Equivalent
1. L4970A - A step-down monolithic power switching regulator.
2. LM2576-5.0 - A similar voltage regulator with a 5V output.
3. MC34063A - While not a direct equivalent, it can be configured for similar applications.
4. XL4015 - A 5A DC-DC step-down buck converter.
5. MP2307 - A switch mode step-down regulator.
Ensure pin compatibility and electrical specifications match your requirements before substitution.
Features
1. Output Voltage: Fixed 5.0V output.
2. Input Range: Operates over a wide input voltage range from 4.5V to 40V.
3. Output Current: Capable of delivering up to 3A of output current.
4. Efficiency: High efficiency, typically up to 90%, due to its switching regulator design.
5. Switching Frequency: Operates at a fixed frequency of about 150 kHz, which allows for smaller external components.
6. Thermal Shutdown: Includes thermal shutdown and current limit protection to prevent damage under fault conditions.
7. Regulation: Offers good line and load regulation.
8. Simplicity: Requires few external components for operation, simplifying design.
9. Package Type: Available in a TO-220 package for easy mounting and good thermal performance.
These features make the LM2596T-5.0 suitable for applications needing reliable and efficient DC-DC conversion, such as in power supplies for microcontrollers and other digital circuits.
Pinout
1. Pin 1 (IN): Input voltage pin. This is where the unregulated input voltage is supplied.
2. Pin 2 (GND): Ground pin. It serves as the ground reference for the device and is connected to the ground of the input and output circuits.
3. Pin 3 (OUT): Output voltage pin. This is where the regulated 5.0V output is obtained.
4. Pin 4 (FB): Feedback pin. In the fixed version like the LM2596T-5.0, this pin is internally connected to maintain the fixed output voltage.
5. Pin 5 (ON/OFF): Enable pin. It is used to turn the regulator on or off. It can be connected to a logic level to control the operation of the regulator.
The LM2596T-5.0 is widely used in applications requiring a simple and efficient step-down converter for a fixed 5V output.
Manufacturer
TI was founded in 1930 and has since grown into one of the largest semiconductor companies globally. It serves diverse markets, including automotive, industrial, personal electronics, communications, and enterprise systems. Texas Instruments focuses on innovation and efficiency, enabling designers to create electronic products that are smaller, more efficient, and more reliable. The LM2596T-5.0 is a voltage regulator, specifically a step-down (buck) regulator, widely used in power management to provide a stable output voltage of 5.0V.
Application
1. Power Supply Solutions: Provides efficient step-down voltage regulation for DC-DC converters in power supplies for various electronics.
2. Battery Chargers: Used in designing efficient battery charging circuits.
3. Embedded Systems: Supplies stable 5V power to microcontrollers and other digital components.
4. Consumer Electronics: Powers devices such as set-top boxes, networking equipment, and portable electronics.
5. Industrial Automation: Used in control systems and industrial applications requiring reliable power management.
Its capability to handle up to 3A of current makes it versatile for many medium-power applications.