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LM2576R-ADJ
+Lista de MateriaisIC REG BUCK ADJ 3A TO263-5L
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FabricanteTAEJIN
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Peça do Fabricante #LM2576R-ADJ
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Ficha Técnica LM2576R-ADJ DataSheet
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Especificações
| Atributo | Valor |
| Series | SIMPLE SWITCHER® |
| PartStatus | Active |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Max) | 40V |
| Voltage-Output(Min/Fixed) | 1.23V |
| Voltage-Output(Max) | 37V |
| 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 |
| SupplierDevicePackage | TO-263-5L |
Visão Geral
Description
The LM2576R-ADJ is a versatile, high-efficiency step-down (buck) voltage regulator designed to deliver a stable output voltage in adjustable configurations. Capable of outputting up to 3A of load current, it supports an input voltage range of 7V to 40V, making it suitable for a wide variety of applications. The adjustable version allows users to set the output voltage to a desired level using two external resistors.
Key features of the LM2576R-ADJ include a fixed switching frequency of 52 kHz, which minimizes the size of external components and reduces electromagnetic interference (EMI). It also features built-in thermal shutdown, current limiting, and output transistor safe area compensation to enhance reliability and safety.
This regulator is well-suited for applications in industrial automation, battery-powered devices, and embedded systems that require efficient power conversion solutions. Its ease of use, robust performance, and minimal external components make it an ideal choice for both professional engineers and hobbyists.
Key features of the LM2576R-ADJ include a fixed switching frequency of 52 kHz, which minimizes the size of external components and reduces electromagnetic interference (EMI). It also features built-in thermal shutdown, current limiting, and output transistor safe area compensation to enhance reliability and safety.
This regulator is well-suited for applications in industrial automation, battery-powered devices, and embedded systems that require efficient power conversion solutions. Its ease of use, robust performance, and minimal external components make it an ideal choice for both professional engineers and hobbyists.
Equivalent
The LM2576R-ADJ is a popular adjustable voltage regulator with a 3A output current capability. Equivalent products include:
1. LM2596-ADJ: A similar adjustable voltage regulator with a 3A output.
2. L4970A: A switch-mode step-down voltage regulator.
3. MC34063A: A versatile DC-DC converter, though with a lower current rating.
4. TPS54331: A high-efficiency step-down regulator with 3A output.
5. XL4015: A 5A adjustable DC-DC buck converter module.
Ensure compatibility based on specific requirements like input voltage, switching frequency, and package type.
1. LM2596-ADJ: A similar adjustable voltage regulator with a 3A output.
2. L4970A: A switch-mode step-down voltage regulator.
3. MC34063A: A versatile DC-DC converter, though with a lower current rating.
4. TPS54331: A high-efficiency step-down regulator with 3A output.
5. XL4015: A 5A adjustable DC-DC buck converter module.
Ensure compatibility based on specific requirements like input voltage, switching frequency, and package type.
Features
The LM2576R-ADJ is a versatile voltage regulator with the following key features:
1. Wide Input Voltage Range: Operates from 4V to 40V, making it suitable for various applications.
2. Adjustable Output Voltage: Allows output voltage customization from 1.23V to 37V by using an external resistor divider.
3. Output Current: Capable of delivering up to 3A of continuous output current.
4. Efficiency: High efficiency up to 90%, reducing power loss and heat.
5. Simplified Design: Requires minimal external components, simplifying the design process.
6. Fixed Frequency: Operates at a fixed frequency of 52 kHz, optimizing performance and reducing noise.
7. Thermal Shutdown: Includes thermal protection to prevent overheating.
8. Current Limit Protection: Provides protection against overcurrent conditions.
9. Low Output Ripple Voltage: Ensures stable and consistent output voltage.
10. Package Options: Available in TO-220 and TO-263 packages for flexibility in board design.
These features make the LM2576R-ADJ an ideal choice for efficient and reliable DC-DC conversion in a wide range of electronic applications.
1. Wide Input Voltage Range: Operates from 4V to 40V, making it suitable for various applications.
2. Adjustable Output Voltage: Allows output voltage customization from 1.23V to 37V by using an external resistor divider.
3. Output Current: Capable of delivering up to 3A of continuous output current.
4. Efficiency: High efficiency up to 90%, reducing power loss and heat.
5. Simplified Design: Requires minimal external components, simplifying the design process.
6. Fixed Frequency: Operates at a fixed frequency of 52 kHz, optimizing performance and reducing noise.
7. Thermal Shutdown: Includes thermal protection to prevent overheating.
8. Current Limit Protection: Provides protection against overcurrent conditions.
9. Low Output Ripple Voltage: Ensures stable and consistent output voltage.
10. Package Options: Available in TO-220 and TO-263 packages for flexibility in board design.
These features make the LM2576R-ADJ an ideal choice for efficient and reliable DC-DC conversion in a wide range of electronic applications.
Pinout
The LM2576R-ADJ is a step-down voltage regulator with an adjustable output. It is housed in a TO-263 package and has a 5-pin configuration. Here is a brief overview of its pin functions:
1. Pin 1 (Vin): This is the input voltage pin where the unregulated input voltage is applied.
2. Pin 2 (Output): This pin provides the regulated output voltage.
3. Pin 3 (Ground): This is the ground pin and is connected to the ground of the input and output.
4. Pin 4 (Feedback): This pin is used to set the output voltage by connecting it to a voltage divider network.
5. Pin 5 (ON/OFF): This pin is used for enabling or disabling the regulator. Connecting it to ground will enable the regulator, while connecting it to a voltage above 1.2V will disable it.
The LM2576R-ADJ is popular for its efficiency and simplicity in power supply designs, supporting an output current of up to 3A.
1. Pin 1 (Vin): This is the input voltage pin where the unregulated input voltage is applied.
2. Pin 2 (Output): This pin provides the regulated output voltage.
3. Pin 3 (Ground): This is the ground pin and is connected to the ground of the input and output.
4. Pin 4 (Feedback): This pin is used to set the output voltage by connecting it to a voltage divider network.
5. Pin 5 (ON/OFF): This pin is used for enabling or disabling the regulator. Connecting it to ground will enable the regulator, while connecting it to a voltage above 1.2V will disable it.
The LM2576R-ADJ is popular for its efficiency and simplicity in power supply designs, supporting an output current of up to 3A.
Manufacturer
The LM2576R-ADJ is manufactured by Texas Instruments. Texas Instruments (TI) is a global semiconductor company that designs and manufactures a wide range of analog and embedded processing chips. These are used in various applications, including consumer electronics, automotive systems, industrial machinery, and communications equipment. TI is known for its innovation in semiconductor technology and is one of the largest suppliers in the industry, providing solutions that help to improve power management, enhance signal processing, and boost connectivity across various devices and systems.
Application
The LM2576R-ADJ is a versatile step-down voltage regulator commonly used in various applications. It is suitable for power supply solutions in consumer electronics, battery-powered devices, and industrial equipment due to its efficiency and simplicity. Specific application areas include voltage regulation for microcontrollers, powering sensors and communication devices, automotive power systems, and as a replacement for linear regulators to improve energy efficiency. Its adjustable output voltage capability makes it ideal for custom power supply designs where precise voltage levels are necessary. Additionally, it is used in distributed power systems and embedded systems requiring stable voltage outputs.
Package
The LM2576R-ADJ is a voltage regulator integrated circuit available in a TO-220 package. The TO-220 package is commonly used for power semiconductor devices, providing a robust form factor with a metal tab for heat dissipation.
