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LM2596S-ADJ
+NomenclatureIC REG BUCK ADJ 3A TO263-5
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FabricantTexas Instruments
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Pièce fabricant #LM2596S-ADJ
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Package TO-263-5
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En stock5265
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Spécifications
| Attribut | Valeur |
| Package | Tube |
| Series | SIMPLE SWITCHER® |
| ProductStatus | Obsolete |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 4.5V |
| Voltage-Input(Max) | 40V |
| Voltage-Output(Min/Fixed) | 1.2V |
| Voltage-Output(Max) | 37V |
| Current-Output | 3A |
| Frequency-Switching | 150kHz |
| SynchronousRectifier | No |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | TO-263-6, D²Pak (5 Leads + Tab), TO-263BA |
Présentation
Description
The LM2596S-ADJ is a popular adjustable voltage regulator from the LM2596 series manufactured by Texas Instruments. It is a step-down (buck) switching regulator designed to provide a highly efficient way to convert higher DC input voltages down to a lower DC output voltage. The "ADJ" in its name indicates that the output voltage is adjustable.
Key features include:
- Wide Input Voltage Range: 4.5V to 40V.
- Adjustable Output Voltage: Set via an external resistor divider, ranging from 1.23V to 37V.
- Output Current: Capable of delivering up to 3A of output current.
- Efficiency: Typically around 80-90%, depending on the voltage difference and load.
- Switching Frequency: Fixed, usually around 150 kHz.
- Thermal and Short Circuit Protection: Safeguards against overheating and output short circuits.
The LM2596S-ADJ is commonly used in applications requiring efficient power conversion, such as battery chargers, power supply units, and onboard power regulation in electronic devices. Its robust performance and versatility make it a favored choice in both hobbyist and professional circuits.
Key features include:
- Wide Input Voltage Range: 4.5V to 40V.
- Adjustable Output Voltage: Set via an external resistor divider, ranging from 1.23V to 37V.
- Output Current: Capable of delivering up to 3A of output current.
- Efficiency: Typically around 80-90%, depending on the voltage difference and load.
- Switching Frequency: Fixed, usually around 150 kHz.
- Thermal and Short Circuit Protection: Safeguards against overheating and output short circuits.
The LM2596S-ADJ is commonly used in applications requiring efficient power conversion, such as battery chargers, power supply units, and onboard power regulation in electronic devices. Its robust performance and versatility make it a favored choice in both hobbyist and professional circuits.
Equivalent
The LM2596S-ADJ is a step-down voltage regulator. Equivalent products include:
1. LM2576-ADJ - Similar function with a slightly different design.
2. XL4015 - A higher current capacity option for similar applications.
3. MP1584EN - A compact alternative with similar adjustable output.
4. MC34063A - Offers a less integrated, more flexible solution.
5. L78S40 - Another adjustable switching regulator option.
These alternatives vary by specifications like input voltage, efficiency, and package type. Always verify compatibility with your specific requirements.
1. LM2576-ADJ - Similar function with a slightly different design.
2. XL4015 - A higher current capacity option for similar applications.
3. MP1584EN - A compact alternative with similar adjustable output.
4. MC34063A - Offers a less integrated, more flexible solution.
5. L78S40 - Another adjustable switching regulator option.
These alternatives vary by specifications like input voltage, efficiency, and package type. Always verify compatibility with your specific requirements.
Features
The LM2596S-ADJ is a versatile step-down (buck) voltage regulator known for its efficiency and ease of use. Key features include:
1. Adjustable Output: It offers an adjustable output voltage, allowing users to tailor the output from 1.2V to 37V with an external resistor divider.
2. Output Current: Capable of delivering up to 3A of load current.
3. Efficiency: High efficiency, typically around 77-90%, due to its switching design.
4. Input Voltage Range: Supports a wide input voltage range from 4.5V to 40V, accommodating various applications.
5. Fixed Switching Frequency: Operates at a fixed frequency of approximately 150 kHz, reducing electromagnetic interference (EMI).
6. Thermal Shutdown: Includes thermal shutdown and current limit protection for enhanced reliability.
7. Simple Design: Requires minimal external components, simplifying the design process.
8. Package: Available in a TO-263 surface-mount package, making it suitable for compact designs.
These features make the LM2596S-ADJ suitable for various applications, including power supplies for battery chargers, LED drivers, and general-purpose DC-DC conversion tasks.
1. Adjustable Output: It offers an adjustable output voltage, allowing users to tailor the output from 1.2V to 37V with an external resistor divider.
2. Output Current: Capable of delivering up to 3A of load current.
3. Efficiency: High efficiency, typically around 77-90%, due to its switching design.
4. Input Voltage Range: Supports a wide input voltage range from 4.5V to 40V, accommodating various applications.
5. Fixed Switching Frequency: Operates at a fixed frequency of approximately 150 kHz, reducing electromagnetic interference (EMI).
6. Thermal Shutdown: Includes thermal shutdown and current limit protection for enhanced reliability.
7. Simple Design: Requires minimal external components, simplifying the design process.
8. Package: Available in a TO-263 surface-mount package, making it suitable for compact designs.
These features make the LM2596S-ADJ suitable for various applications, including power supplies for battery chargers, LED drivers, and general-purpose DC-DC conversion tasks.
Pinout
The LM2596S-ADJ is a 5-pin adjustable voltage regulator commonly used for step-down (buck) converter applications. Here is a concise overview of its pin count and functions:
1. Pin 1 (Vin): This is the input pin where the supply voltage is connected. The voltage range for this pin can typically be from 4.5V to 40V.
2. Pin 2 (Output): This output pin delivers the regulated voltage to the load. The output voltage is adjustable based on the external resistor divider connected to the feedback pin.
3. Pin 3 (Ground): This pin is the ground reference for both the input and output voltages.
4. Pin 4 (Feedback): This pin is used to adjust the output voltage. It connects to a resistor divider from the output to ground to set the desired output voltage.
5. Pin 5 (ON/OFF): This is an enable pin, which can be used to turn the regulator on or off. A voltage above a certain threshold (typically 1.3V) will disable the regulator.
The LM2596S-ADJ is widely used due to its efficiency and ease of use in various DC-DC conversion applications.
1. Pin 1 (Vin): This is the input pin where the supply voltage is connected. The voltage range for this pin can typically be from 4.5V to 40V.
2. Pin 2 (Output): This output pin delivers the regulated voltage to the load. The output voltage is adjustable based on the external resistor divider connected to the feedback pin.
3. Pin 3 (Ground): This pin is the ground reference for both the input and output voltages.
4. Pin 4 (Feedback): This pin is used to adjust the output voltage. It connects to a resistor divider from the output to ground to set the desired output voltage.
5. Pin 5 (ON/OFF): This is an enable pin, which can be used to turn the regulator on or off. A voltage above a certain threshold (typically 1.3V) will disable the regulator.
The LM2596S-ADJ is widely used due to its efficiency and ease of use in various DC-DC conversion applications.
Manufacturer
The LM2596S-ADJ is manufactured by Texas Instruments. Texas Instruments (TI) is a global semiconductor company based in Dallas, Texas. It designs and manufactures a wide range of electronic components, including integrated circuits, processors, and analog devices. TI serves various industries, such as automotive, industrial, personal electronics, and communications equipment, providing technology solutions that improve electronics' efficiency, performance, and reliability. The company is known for its innovation in analog technology and embedded processing, and it has a strong presence in educational initiatives, supporting STEM education and research.
Application
The LM2596S-ADJ is a versatile buck converter used in various applications where efficient voltage regulation is required. Common application areas include:
1. Power Supply Systems: Used in step-down voltage regulation for various electronic devices.
2. Consumer Electronics: Facilitates voltage conversion in devices like TVs, radios, and gaming consoles.
3. Industrial Equipment: Provides reliable power management in automation systems and machinery.
4. Battery Chargers: Used in charging circuits for lithium-ion and other battery types, ensuring efficient charging.
5. Communication Equipment: Supports stable power supply for routers, modems, and other network devices.
6. Automotive Electronics: Manages power for car audio systems, GPS units, and other in-vehicle electronics.
1. Power Supply Systems: Used in step-down voltage regulation for various electronic devices.
2. Consumer Electronics: Facilitates voltage conversion in devices like TVs, radios, and gaming consoles.
3. Industrial Equipment: Provides reliable power management in automation systems and machinery.
4. Battery Chargers: Used in charging circuits for lithium-ion and other battery types, ensuring efficient charging.
5. Communication Equipment: Supports stable power supply for routers, modems, and other network devices.
6. Automotive Electronics: Manages power for car audio systems, GPS units, and other in-vehicle electronics.
Package
The LM2596S-ADJ is available in a TO-263 (also known as DDPAK or D2PAK) package. This package type is designed for surface-mount applications, providing efficient heat dissipation and space-saving benefits on printed circuit boards.
