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LM2673SX-ADJ
+NomenclatureIC REG BUCK ADJ 3A TO263-7
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FabricantTexas Instruments
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Pièce fabricant #LM2673SX-ADJ
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Package TO-263 (KTW)-7
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En stock6747
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Spécifications
| Attribut | Valeur |
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| Series | SIMPLE SWITCHER® |
| ProductStatus | Not For New Designs |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 8V |
| Voltage-Input(Max) | 40V |
| Voltage-Output(Min/Fixed) | 1.2V |
| Voltage-Output(Max) | 37V |
| Current-Output | 3A |
| Frequency-Switching | 260kHz |
| SynchronousRectifier | No |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | TO-263-8, D²Pak (7 Leads + Tab), TO-263CA |
Présentation
Description
The LM2673SX-ADJ is a versatile, high-efficiency step-down (buck) voltage regulator designed by Texas Instruments. Part of the SIMPLE SWITCHER® series, it is capable of delivering an output current of up to 3A with an adjustable output voltage. The device operates over a wide input voltage range, typically from 8V to 40V, making it suitable for a variety of applications.
Key features include a fixed switching frequency of 260 kHz, ensuring fast transient response and ease of filtering. It incorporates a thermal shutdown, current limit, and short-circuit protection to enhance reliability and safety. The adjustable version allows designers to set the desired output voltage using external resistors.
The LM2673SX-ADJ is known for its efficiency, often exceeding 90%, which minimizes heat generation and energy loss. The device is housed in a TO-263 surface-mount package, providing a compact solution for power supply designs. Its ease of use, combined with robust performance, makes it ideal for powering microcontrollers, sensors, and other digital circuits in industrial, automotive, and consumer electronics applications.
Key features include a fixed switching frequency of 260 kHz, ensuring fast transient response and ease of filtering. It incorporates a thermal shutdown, current limit, and short-circuit protection to enhance reliability and safety. The adjustable version allows designers to set the desired output voltage using external resistors.
The LM2673SX-ADJ is known for its efficiency, often exceeding 90%, which minimizes heat generation and energy loss. The device is housed in a TO-263 surface-mount package, providing a compact solution for power supply designs. Its ease of use, combined with robust performance, makes it ideal for powering microcontrollers, sensors, and other digital circuits in industrial, automotive, and consumer electronics applications.
Equivalent
The LM2673SX-ADJ is a step-down voltage regulator by Texas Instruments. Equivalent products from other manufacturers could include:
1. LT1933 from Analog Devices
2. L4973V5.1 from STMicroelectronics
3. TS2596 from Taiwan Semiconductor
When choosing an equivalent, ensure it matches the key specifications like input voltage range, output current, and switching frequency to ensure compatibility with your application.
1. LT1933 from Analog Devices
2. L4973V5.1 from STMicroelectronics
3. TS2596 from Taiwan Semiconductor
When choosing an equivalent, ensure it matches the key specifications like input voltage range, output current, and switching frequency to ensure compatibility with your application.
Features
The LM2673SX-ADJ is a step-down voltage regulator from Texas Instruments, designed for efficient power management in various applications. Key features include:
1. Adjustable Output Voltage: It allows for an adjustable output voltage, providing flexibility for different requirements.
2. High Efficiency: With efficiencies typically up to 92%, it minimizes heat generation and power loss.
3. Output Current: Capable of delivering up to 3A of continuous output current.
4. Wide Input Voltage Range: It supports a broad input voltage range from 8V to 40V, making it versatile for various systems.
5. Switching Frequency: Operates at a fixed 260 kHz switching frequency, balancing size and efficiency.
6. Protection Features: Includes features like thermal shutdown, current limiting, and an output over-voltage protection to safeguard the device and load.
7. Low Component Count: Requires minimal external components, simplifying design and reducing costs.
8. Package: Available in a TO-263 surface-mount package, offering ease of integration in compact designs.
These features make the LM2673SX-ADJ suitable for applications like power supplies, battery chargers, and distributed power systems.
1. Adjustable Output Voltage: It allows for an adjustable output voltage, providing flexibility for different requirements.
2. High Efficiency: With efficiencies typically up to 92%, it minimizes heat generation and power loss.
3. Output Current: Capable of delivering up to 3A of continuous output current.
4. Wide Input Voltage Range: It supports a broad input voltage range from 8V to 40V, making it versatile for various systems.
5. Switching Frequency: Operates at a fixed 260 kHz switching frequency, balancing size and efficiency.
6. Protection Features: Includes features like thermal shutdown, current limiting, and an output over-voltage protection to safeguard the device and load.
7. Low Component Count: Requires minimal external components, simplifying design and reducing costs.
8. Package: Available in a TO-263 surface-mount package, offering ease of integration in compact designs.
These features make the LM2673SX-ADJ suitable for applications like power supplies, battery chargers, and distributed power systems.
Pinout
The LM2673SX-ADJ is a step-down voltage regulator IC with 16 pins in a surface-mount SOIC package configuration. This adjustable version of the LM2673 series is used for converting higher input voltages to a lower, regulated output voltage.
Key pin functions include:
1. Input Pin (Vin): Connects to the input voltage supply.
2. Output Pin (Vout): Provides the regulated output voltage.
3. Feedback Pin (FB): Used to set the output voltage by connecting to an external resistor divider network.
4. Switching Pin (SW): Connects to the inductor, facilitating the energy transfer.
5. Ground Pins (GND): Serves as the common ground for the entire device.
6. Boost Pin (Boost): Enhances the drive capability of the internal switch.
7. Soft-start/Shutdown Pin (SD): Used for enabling, disabling, or controlling the soft-start feature.
The LM2673SX-ADJ can provide up to 3A of output current, making it suitable for various power management applications in electronic circuits.
Key pin functions include:
1. Input Pin (Vin): Connects to the input voltage supply.
2. Output Pin (Vout): Provides the regulated output voltage.
3. Feedback Pin (FB): Used to set the output voltage by connecting to an external resistor divider network.
4. Switching Pin (SW): Connects to the inductor, facilitating the energy transfer.
5. Ground Pins (GND): Serves as the common ground for the entire device.
6. Boost Pin (Boost): Enhances the drive capability of the internal switch.
7. Soft-start/Shutdown Pin (SD): Used for enabling, disabling, or controlling the soft-start feature.
The LM2673SX-ADJ can provide up to 3A of output current, making it suitable for various power management applications in electronic circuits.
Manufacturer
The LM2673SX-ADJ is a product manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and manufactures a wide range of analog and embedded processing chips. TI's products are used in various applications and industries, including automotive, industrial, personal electronics, communications equipment, and enterprise systems. The company is known for its innovation in the semiconductor industry and has a reputation for producing reliable and high-quality electronic components.
Application
The LM2673SX-ADJ is a step-down voltage regulator designed for a wide range of applications requiring efficient power management. Key areas include:
1. Power Supply Solutions: Utilized in creating efficient DC-DC converters for various electronic devices, offering outputs up to 3A.
2. Embedded Systems: Supports microcontroller and microprocessor power requirements with adjustable output voltages.
3. Consumer Electronics: Powers portable and handheld devices, enabling longer battery life and stable performance.
4. Industrial Equipment: Provides reliable power conversion in automation and control systems.
5. Communication Devices: Used in networking equipment to maintain consistent voltage levels.
These application areas leverage the LM2673SX-ADJ’s efficiency, thermal performance, and adjustable output capability.
1. Power Supply Solutions: Utilized in creating efficient DC-DC converters for various electronic devices, offering outputs up to 3A.
2. Embedded Systems: Supports microcontroller and microprocessor power requirements with adjustable output voltages.
3. Consumer Electronics: Powers portable and handheld devices, enabling longer battery life and stable performance.
4. Industrial Equipment: Provides reliable power conversion in automation and control systems.
5. Communication Devices: Used in networking equipment to maintain consistent voltage levels.
These application areas leverage the LM2673SX-ADJ’s efficiency, thermal performance, and adjustable output capability.
Package
The LM2673SX-ADJ is a step-down voltage regulator from Texas Instruments, typically available in a TO-263 surface-mount package.
