Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| Series | SIMPLE SWITCHER® |
| ProductStatus | Not For New Designs |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 4V |
| Voltage-Input(Max) | 60V |
| Voltage-Output(Min/Fixed) | 1.23V |
| Voltage-Output(Max) | 57V |
| Current-Output | 1A |
| 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 |
Tổng quan
Description
The LM2575HVSX-ADJ is a high-voltage adjustable version of the LM2575 series of monolithic integrated circuits ideally suited for easy and convenient design of a step-down (buck) switching regulator. It is capable of driving a 1A load with excellent line and load regulation. This device operates at a switching frequency of 52 kHz, allowing for smaller components and efficient performance. The "HVSX" designation indicates that it is a high-voltage type, suitable for input voltages up to 60V.
The "ADJ" in the name signifies that this model has an adjustable output voltage, allowing users to set the desired output voltage between 1.23V and 37V via an external resistor divider. Key features include thermal shutdown, current limiting, and a fixed SW frequency. The device is available in a TO-263 surface mount package for ease of use in various applications, including automotive, industrial, and consumer electronics, where efficient and robust power conversion is necessary.
The "ADJ" in the name signifies that this model has an adjustable output voltage, allowing users to set the desired output voltage between 1.23V and 37V via an external resistor divider. Key features include thermal shutdown, current limiting, and a fixed SW frequency. The device is available in a TO-263 surface mount package for ease of use in various applications, including automotive, industrial, and consumer electronics, where efficient and robust power conversion is necessary.
Equivalent
The LM2575HVSX-ADJ is a high voltage adjustable voltage regulator. Equivalent products include:
1. LM2596HV-ADJ: National Semiconductor's step-down voltage regulator with a higher output current capability.
2. L4970A: STMicroelectronics' step-down switching regulator for similar applications.
3. MC34063A: On Semiconductor's versatile DC-DC converter that can be configured as a step-down regulator.
Ensure specifications like input voltage, output voltage range, and current ratings match your requirements before substituting.
1. LM2596HV-ADJ: National Semiconductor's step-down voltage regulator with a higher output current capability.
2. L4970A: STMicroelectronics' step-down switching regulator for similar applications.
3. MC34063A: On Semiconductor's versatile DC-DC converter that can be configured as a step-down regulator.
Ensure specifications like input voltage, output voltage range, and current ratings match your requirements before substituting.
Features
The LM2575HVSX-ADJ is a high-efficiency step-down (buck) voltage regulator known for its versatility and reliability. Key features include:
1. Adjustable Output Voltage: Capable of providing an adjustable output voltage through an external resistor divider.
2. Wide Input Voltage Range: Operates from 4V to 60V, making it suitable for a variety of applications.
3. Fixed Switching Frequency: Utilizes a switching frequency of 52 kHz for efficient power conversion.
4. Efficiency: Offers high efficiency, typically around 88%, minimizing heat generation and energy loss.
5. Output Current: Supports up to 1A continuous output current, suitable for medium-power applications.
6. Integrated Features: Includes a fixed-frequency oscillator, frequency compensation, and a current-mode control for simplicity.
7. Thermal Shutdown and Current Limit: Protects against overloads and overheating.
8. Low Standby Current: Ensures energy efficiency even in idle mode.
9. Package Options: Available in various package types, facilitating easy integration into existing designs.
These features make the LM2575HVSX-ADJ an excellent choice for applications requiring efficient voltage conversion in a compact and reliable package.
1. Adjustable Output Voltage: Capable of providing an adjustable output voltage through an external resistor divider.
2. Wide Input Voltage Range: Operates from 4V to 60V, making it suitable for a variety of applications.
3. Fixed Switching Frequency: Utilizes a switching frequency of 52 kHz for efficient power conversion.
4. Efficiency: Offers high efficiency, typically around 88%, minimizing heat generation and energy loss.
5. Output Current: Supports up to 1A continuous output current, suitable for medium-power applications.
6. Integrated Features: Includes a fixed-frequency oscillator, frequency compensation, and a current-mode control for simplicity.
7. Thermal Shutdown and Current Limit: Protects against overloads and overheating.
8. Low Standby Current: Ensures energy efficiency even in idle mode.
9. Package Options: Available in various package types, facilitating easy integration into existing designs.
These features make the LM2575HVSX-ADJ an excellent choice for applications requiring efficient voltage conversion in a compact and reliable package.
Pinout
The LM2575HVSX-ADJ is a high-voltage adjustable output voltage regulator from the LM2575 series by Texas Instruments (previously National Semiconductor). It has a 5-pin TO-263 surface-mount package. The function of the LM2575HVSX-ADJ is to provide a step-down (buck) voltage regulation with a wide input voltage range. This particular model is adjustable, allowing for a customizable output voltage.
The pin configuration is as follows:
1. Vin: Input voltage pin where the supply voltage is applied.
2. Output: This is the regulated output voltage pin.
3. Ground (GND): Common ground for the input and output voltages.
4. Feedback (FB): Used to adjust the output voltage through an external resistor divider network.
5. ON/OFF: A shutdown pin used to turn the regulator on or off.
The LM2575HVSX-ADJ is typically used in applications requiring efficient voltage regulation with minimal external components, such as power supplies for industrial equipment and automotive systems.
The pin configuration is as follows:
1. Vin: Input voltage pin where the supply voltage is applied.
2. Output: This is the regulated output voltage pin.
3. Ground (GND): Common ground for the input and output voltages.
4. Feedback (FB): Used to adjust the output voltage through an external resistor divider network.
5. ON/OFF: A shutdown pin used to turn the regulator on or off.
The LM2575HVSX-ADJ is typically used in applications requiring efficient voltage regulation with minimal external components, such as power supplies for industrial equipment and automotive systems.
Manufacturer
The LM2575HVSX-ADJ is manufactured by Texas Instruments, a global semiconductor company. Texas Instruments (TI) is well known for designing and manufacturing a variety of electronic components, including analog and embedded processing chips. TI’s products are used in a wide range of applications, from industrial machinery and automotive systems to consumer electronics and communications equipment. The company focuses on innovation and engineering to supply components that enable efficient power management, signal processing, and data conversion. Texas Instruments is headquartered in Dallas, Texas, and operates globally with a strong emphasis on research and development to drive advancements in technology.
Application
The LM2575HVSX-ADJ is a versatile voltage regulator ideal for applications requiring efficient step-down (buck) conversion. Key application areas include:
1. Embedded Systems: Powering microcontrollers and other low-voltage components.
2. Industrial Automation: Supplying stable power in control systems and sensors.
3. Telecommunications: Regulating power for communication devices and infrastructure.
4. Automotive Electronics: Supporting various electronic components with stable voltage in vehicles.
5. Consumer Electronics: Used in power supplies for gadgets and home appliances.
6. Battery-Powered Devices: Efficiently managing power to extend battery life.
Its adjustable output voltage and high input voltage range make it suitable for diverse applications across various industries.
1. Embedded Systems: Powering microcontrollers and other low-voltage components.
2. Industrial Automation: Supplying stable power in control systems and sensors.
3. Telecommunications: Regulating power for communication devices and infrastructure.
4. Automotive Electronics: Supporting various electronic components with stable voltage in vehicles.
5. Consumer Electronics: Used in power supplies for gadgets and home appliances.
6. Battery-Powered Devices: Efficiently managing power to extend battery life.
Its adjustable output voltage and high input voltage range make it suitable for diverse applications across various industries.
Package
The LM2575HVSX-ADJ is a voltage regulator from Texas Instruments. It is packaged in a TO-263 surface-mount package, which is also known as a D2PAK package. This package type is suitable for applications requiring efficient heat dissipation and space-saving on printed circuit boards.
