Specifications
| Attribute | Value |
| Package | Tube,Tube |
| ProductStatus | Obsolete |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 4.75V |
| Voltage-Input(Max) | 40V |
| Voltage-Output(Min/Fixed) | 1.23V |
| Voltage-Output(Max) | 37V |
| Current-Output | 1A |
| Frequency-Switching | 52kHz |
| SynchronousRectifier | No |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Through Hole |
| Package/Case | TO-220-5 |
Overview
Description
The LM2575T-ADJ is a versatile, adjustable voltage regulator from the LM2575 series, designed by Texas Instruments. This component is a step-down (buck) voltage regulator capable of delivering a fixed output voltage from a higher input voltage, making it ideal for a variety of power management applications. It can handle input voltages up to 40V and provides a regulated output with currents up to 1A.
Key features include an adjustable output voltage ranging from 1.23V to 37V, which can be set using an external resistor divider. The device is known for its efficiency, typically around 88%, and its ability to operate at a fixed frequency of 52 kHz, which helps reduce the size of external components. Built-in features like thermal shutdown, current limiting, and a maximum duty cycle of 98% enhance reliability and safety.
The LM2575T-ADJ comes in a TO-220 package, making it easy to mount on a heat sink for applications requiring enhanced thermal performance. Overall, it is a reliable choice for efficient power conversion in various electronic devices.
Key features include an adjustable output voltage ranging from 1.23V to 37V, which can be set using an external resistor divider. The device is known for its efficiency, typically around 88%, and its ability to operate at a fixed frequency of 52 kHz, which helps reduce the size of external components. Built-in features like thermal shutdown, current limiting, and a maximum duty cycle of 98% enhance reliability and safety.
The LM2575T-ADJ comes in a TO-220 package, making it easy to mount on a heat sink for applications requiring enhanced thermal performance. Overall, it is a reliable choice for efficient power conversion in various electronic devices.
Equivalent
The LM2575T-ADJ is a step-down (buck) voltage regulator. Equivalent products include:
1. LM2596T-ADJ by Texas Instruments: A similar adjustable voltage regulator with higher current rating.
2. MC34063 by ON Semiconductor: A more basic and versatile regulator with similar functionality.
3. L4970A by STMicroelectronics: Offers similar buck conversion capabilities.
4. MC34167 by ON Semiconductor: A robust alternative for high-current applications.
These equivalents vary in features, so ensure compatibility for your specific application.
1. LM2596T-ADJ by Texas Instruments: A similar adjustable voltage regulator with higher current rating.
2. MC34063 by ON Semiconductor: A more basic and versatile regulator with similar functionality.
3. L4970A by STMicroelectronics: Offers similar buck conversion capabilities.
4. MC34167 by ON Semiconductor: A robust alternative for high-current applications.
These equivalents vary in features, so ensure compatibility for your specific application.
Features
The LM2575T-ADJ is a versatile adjustable voltage regulator designed for efficient step-down (buck) DC-DC conversion. Key features include:
1. Adjustable Output Voltage: Capable of delivering an adjustable output voltage, typically ranging from 1.23V to 37V, depending on external components.
2. Output Current: Can deliver a continuous current of up to 1A with high efficiency.
3. Wide Input Voltage Range: Operates with input voltages ranging from 4V to 40V, making it suitable for various applications.
4. Efficiency: Provides high efficiency, which reduces heat dissipation and improves overall power management.
5. Fixed Switching Frequency: Operates at a fixed switching frequency of approximately 52 kHz, optimizing performance and size.
6. Integrated Protection Features: Includes features like thermal shutdown, current limiting, and short-circuit protection to enhance reliability and safety.
7. Minimal External Components: Requires a minimal number of external components for operation, simplifying design and reducing cost.
These features make the LM2575T-ADJ ideal for applications in power management, battery chargers, and other DC-DC conversion needs.
1. Adjustable Output Voltage: Capable of delivering an adjustable output voltage, typically ranging from 1.23V to 37V, depending on external components.
2. Output Current: Can deliver a continuous current of up to 1A with high efficiency.
3. Wide Input Voltage Range: Operates with input voltages ranging from 4V to 40V, making it suitable for various applications.
4. Efficiency: Provides high efficiency, which reduces heat dissipation and improves overall power management.
5. Fixed Switching Frequency: Operates at a fixed switching frequency of approximately 52 kHz, optimizing performance and size.
6. Integrated Protection Features: Includes features like thermal shutdown, current limiting, and short-circuit protection to enhance reliability and safety.
7. Minimal External Components: Requires a minimal number of external components for operation, simplifying design and reducing cost.
These features make the LM2575T-ADJ ideal for applications in power management, battery chargers, and other DC-DC conversion needs.
Pinout
The LM2575T-ADJ is an adjustable voltage regulator with a pin count of 5. It is typically provided in a TO-220 package. Here is a brief description of its pin functions:
1. Vin (Input Voltage): This pin receives the input voltage which is to be regulated.
2. Output: This pin provides the regulated output voltage.
3. Ground (GND): This pin is connected to the system ground or negative voltage rail.
4. Feedback (FB): This pin is used to set the output voltage by connecting it to a resistor divider network.
5. ON/OFF (Enable): This pin is used to enable or disable the regulator output.
The LM2575T-ADJ is a step-down (buck) switching regulator, allowing the output voltage to be adjusted through external components. It is typically used for efficiently stepping down voltages in power management applications.
1. Vin (Input Voltage): This pin receives the input voltage which is to be regulated.
2. Output: This pin provides the regulated output voltage.
3. Ground (GND): This pin is connected to the system ground or negative voltage rail.
4. Feedback (FB): This pin is used to set the output voltage by connecting it to a resistor divider network.
5. ON/OFF (Enable): This pin is used to enable or disable the regulator output.
The LM2575T-ADJ is a step-down (buck) switching regulator, allowing the output voltage to be adjusted through external components. It is typically used for efficiently stepping down voltages in power management applications.
Manufacturer
The LM2575T-ADJ is manufactured by Texas Instruments. Texas Instruments (TI) is an American technology company headquartered in Dallas, Texas. It is one of the largest semiconductor companies in the world and is known for designing and manufacturing a wide array of semiconductor products, including integrated circuits and analog semiconductors. Texas Instruments serves various sectors, including automotive, industrial, personal electronics, communications equipment, and enterprise systems. The company has a long history in electronics and is recognized for its contributions to technology development and innovation in semiconductor solutions.
Application
The LM2575T-ADJ is a versatile adjustable voltage regulator suitable for various applications. It is commonly used in power management for adjustable DC-DC conversion, making it ideal for battery-powered devices, automotive electronics, and embedded systems. Its efficiency and compact design allow it to be used in consumer electronics, such as LED drivers and power supplies for microcontrollers. Additionally, the LM2575T-ADJ is suitable for industrial applications, including instrumentation and communication equipment, where stable and adjustable power supply voltages are required. Its capability to provide a stable output over a wide range of input voltages makes it an excellent choice for diverse electronic applications.
Package
The LM2575T-ADJ is a voltage regulator with a TO-220 package type. This package features three leads and is known for its capability to dissipate heat effectively, making it suitable for power applications.
