LM2576T-ADJ

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LM2576T-ADJ

IC REG MULT CONFG ADJ 3A TO220-5

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  • Fr. Teil #LM2576T-ADJ
  • Paket TO-220 (KC)-5
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Spezifikationen

Package Tube,Tube
ProductStatus Obsolete
Function Step-Down
OutputConfiguration Positive or Negative
Topology Buck
OutputType Adjustable
NumberofOutputs 1
Voltage-Input(Min) 7V
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 Through Hole
Package/Case TO-220-5

Übersicht

Description

The LM2576T-ADJ is a voltage regulator from Texas Instruments, designed for efficient step-down (buck) voltage conversion. Part of the popular LM2576 series, it is an adjustable version, allowing output voltage customization from 1.23V to 37V when supplied with a higher input voltage. This device can deliver up to 3A of output current, making it suitable for various applications, including power supply designs, battery chargers, and DC-DC converters.
Key features of the LM2576T-ADJ include high efficiency, typically over 80%, and a wide input voltage range of 4V to 40V. It operates at a fixed frequency of 52 kHz, simplifying the design of external filters to reduce electromagnetic interference (EMI). The regulator also includes built-in features such as thermal shutdown, current limiting, and an ON/OFF control for improved safety and efficiency.
The LM2576T-ADJ is popular for its ease of use, requiring few external components, and is available in a TO-220 package, which provides good thermal performance. This makes it a versatile choice for both hobbyists and professional engineers seeking a reliable power management solution.

Features

The LM2576T-ADJ is a versatile voltage regulator known for its efficiency and ease of use in step-down (buck) converter applications. Key features include:
1. Adjustable Output Voltage: Provides an adjustable output voltage range from 1.23V to 37V, allowing flexibility for various applications.
2. High Efficiency: Offers up to 90% efficiency, which minimizes heat generation and improves energy savings.
3. Output Current: Capable of delivering up to 3A of output current, suitable for many power supply needs.
4. Wide Input Voltage Range: Supports an input voltage range from 4V to 40V, accommodating different power sources.
5. Fixed Switching Frequency: Operates at a fixed frequency of 52 kHz to reduce noise and improve reliability.
6. Thermal Shutdown and Current Limiting: Features built-in protections against overheating and overcurrent, enhancing device safety and longevity.
7. Minimal External Components: Requires few external components, simplifying the design and reducing overall system cost.
8. Versatile Applications: Ideal for use in various applications, including telecommunications, automotive, and industrial power supplies.
These features make the LM2576T-ADJ a popular choice for efficient, reliable, and adjustable voltage regulation solutions.

Package

The LM2576T-ADJ is a voltage regulator from Texas Instruments housed in a TO-220 package. This package type provides efficient heat dissipation, making it suitable for applications requiring efficient power management.

Pinout

The LM2576T-ADJ is a voltage regulator IC from the LM2576 series, designed for step-down (buck) switching voltage regulation. It is an adjustable version, allowing output voltage customization.
The LM2576T-ADJ comes in a TO-220 package and typically has five pins. Here’s a brief description of each pin's function:
1. VIN (Input Voltage): This pin is for the input voltage supply to the regulator.
2. OUTPUT: This pin is the regulated output voltage. It connects to the load and provides the regulated voltage.
3. GND (Ground): This pin is the common ground pin for both input and output, serving as a reference point for the IC.
4. FEEDBACK (FB): This pin is used to set the output voltage. It provides feedback to the internal comparator to adjust the output to the desired level.
5. ON/OFF (Shutdown): This pin is used to enable or disable the regulator. A low voltage on this pin turns the regulator off, reducing power consumption.
These pins work together to provide efficient voltage regulation with minimal external components.

Manufacturer

The LM2576T-ADJ is manufactured by Texas Instruments. Texas Instruments is a global semiconductor company that designs and manufactures a variety of electronic components, including integrated circuits for analog and digital embedded processing applications. The company focuses on innovation and quality to provide solutions across various sectors, such as automotive, industrial, personal electronics, communications equipment, and enterprise systems.

Application

The LM2576T-ADJ is a versatile adjustable voltage regulator used in various applications, including power supply solutions, battery chargers, and DC-DC converters. It is commonly utilized in industrial electronics, automotive systems, and consumer electronics for its efficiency in reducing voltage levels and providing a stable output. Additionally, its ability to handle higher current loads makes it suitable for powering microcontrollers, sensors, and other electronic components in embedded systems.

Equivalent

The LM2576T-ADJ is a versatile adjustable voltage regulator. Equivalent products include:
1. LM2596T-ADJ: Similar adjustable voltage regulator with higher efficiency.
2. MC34063: A flexible DC-DC converter with adjustable output capability.
3. L4970A: A step-down regulator with comparable features.
4. XL4015: A high-current step-down adjustable module.
5. L7805CV: If a fixed output is acceptable, this can be considered for specific voltage needs.
These alternatives offer similar functionality with variations in current rating, efficiency, and package type. Always check specific datasheets for detailed comparisons.

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