LM2576HVT-5.0

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LM2576HVT-5.0

IC REG BUCK 5V 3A TO220-5

  • Fabricante
  • Mfr. Parte #LM2576HVT-5.0
  • Paquete TO-220 (KC)-5
  • Hoja de datos
  • En stock3566

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Especificaciones

Package Tube
Series SIMPLE SWITCHER®
ProductStatus Not For New Designs
Function Step-Down
OutputConfiguration Positive
Topology Buck
OutputType Fixed
NumberofOutputs 1
Voltage-Input(Min) 4V
Voltage-Input(Max) 60V
Voltage-Output(Min/Fixed) 5V
Current-Output 3A
Frequency-Switching 52kHz
SynchronousRectifier No
OperatingTemperature -40°C ~ 125°C (TJ)
MountingType Through Hole
Package/Case TO-220-5

Descripción general

Description

The LM2576HVT-5.0 is a high-efficiency, step-down voltage regulator designed by Texas Instruments. It provides a fixed 5.0V output voltage, capable of delivering up to 3A of load current. This device is well-suited for applications requiring a simple and efficient voltage conversion from a higher input voltage to a stable 5V output. The "HVT" designation indicates its high-voltage tolerance, allowing it to handle input voltages up to 60V.
Key features include an internal switch, reducing the need for external components, and a switching frequency of 52 kHz, which helps minimize the size of external components. It also incorporates features like thermal shutdown, current limiting, and short-circuit protection to enhance reliability. The LM2576HVT-5.0 is commonly used in power supplies for embedded systems, industrial applications, and automotive electronics due to its robust performance and ease of implementation. Its TO-220 packaging facilitates easy mounting and heat dissipation. Overall, it offers a balance of performance, simplicity, and protective features, making it an excellent choice for various power regulation tasks.

Features

The LM2576HVT-5.0 is a step-down voltage regulator known for its efficiency and reliability in power management applications. Key features include:
1. Output Voltage: Fixed output voltage of 5.0V.
2. Input Voltage Range: Wide input voltage range up to 60V, making it versatile for various applications.
3. Output Current: Capable of providing up to 3A of output current.
4. Efficiency: High efficiency over a wide current range, typically around 77% to 88%, depending on input voltage and load conditions.
5. Operating Frequency: Fixed switching frequency of 52 kHz, which simplifies filtering and reduces noise.
6. Thermal Shutdown: Built-in thermal shutdown protection prevents damage from overheating.
7. Current Limiting: Features current limiting for protection against overcurrent conditions.
8. Low Quiescent Current: Minimizes power consumption during no-load conditions.
9. Simple Design: Requires minimal external components, reducing overall system cost and complexity.
10. TO-220 Package: Available in a TO-220 package for easy mounting and thermal management.
These features make the LM2576HVT-5.0 suitable for a range of applications, including power supplies for industrial and consumer electronics.

Package

The LM2576HVT-5.0 is typically available in a TO-220 package. This package type is known for its capability to handle higher power levels and is commonly used for voltage regulators.

Pinout

The LM2576HVT-5.0 is a step-down voltage regulator from the LM2576 series, specifically designed to provide a fixed 5.0V output. It comes in a TO-220 package and has 5 pins. Here are the pin functions:
1. Pin 1 (Input): This is the input pin where the unregulated DC voltage is applied. It can accept a voltage range typically up to 60V for the HVT (High Voltage) version.
2. Pin 2 (Output): This pin provides the regulated 5.0V output. It connects to the load that requires the stabilized output voltage.
3. Pin 3 (Ground): The ground pin is the common ground reference for the input and output voltages.
4. Pin 4 (Feedback): This pin is used for feedback and regulation. In fixed output versions like the 5.0V, it is internally set to maintain the desired output and typically connected to the output.
5. Pin 5 (ON/OFF): This is the shutdown pin. It allows the device to be turned on and off with an external signal. Pulling this pin low enables the regulator, while a high level shuts it down.
The LM2576HVT-5.0 efficiently converts higher input voltages to a stable 5.0V output with a current capacity of up to 3A.

Manufacturer

The LM2576HVT-5.0 is manufactured by Texas Instruments, which is a global semiconductor company. Texas Instruments designs and manufactures a wide range of integrated circuits and other semiconductor products used in various electronic devices and systems across industries. The company focuses on developing analog and embedded processing components, serving sectors such as automotive, industrial, personal electronics, communications equipment, and enterprise systems.

Application

The LM2576HVT-5.0 is a step-down voltage regulator used in various applications. Key areas include power supply solutions for industrial equipment, battery-powered devices, automotive systems, telecommunications, and consumer electronics. It efficiently converts higher input voltages to a stable 5V output, making it suitable for powering microcontrollers, sensors, and other 5V logic devices. Its robust performance in regulating output despite variations in input voltage or load current also makes it ideal for voltage regulation in distributed power systems.

Equivalent

The LM2576HVT-5.0 is a high-voltage version of the LM2576, a step-down voltage regulator. Equivalent products include the LM2576T-5.0 by Texas Instruments, the L4970A by STMicroelectronics, and the MC34063 by ON Semiconductor with appropriate configurations. These components offer similar functionalities with varying input voltage ranges and current capabilities. When selecting an equivalent, ensure compatibility with your application's specifications.

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