LM2576HVT-5.0

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LM2576HVT-5.0

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IC REG BUCK 5V 3A TO220-5

  • HerstellerTexas Instruments

  • Herstellerteil #LM2576HVT-5.0

  • Paket TO-220-5

  • Auf Lager6024

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Spezifikationen

Attribut Wert
Package / Case Tube
Series SIMPLE SWITCHER®
Part Status Not For New Designs
Function Step-Down
Output Configuration Positive
Topology Buck
Output Type Fixed
Number of Outputs 1
Voltage - Input (Min) 4V
Voltage - Input (Max) 60V
Voltage - Output (Min/Fixed) 5V
Current - Output 3A
Frequency - Switching 52kHz
Synchronous Rectifier No
Operating Temperature -40°C ~ 125°C (TJ)
Mounting Type Through Hole

Übersicht

Description

The LM2576HVT-5.0 is a high-efficiency, step-down voltage regulator designed by Texas Instruments. It integrates all necessary circuitry to provide a fixed 5.0V output with a wide input voltage range of up to 60V. Operating at a 52 kHz fixed frequency, the device offers a simple solution for efficient power management in various applications, including industrial and automotive systems.
Key features include an output current capability of up to 3A, thermal shutdown and current limit protection, and low power standby mode. The LM2576HVT-5.0 offers low dropout voltage and high efficiency, making it suitable for battery-powered devices. It requires minimal external components, simplifying the design process and reducing the overall component count.
The device is noted for its reliability and is available in standard TO-220 and TO-263 packages, making it versatile for various design requirements. Its robust performance in harsh environments makes it a popular choice for applications needing dependable voltage regulation.

Equivalent

The LM2576HVT-5.0 is a step-down voltage regulator. Equivalent products include:
1. LM2596-5.0 - A similar step-down voltage regulator with 3A output.
2. L4970A - Offers adjustable output and similar performance.
3. MC34063 - A more versatile DC-DC converter for lower current applications.
4. L78S05CV - A linear regulator for applications with lower efficiency requirements.
5. LM7805 - Another linear regulator, suitable for simpler applications.
Ensure compatibility in terms of voltage, current, and thermal performance before substituting.

Features

The LM2576HVT-5.0 is a step-down voltage regulator designed for simple and efficient power management. Key features include:
1. Output Voltage: Fixed output of 5.0V.
2. Input Voltage Range: Operates with an input voltage range typically up to 60V.
3. Output Current: Capable of delivering up to 3A continuous output current.
4. Efficiency: High efficiency, usually around 77% to 80%, reducing heat generation.
5. Internal Switch: Includes a 3.3A high-efficiency switch.
6. Frequency: Fixed switching frequency of 52 kHz, reducing external component size.
7. Thermal Shutdown: Built-in thermal protection to prevent overheating.
8. Current Limit: Features a current limit for circuit protection.
9. Low Standby Current: Low quiescent current draw when not switching.
10. Wide Temperature Range: Designed to operate in a wide range of temperatures, often from -40°C to +125°C.
These features make the LM2576HVT-5.0 suitable for various applications requiring reliable and efficient voltage regulation.

Pinout

The LM2576HVT-5.0 is a fixed-output voltage regulator with a 5V output and is part of the LM2576 series of simple switcher power converters. It comes in a TO-220 package and typically has a 5-pin configuration. Here is a brief overview of its pin functions:
1. VIN: This is the input voltage pin where the unregulated DC voltage is supplied.
2. Output (VOUT): This pin provides the regulated 5V output.
3. Ground (GND): This is the ground pin and serves as the reference point for the input and output voltages.
4. Feedback (FB): In the fixed version, the feedback pin is internally connected to maintain the output voltage at the specified level. In adjustable versions, it's used to sense the output voltage for regulation.
5. ON/OFF: This pin is used to enable or disable the regulator. When connected to the ground, the regulator is enabled, and when connected to a higher voltage, it is disabled.
The LM2576 series offers ease of use with features like thermal shutdown, current limiting, and efficient switching, making them suitable for various power supply applications.

Manufacturer

The LM2576HVT-5.0 is manufactured by Texas Instruments, a global semiconductor design and manufacturing company. Texas Instruments, commonly referred to as TI, is known for its wide range of products including analog and embedded processing chips. The company plays a significant role in the electronics industry, providing essential components for various applications, such as industrial, automotive, personal electronics, and communications equipment. TI's extensive portfolio and innovation make it a leader in the semiconductor space.

Application

The LM2576HVT-5.0 is a switching voltage regulator used in various applications that require efficient power management. Key areas include:
1. Power Supply Solutions: Utilized in creating step-down (buck) converters, enabling efficient conversion from a higher DC input to a stable 5V output.
2. Consumer Electronics: Used in devices requiring stable power, such as routers and gaming consoles.
3. Industrial Applications: Applied in factory automation systems and machinery requiring robust voltage regulation.
4. Automotive Electronics: Employed in vehicle systems where consistent voltage is critical despite fluctuating input.
5. Embedded Systems: Powers microcontrollers and peripherals in embedded applications, ensuring reliable operation.

Package

The LM2576HVT-5.0 is typically available in a TO-220 package. This package features a three-pin configuration, designed for through-hole mounting, with a tab that can be used for heat dissipation. The TO-220 package is commonly used for voltage regulators and power management ICs like the LM2576 series.

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