LM2576HVR-12

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LM2576HVR-12

+BOM

IC REG BUCK 12V 3A TO263-5L

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사양

속성 가치
Series LM2576HV
PartStatus Active
Function Step-Down
OutputConfiguration Positive
Topology Buck
OutputType Fixed
NumberofOutputs 1
Voltage-Input(Max) 60V
Voltage-Output(Min/Fixed) 12V
Current-Output 3A
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
SupplierDevicePackage TO-263-5L

개요

Description

The LM2576HVR-12 is a high-efficiency, step-down (buck) voltage regulator designed to provide a fixed output voltage of 12V. It belongs to the LM2576 series, which is known for its versatility and reliability in power management applications. Featuring a wide input voltage range and a capable current output of up to 3A, the LM2576HVR-12 is suitable for a variety of applications, including power supplies for industrial and consumer electronics.
This regulator is equipped with features such as thermal shutdown, current limit protection, and a high-efficiency operation that minimizes heat generation and maximizes device performance. With a simple design requiring minimal external components, it is easy to use and integrate into existing circuits. Additionally, the LM2576HVR-12 has a high switching frequency, which allows for smaller inductor and capacitor sizes, contributing to more compact power supply designs. Its robust design and reliable performance make it a popular choice for developers seeking efficient voltage regulation solutions.

Equivalent

The LM2576HVR-12 is a step-down voltage regulator. Equivalent products include:
1. LM2596-12 - Another popular step-down regulator with a similar output voltage.
2. L4978D - Offers similar specifications for DC-DC conversion.
3. MIC4576-12 - A similar switching regulator with a 12V output.
4. MC34063 - Can be configured for similar applications, though it may require more external components.
It's important to verify electrical specifications and pin configurations to ensure compatibility.

Features

The LM2576HVR-12 is a high-efficiency, step-down voltage regulator from Texas Instruments. It offers the following key features:
1. Output Voltage: Fixed output voltage of 12V.
2. Input Voltage Range: Operates efficiently with an input voltage range between 7V and 60V.
3. Output Current: Capable of delivering up to 3A of continuous load current.
4. Efficiency: High efficiency, typically above 80%, reducing heat generation and improving performance.
5. Switching Frequency: Fixed internal frequency of 52 kHz, simplifying the design of the external components.
6. Thermal Shutdown and Current Limiting: Protection features included to prevent damage from overheating and overcurrent conditions.
7. Output Voltage Tolerance: Ensures output voltage precision within ±4% over load, line, and temperature variations.
8. Simple Design: Requires minimal external components, making it easy to design and implement.
9. Versatility: Suitable for a wide range of applications, including power supply designs for industrial, automotive, and consumer electronics.
These features make the LM2576HVR-12 a reliable choice for various power management solutions, offering robust performance in demanding environments.

Pinout

The LM2576HVR-12 is a step-down voltage regulator from the LM2576 series. It features a fixed 12V output and is designed to provide a simple and efficient solution for buck converter applications. The device comes in a TO-220, TO-263, or TO-3 package, typically featuring a 5-pin configuration. The functions of these pins are:
1. VIN: This is the input voltage pin where the unregulated input voltage is applied.
2. Output: This pin provides the regulated output voltage (12V for this model).
3. Ground: This is the common ground pin for the power supply and the load.
4. Feedback (FB): This pin is used to connect the output voltage to the internal feedback loop, ensuring regulated output.
5. ON/OFF: This pin is used for enabling or disabling the regulator.
The device is capable of delivering up to 3A of output current and is widely used in applications requiring high efficiency and low component count.

Manufacturer

The LM2576HVR-12 is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and manufactures a wide variety of integrated circuits and analog devices. They serve a broad range of industries, including automotive, industrial, personal electronics, communications equipment, and enterprise systems. TI is known for its innovation in technology and production, focusing on creating products that support the evolving needs of electronic systems and devices.

Application

The LM2576HVR-12 is a voltage regulator designed for efficient step-down (buck) conversion. It is commonly used in applications such as power supply solutions for battery-operated devices, industrial equipment, and automotive electronics. Its ability to maintain a stable output voltage makes it suitable for powering microcontrollers and analog circuits. Additionally, it's used in distributed power systems, pre-regulation for linear regulators, and in consumer electronics for efficient voltage conversion with minimal heat generation. Its robustness and reliability make it ideal for applications requiring consistent performance under varying input voltage and load conditions.

Package

The LM2576HVR-12 is typically available in a TO-263 package, which is a through-hole type with a surface-mount option. This package is used for power management ICs, providing efficient thermal performance and ease of mounting for switching voltage regulators.

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