LM2574HVMX-5.0

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LM2574HVMX-5.0

IC REG BUCK 5V 500MA 14SOIC

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Spezifikationen

Package Tape & Reel (TR),Cut Tape (CT),Bulk
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 500mA
Frequency-Switching 52kHz
SynchronousRectifier No
OperatingTemperature -40°C ~ 125°C (TJ)
MountingType Surface Mount
Package/Case 14-SOIC (0.295, 7.50mm Width)

Übersicht

Description

The LM2574HVMX-5.0 is a step-down voltage regulator designed to efficiently convert higher input voltages to a stable 5-volt output, suitable for various electronic applications. Manufactured by Texas Instruments, this device is part of the LM2574 series known for its ease of use and reliability.
Key features include:
1. Wide Input Voltage Range: The "HV" in its name indicates "High Voltage," meaning it can handle input voltages up to 60 volts.
2. Fixed 5V Output: The "5.0" specifies a fixed output voltage of 5 volts.
3. Efficiency: Designed for high efficiency, minimizing heat and power loss.
4. Output Current: Capable of delivering up to 500 mA of output current.
5. Protection Features: Includes over-temperature and over-current protection, enhancing reliability.
6. Package Options: Available in a surface-mount package (TO-263 or SOP), facilitating easy integration into circuit boards.
Applications for the LM2574HVMX-5.0 include power supply units in consumer electronics, automotive, and industrial systems where a stable 5V power source is required from a higher voltage input. Its robust design and protective features make it a preferred choice for reliable power management solutions.

Features

The LM2574HVMX-5.0 is a fixed-output voltage regulator with a 5V output, designed for step-down (buck) applications. Key features include:
1. Wide Input Voltage Range: Supports input voltages from 4.75V to 60V, making it versatile for various applications.
2. Output Current: Capable of delivering up to 500 mA of output current.
3. Efficiency: Designed for high efficiency, typically over 80%, reducing power loss and heat generation.
4. Switching Frequency: Operates at a fixed frequency of 52 kHz, which allows for a smaller size of external components.
5. Thermal and Short-Circuit Protection: Includes built-in protection features to prevent damage under fault conditions.
6. ON/OFF Control: Equipped with a shutdown function to reduce power consumption during idle periods.
7. Package Type: Available in a surface-mount TO-252 package for easy integration into compact designs.
8. Low Dropout Voltage: Ensures effective regulation with minimal input-output voltage differential.
These features make the LM2574HVMX-5.0 suitable for power management in a variety of consumer, industrial, and automotive applications.

Package

The LM2574HVMX-5.0 is a Step-Down Voltage Regulator in a surface-mount package type, specifically a 14-SOIC (Small Outline Integrated Circuit) package. This package is designed for efficient voltage regulation and is suitable for applications requiring compact size and reliable performance.

Pinout

The LM2574HVMX-5.0 is a fixed-output voltage, step-down (buck) voltage regulator with a 5V output. It features a 5-pin configuration. The key functions of the pins are as follows:
1. VIN (Pin 1): Input voltage pin. It accepts a wide range of input voltages and provides power to the internal circuitry and the output.
2. SW (Pin 2): Switch output pin. This is the output of the internal switch, which connects to the external inductor, facilitating the step-down voltage conversion.
3. GND (Pin 3): Ground pin. It serves as the reference point for all voltages in the circuit.
4. FB (Pin 4): Feedback pin. This pin is used to regulate the output voltage by comparing it to an internal reference.
5. ON/OFF (Pin 5): Enable/disable control pin. It allows the user to turn the regulator on or off, adding flexibility in power management.
These pins work in unison to efficiently convert a higher input voltage to a stable 5V output, suitable for various applications.

Manufacturer

The LM2574HVMX-5.0 is manufactured by Texas Instruments. Texas Instruments (TI) is an American technology company that designs and manufactures semiconductors and various integrated circuits. It is one of the largest semiconductor companies in the world and is known for its focus on developing analog chips and embedded processors. TI's products are used in a wide range of applications, including consumer electronics, automotive, industrial, and communications equipment. The company is recognized for its innovation in electronics and commitment to advancing technology.

Application

The LM2574HVMX-5.0 is a voltage regulator designed for step-down (buck) applications. It is used in areas requiring efficient power conversion, such as powering microcontrollers, industrial automation systems, and battery-operated devices. Its capability to handle high input voltages makes it suitable for automotive electronics, telecommunications equipment, and distributed power systems. Additionally, it is used in consumer electronics for stable, regulated power supply needs.

Equivalent

The LM2574HVMX-5.0 is a step-down (buck) voltage regulator. Equivalent products might include the MC34063, LM2594, or L4971, which are also step-down voltage regulators with similar functionalities. Ensure the electrical characteristics, such as input voltage range and output current, match your requirements when selecting an equivalent. Always refer to the datasheets for compatibility.

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