LM2574MX-5.0

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LM2574MX-5.0

IC REG BUCK 5V 500MA 14SOIC

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Spécifications

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) 40V
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)

Vue d'ensemble

Description

The LM2574MX-5.0 is a monolithic integrated circuit designed for step-down (buck) voltage regulation, produced by Texas Instruments. It is part of the LM2574 series, which is known for its efficiency and reliability in converting higher DC voltage to a lower DC voltage with minimal energy loss. The "5.0" in its designation indicates a fixed output voltage of 5.0 volts.
This regulator can deliver an output current of up to 0.5 amperes and operates over a wide input voltage range. With a built-in on-off switch, it provides good switching frequency stability, typically at 52 kHz, which helps in minimizing electromagnetic interference (EMI).
The LM2574MX-5.0 features internal frequency compensation, a fixed-frequency oscillator, and an internal feedback path, simplifying the design process. It also includes safeguards like thermal shutdown and current limit protection to enhance reliability. The component comes in a surface-mount TO-252 package, allowing for compact and efficient PCB layouts.
Overall, the LM2574MX-5.0 is suitable for various applications, including power supplies in consumer electronics, automotive, and industrial applications, where efficient and compact voltage regulation is needed.

Features

The LM2574MX-5.0 is a monolithic integrated circuit specifically designed for step-down (buck) voltage regulation. Key features include:
1. Fixed Output Voltage: Provides a regulated 5V output.
2. Wide Input Voltage Range: Operates between 4V to 40V, accommodating various power sources.
3. Output Current: Capable of delivering up to 0.5A of continuous load current.
4. High Efficiency: Typically up to 88%, reducing heat generation and improving performance.
5. Internal Frequency Compensation: Simplifies design and reduces external component count.
6. On-chip Switching: Includes a 52 kHz internal oscillator for efficient power conversion.
7. Low Standby Current: Features low standby current, enhancing energy efficiency.
8. Thermal Shutdown and Current Limiting: Provides protection mechanisms to prevent damage under fault conditions.
9. Ease of Use: Requires minimal external components, simplifying the design process.
10. Package: Available in SOIC-8 surface-mount package, facilitating compact designs.
These features make the LM2574MX-5.0 suitable for a variety of applications requiring efficient and reliable voltage conversion.

Package

The LM2574MX-5.0 is a step-down (buck) voltage regulator in a surface-mount SOIC-8 package. It is designed for applications requiring a constant 5V output from a higher input voltage, typically in power management circuits. Its compact SOIC-8 package makes it suitable for space-constrained applications.

Pinout

The LM2574MX-5.0 is a step-down voltage regulator designed to provide a fixed 5.0V output. It is part of the LM2574 series, known for its efficiency and ease of use in various applications.
This device typically comes in an 8-pin surface-mount package (SOIC-8). The pin configuration and functions are as follows:
1. Pin 1 (VIN): Input voltage supply.
2. Pin 2 (Output): Provides the regulated output voltage.
3. Pin 3 (Feedback): Used to set the output voltage; connected internally to a voltage reference.
4. Pin 4 (ON/OFF): Controls the output state; enables or disables the regulator.
5. Pin 5-8 (Ground): These pins are connected to the ground.
The LM2574MX-5.0 is designed for easy implementation, requiring minimal external components and capable of delivering up to 0.5A of output current. It's suitable for applications needing a reliable 5V power source from a higher voltage supply.

Manufacturer

The LM2574MX-5.0 is manufactured by Texas Instruments, an American technology company. Texas Instruments (TI) designs and produces semiconductors and various integrated circuits, which are used in electronic devices globally. TI is well-known for its role in the development of analog circuits, digital signal processing, and embedded processing. The company serves a wide range of industries, including automotive, industrial, consumer electronics, and communications. With a strong focus on innovation, Texas Instruments is a leader in the electronics sector, continuously advancing technology in both hardware and software solutions.

Application

The LM2574MX-5.0 is a step-down (buck) voltage regulator used in applications requiring efficient voltage conversion and regulation. Its primary application areas include power supply modules for microcontrollers, battery-powered devices, industrial automation systems, communication equipment, and distributed power systems. It is ideal for applications needing a stable 5V output from higher voltage sources, offering reliable performance in compact spaces with minimal external components.

Equivalent

The LM2574MX-5.0 is a step-down (buck) voltage regulator. Equivalent products include the MC34063, LM2596, and LM2675, which are also popular buck converters with similar output voltage and current ratings. For direct pin-to-pin compatibility, check the National Semiconductor or TI's LM series for closer matches. Always verify datasheets for compatibility in terms of pin configuration, input voltage range, and output current before substitution.

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