LM2597MX-5.0

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LM2597MX-5.0

IC REG BUCK 5V 500MA 8SOIC

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規格

Series SIMPLE SWITCHER®
Part Status Obsolete
Base Product Number LM2597
Function Step-Down
Output Configuration Positive
Topology Buck
Output Type Fixed
Number of Outputs 1
Voltage - Input (Min) 4.5V
Voltage - Input (Max) 40V
Voltage - Output (Min/Fixed) 5V
Current - Output 500mA
Frequency - Switching 150kHz
Synchronous Rectifier No
Operating Temperature -40°C ~ 125°C (TJ)
Mounting Type Surface Mount
Package 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SOIC
Packaging Tape & Reel (TR)

概述

Description

The LM2597MX-5.0 is a voltage regulator component belonging to the LM2597 series, designed for efficient step-down (buck) voltage conversion. It provides a fixed 5.0V output voltage, suitable for applications requiring a stable power supply from a higher voltage input. This regulator is capable of delivering up to 1A of continuous output current, making it ideal for various electronic devices and systems.
Key features include a high efficiency, typically around 90%, due to its switching regulator design, which minimizes heat generation. It operates over a wide input voltage range, providing flexibility for different power sources. The LM2597MX-5.0 also incorporates features like thermal shutdown, current limiting, and short circuit protection to enhance reliability and safety.
The device is housed in a surface-mount TO-263 or SOIC package, facilitating integration into compact circuit designs. It is commonly used in applications such as embedded systems, consumer electronics, and industrial equipment where a regulated 5.0V output is needed. Overall, the LM2597MX-5.0 offers a reliable and efficient solution for voltage regulation in various electronic applications.

Features

The LM2597MX-5.0 is a step-down voltage regulator from Texas Instruments. It is part of the LM2597 series, known for efficient power conversion. Key features include:
1. Output Voltage: It provides a fixed 5.0V output, making it suitable for various applications requiring this specific voltage level.

2. Input Voltage Range: Operates within a wide input voltage range, typically from 7V to 40V.
3. Output Current: Delivers up to 1A of output current, sufficient for powering moderate loads.
4. Switching Frequency: Operates at a fixed frequency of 150 kHz, which helps in reducing the size of external components and improves efficiency.
5. Efficiency: Offers high efficiency, typically around 88%, helping reduce power loss and heat generation.
6. Thermal Protection: Includes thermal shutdown to prevent damage from overheating.
7. Current Limiting: Has an internal current limiting feature for enhanced protection against overcurrent conditions.
8. Packaging: Comes in a TO-263 surface-mount package, which is compact and easy to incorporate into PCB designs.
These features make the LM2597MX-5.0 a reliable choice for applications requiring stable 5V outputs from higher input voltages, such as in power supplies for microcontrollers and other digital circuits.

Package

The LM2597MX-5.0 is a voltage regulator packaged in a TO-263 surface-mount package, also known as D2PAK. This package type is designed for high power dissipation and is commonly used for power management ICs.

Pinout

The LM2597MX-5.0 is a step-down voltage regulator with a fixed output voltage of 5.0 volts. It is part of the LM2597 series by Texas Instruments. This particular model comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. Here is a brief overview of its pin functions:
1. Vin (Pin 1): Input voltage supply.
2. Ground (Pin 2): Ground reference for the circuit.
3. Vout (Pin 3): Output voltage pin, provides the regulated 5V output.
4. Feedback (Pin 4): Feedback pin for monitoring the output voltage (not used in the fixed version but connected internally).
5. ON/OFF (Pin 5): Allows the device to be shut down or enabled.
6. Compensation (Pin 6): Connects to compensation network to stabilize the circuit.
7. Bootstrap (Pin 7): Used for driving the high-side switch.
8. NC (Pin 8): No connection, used for mechanical support in the package.
These pins work together to regulate a higher input voltage down to a stable 5V output suitable for various electronics applications.

Manufacturer

The LM2597MX-5.0 is manufactured by Texas Instruments. Texas Instruments is a global semiconductor company known for designing and manufacturing a wide range of analog and embedded processing chips. They service various industries, including automotive, personal electronics, industrial, and communications equipment. The company focuses on creating products that help customers efficiently manage power in their devices, process and interpret data, and connect to their networks.

Application

The LM2597MX-5.0 is a step-down voltage regulator commonly used in applications requiring efficient power conversion from higher to lower voltage levels. Key application areas include:
1. Power supply solutions for microcontrollers and digital circuits.
2. Consumer electronics like set-top boxes and gaming consoles.
3. Automotive electronics for dashboard instrumentation.
4. Industrial automation systems.
5. Communication equipment and networking devices.
Its ability to deliver a stable 5V output makes it versatile for various electronic devices and systems.

Equivalent

The LM2597MX-5.0 is a step-down voltage regulator. Equivalent products include the LM2575T-5.0, L4970A, MC34063A, and the LM7805 if a linear regulator can be used. Ensure to check the specifications like input voltage range, output current, and efficiency to match your requirements.

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