LM2674MX-5.0

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LM2674MX-5.0

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SWITCHING REGULATOR, VOLTAGE-MOD

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Description

The LM2674MX-5.0 is a step-down voltage regulator designed by Texas Instruments. It is part of the Simple Switcher® series, which is known for its ease of use and reliability. The "5.0" in its name indicates that it outputs a fixed 5.0V voltage. This regulator is capable of delivering up to 500 mA of current, making it suitable for a variety of low to medium power applications.
Key features include a wide input voltage range from 8V to 40V, high efficiency due to its switching topology, and a low dropout voltage. It also incorporates a fixed switching frequency of 260 kHz, which allows for smaller external components and a more compact design. The LM2674MX-5.0 comes in a SOIC-8 package, making it easy to handle and assemble on PCBs. Additional features include thermal shutdown and current limit protection, which enhance the reliability and safety of the device in adverse conditions. Overall, the LM2674MX-5.0 is a robust choice for users needing a compact and efficient power conversion solution.

Equivalent

The LM2674MX-5.0 is a step-down voltage regulator from Texas Instruments. Equivalent products from other manufacturers include the MC34063A from ON Semiconductor, the LT1074 from Analog Devices, the MIC4576 from Microchip Technology, and the MP1584 from Monolithic Power Systems. These alternatives offer similar functionality but may have differences in specifications such as input voltage range, output current, and efficiency, so it's essential to review their datasheets to ensure compatibility with your application.

Features

The LM2674MX-5.0 is a step-down voltage regulator designed for efficient power management. Key features include:
1. Output Voltage: Fixed output of 5.0V with high precision.
2. Input Voltage Range: Wide input range from 8V to 40V allows for versatility in different applications.
3. Output Current: Capable of delivering up to 500 mA continuous output current.
4. Efficiency: High efficiency up to 90%, reducing heat and power loss.
5. Switching Frequency: Operates at a fixed frequency of 260 kHz, allowing for smaller external components.
6. Feedback Control: Includes internal feedback for stable voltage regulation.
7. Thermal Protection: Built-in thermal shutdown prevents overheating.
8. Current Limiting: Integrated current limitation safeguards against overload conditions.
9. Package: Offered in a surface-mount TO-263 package for space-saving designs.
10. Applications: Suitable for use in battery-powered applications, distributed power systems, and linear regulator replacements.
Overall, the LM2674MX-5.0 is valued for its compact size, reliability, and efficient performance in various power management tasks.

Pinout

The LM2674MX-5.0 is a step-down voltage regulator from Texas Instruments, designed to provide a fixed 5.0V output from a higher input voltage. It typically comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. Here are the pin functions:
1. VIN (Pin 1): Input voltage supply.
2. SW (Pin 2): Switch node, connected to the inductor.
3. GND (Pin 3): Ground reference for the IC.
4. FB (Pin 4): Feedback input, connected to the output voltage through a resistor divider (only used in adjustable versions, not fixed 5.0V).
5. ON/OFF (Pin 5): Enable/shutdown pin. A high level turns the device on, and a low level turns it off.
6. BOOT (Pin 6): Bootstrap capacitor connection for driving the high-side power switch.
7. NC (Pin 7): No Connect.
8. NC (Pin 8): No Connect.
This setup allows the LM2674MX-5.0 to efficiently convert input voltages down to 5.0V with a stable output, making it suitable for various power management applications.

Manufacturer

The LM2674MX-5.0 is manufactured by Texas Instruments Incorporated. Texas Instruments (TI) is a global technology company headquartered in Dallas, Texas. It designs and manufactures semiconductors and various integrated circuits, which are used in a wide range of electronic devices and systems. TI is well-known for its analog and embedded processing products, and it serves industries including automotive, industrial, consumer electronics, and communications. The company focuses on developing innovative solutions to enable advancements in areas such as power management, sensing, and signal processing.

Application

The LM2674MX-5.0 is a step-down voltage regulator used in various applications requiring efficient power conversion. Its primary applications include:
1. DC-DC Voltage Regulation: Ideal for converting a higher DC input voltage to a stable 5V output for digital circuits.
2. Embedded Systems: Provides reliable power for microcontrollers and processors.
3. Industrial Equipment: Used in systems where stable voltage regulation is necessary.
4. Consumer Electronics: Powers components in gadgets such as portable devices.
5. Communication Equipment: Supports power supply needs in telecom systems.
6. Automotive Electronics: Suitable for in-car electronic systems due to its efficiency and compact size.
These applications benefit from its efficiency, reliability, and compact design.

Package

The LM2674MX-5.0 is a step-down voltage regulator with a fixed output voltage of 5.0V. It is typically packaged in an SOIC-8 (Small Outline Integrated Circuit) package, which is a surface-mount package designed for space-efficient applications.

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