LM2674MX-12

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LM2674MX-12

IC REG BUCK 12V 500MA 8SOIC

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規格

Package Tape & Reel (TR),Cut Tape (CT)
Series SIMPLE SWITCHER®
ProductStatus Obsolete
Function Step-Down
OutputConfiguration Positive
Topology Buck
OutputType Fixed
NumberofOutputs 1
Voltage-Input(Min) 6.5V
Voltage-Input(Max) 40V
Voltage-Output(Min/Fixed) 12V
Current-Output 500mA
Frequency-Switching 260kHz
SynchronousRectifier No
OperatingTemperature -40°C ~ 125°C (TJ)
MountingType Surface Mount
Package/Case 8-SOIC (0.154, 3.90mm Width)

概述

Description

The LM2674MX-12 is a step-down voltage regulator from Texas Instruments, designed to provide efficient power conversion for electronic devices. It is part of the SIMPLE SWITCHER® series, known for its ease of use and reliability. The "-12" in its model number indicates that it outputs a fixed voltage of 12 volts.
Key features include a wide input voltage range (typically 8V to 40V), a maximum output current of 500 mA, and high efficiency up to 96%. The device operates at a switching frequency of 260 kHz, which allows for the use of smaller external components, minimizing the overall circuit footprint.
The LM2674MX-12 includes a number of protections such as current limiting, thermal shutdown, and short circuit protection, enhancing its robustness in various applications. It is suitable for use in automotive, industrial, and consumer electronic applications where a stable 12V output is required.
The regulator is available in a surface-mount SOIC package, making it easy to incorporate into printed circuit board designs. Its SIMPLE SWITCHER® architecture ensures straightforward implementation with minimal external components and provides a reliable power supply solution.

Features

The LM2674MX-12 is a step-down voltage regulator designed for efficiency and reliability in power management applications. Here are its key features:
1. Output Voltage: Provides a fixed output voltage of 12V.
2. Input Voltage Range: Operates with an input voltage range from 8V to 40V.
3. Output Current: Capable of delivering up to 500mA of output current.
4. Efficiency: High efficiency up to 96%, depending on the input and output voltage conditions.
5. Switching Frequency: Fixed at 260 kHz, allowing for smaller external components and compact design.
6. Thermal Shutdown and Current Limiting: Built-in protection features to prevent damage under fault conditions.
7. Low Standby Current: Includes a low-power shutdown mode to minimize power consumption when the device is not active.
8. Package: Comes in a thermally-enhanced 8-pin SOIC package, suitable for space-constrained applications.
9. Applications: Ideal for use in distributed power systems, battery-powered devices, and point-of-load regulation.
These features make the LM2674MX-12 a popular choice for designers seeking a robust and efficient DC-DC converter solution.

Package

The LM2674MX-12 is a step-down voltage regulator from Texas Instruments and is typically available in an SOIC (Small Outline Integrated Circuit) package. Specifically, the "MX" designation indicates an 8-lead SOIC package.

Pinout

The LM2674MX-12 is a step-down voltage regulator from Texas Instruments. It is part of the SIMPLE SWITCHER® series and is designed to provide a fixed output voltage of 12V. The device typically comes in an 8-pin SOIC (Small Outline Integrated Circuit) package.
Here is a brief overview of its pin functions:
1. Pin 1 (BOOST): This pin is connected to an external capacitor and diode to boost the gate drive of the internal MOSFET switch.
2. Pin 2 (VIN): Input voltage supply pin where the input voltage is applied.
3. Pin 3 (SW): Switch output; this is the switching node where the inductor is connected.
4. Pin 4 (GND): Ground pin.
5. Pin 5 (FB): Feedback pin; used to set the output voltage.
6. Pin 6 (ON/OFF): Enable pin; a high level turns on the device, and a low level turns it off.
7. Pin 7 (NC): Not connected, but may be used for mechanical support.
8. Pin 8 (VOUT): Output voltage pin where the regulated voltage is provided.
The LM2674MX-12 is suitable for various applications that require efficient voltage conversion and regulation.

Manufacturer

The LM2674MX-12 is manufactured by Texas Instruments (TI). Texas Instruments is a global technology company that designs and produces semiconductors and various integrated circuits, which are used in electronics and electronic devices. They provide a wide range of products, including analog chips and embedded processors, serving industries like automotive, industrial, personal electronics, and communications. Founded in 1930 and headquartered in Dallas, Texas, TI is known for its innovation and significant contributions to the electronics sector, making it one of the major players in the semiconductor industry.

Application

The LM2674MX-12 is a step-down voltage regulator primarily used in applications requiring efficient power conversion. Its typical uses include powering microcontrollers, sensors, and communication devices in consumer electronics, industrial systems, and automotive applications. It's suitable for distributed power systems, battery-powered devices, and any application needing stable 12V output from higher voltage inputs.

Equivalent

The LM2674MX-12 is a 12V output, step-down voltage regulator. Equivalent products include:
1. LM2596S-12: A 12V, 3A step-down voltage regulator.
2. TPS54331: A 28V, 3A step-down voltage regulator.
3. L78S12: A 12V, 2A linear voltage regulator.
4. MC34167: A 12V, 5A step-down switching regulator.
These alternatives vary in current output and features, so ensure compatibility with your circuit requirements.

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