LM2674M-ADJ

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LM2674M-ADJ

IC REG BUCK ADJ 500MA 8SOIC

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規格

Series LM2674
Part Status Active
Function Step-Down
Output Configuration Positive
Topology Buck
Output Type Adjustable
Number of Outputs 1
Voltage - Input (Min) 7V
Voltage - Input (Max) 40V
Voltage - Output (Min/Fixed) 1.21V
Voltage - Output (Max) 37V
Current - Output 500mA
Frequency - Switching 260kHz
Synchronous Rectifier No
Operating Temperature -40°C ~ 125°C (TJ)
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SOP

概述

Description

The LM2674M-ADJ is a high-efficiency step-down (buck) voltage regulator designed to provide adjustable output voltage with a maximum output current of 1 A. It operates over a wide input voltage range of 7 V to 40 V, making it suitable for various applications, including power supplies for microcontrollers, sensors, and other electronic devices.
This regulator features a built-in switch, minimizing external component count and simplifying the design process. It employs pulse-width modulation (PWM) to achieve high efficiency, often exceeding 90%, which reduces heat generation in compact designs. The adjustable output voltage can be set between 1.23 V and 30 V using external resistors.
Additional features include thermal shutdown, current limiting, and short-circuit protection, enhancing reliability and safety. The LM2674M-ADJ is available in multiple package types, including surface mount options, making it versatile for different PCB layouts. Its combination of performance, efficiency, and simplicity makes it a popular choice for designers seeking reliable power management solutions in consumer electronics, industrial applications, and automotive systems.

Features

The LM2674M-ADJ is a versatile step-down (buck) voltage regulator from Texas Instruments. Key features include:
1. Adjustable Output Voltage: The output voltage can be set from 1.23V to 37V, providing flexibility for various applications.
2. High Efficiency: It delivers high efficiency (up to 85%) which minimizes heat generation and increases battery life in portable devices.
3. Output Current: Capable of supplying up to 1A of output current, suitable for a range of applications including power management in consumer electronics.
4. Integrated Switch: The device has an internal power switch, reducing external component count and PCB space.
5. Wide Input Voltage Range: Accepts input voltages from 4V to 40V, accommodating a variety of power sources.
6. Thermal Shutdown and Current Limiting: Built-in protection features ensure safe operation under fault conditions.
7. Operating Temperature: Designed to operate over a temperature range of -40°C to +125°C, suitable for industrial and automotive applications.
8. Simple Design: Minimal external components required for design, simplifying integration into systems.
This combination of features makes the LM2674M-ADJ ideal for diverse power supply applications.

Package

The LM2674M-ADJ is packaged in an 8-Pin MSOP (Mini Small Outline Package) format.

Pinout

The LM2674M-ADJ is a step-down (buck) voltage regulator with a total of 5 pins. The pin configuration and their functions are as follows:
1. Vin: Input voltage supply pin. Connects to the source voltage.
2. GND: Ground pin. This is the reference point for the output voltage.
3. SW: Switch pin. This connects to the inductor and is used for energy transfer.
4. Vout: Output voltage pin. This provides the regulated output voltage.
5. ADJ: Adjustable pin. Used to set the output voltage level by connecting a resistor divider network.
The LM2674M-ADJ can provide a maximum output current of 1A and can be adjusted to output different voltage levels, making it suitable for various applications in power supply designs.

Manufacturer

The LM2674M-ADJ is manufactured by Texas Instruments (TI), a leading global semiconductor company. Founded in 1951, Texas Instruments designs and produces a wide range of electronics components, including analog, digital signal processing (DSP), and microcontroller solutions. TI serves various markets, including automotive, industrial, communications, and consumer electronics. The company is known for its innovation in technology and has a strong focus on research and development. TI's products are integral to the design of numerous electronic devices and systems worldwide.

Application

The LM2674M-ADJ is a versatile adjustable step-down voltage regulator suitable for various applications such as power supplies for microcontrollers, battery-operated devices, automotive electronics, industrial automation, and telecommunications equipment. It efficiently steps down higher input voltages to lower output levels, making it ideal for powering sensors, RF modules, and embedded systems in portable and fixed applications.

Equivalent

Equivalent products to the LM2674M-ADJ include the LM2675, LM2676, and LM2677 series from Texas Instruments, which offer similar features in adjustable voltage step-down (buck) converters. Other alternatives might include the MIC29302 from Microchip, the TPS54331 from Texas Instruments, and the LT1085 from Analog Devices, depending on specific requirements like output current, voltage range, and package type. Always verify specifications to ensure compatibility with your application.

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