LM2673SX-ADJ

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LM2673SX-ADJ

IC REG BUCK ADJ 3A TO263-7

  • 제조업체
  • Mfr.부분 #LM2673SX-ADJ
  • 패키지 TO-263 (KTW)-7
  • 데이터시트
  • 재고 있음2064

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사양

Package Tape & Reel (TR),Cut Tape (CT),Bulk
Series SIMPLE SWITCHER®
ProductStatus Not For New Designs
Function Step-Down
OutputConfiguration Positive
Topology Buck
OutputType Adjustable
NumberofOutputs 1
Voltage-Input(Min) 8V
Voltage-Input(Max) 40V
Voltage-Output(Min/Fixed) 1.2V
Voltage-Output(Max) 37V
Current-Output 3A
Frequency-Switching 260kHz
SynchronousRectifier No
OperatingTemperature -40°C ~ 125°C (TJ)
MountingType Surface Mount
Package/Case TO-263-8, D²Pak (7 Leads + Tab), TO-263CA

개요

Description

The LM2673SX-ADJ is a high-efficiency step-down (buck) voltage regulator from Texas Instruments. It is part of the Simple Switcher series, designed for easy and flexible implementation in power supply applications. The "ADJ" in its name indicates that it features an adjustable output voltage, allowing users to set the desired output between 1.21V and 37V with an input voltage range of up to 40V. This device can deliver up to 3A of output current.
Key features include a high switching frequency (260 kHz), which helps in reducing the size of external components, and a thermal shutdown for over-temperature protection, ensuring reliable operation. The LM2673SX-ADJ also integrates features like cycle-by-cycle current limiting and an ON/OFF control for power-saving purposes. Its TO-263 surface-mount package is suitable for compact and space-constrained designs.
Overall, the LM2673SX-ADJ is ideal for applications needing efficient voltage regulation with minimal external components, such as in battery-powered devices, distributed power systems, and industrial equipment.

Features

The LM2673SX-ADJ is a step-down voltage regulator known for its high efficiency and performance. Key features include:
1. Adjustable Output Voltage: It provides an adjustable output, allowing users to set the desired voltage level according to their application needs.
2. High Efficiency: Capable of achieving efficiencies up to 90%, making it suitable for applications requiring minimal power loss.
3. Output Current: Can deliver up to 3A of continuous output current, supporting high-power applications.
4. Wide Input Voltage Range: Supports a broad input voltage range, typically from 8V to 40V, catering to various power supply conditions.
5. Switching Frequency: Operates at a fixed switching frequency of 260 kHz, ensuring stable performance.
6. Thermal Protection: Includes thermal shutdown and current limiting features to prevent damage due to overheating or excessive current.
7. Minimum External Components: Designed to operate with a minimal number of external components, simplifying the overall design.
8. Package: Available in a TO-263 surface-mount package, facilitating easy integration into PCB designs.
These features make the LM2673SX-ADJ suitable for a variety of applications, including battery-powered systems, distributed power systems, and industrial automation.

Package

The LM2673SX-ADJ is a voltage regulator with an adjustable output. It comes in a surface-mount package type, specifically the TO-263 (also known as the D2PAK) 7-lead package. This package is suitable for applications requiring efficient heat dissipation and compact design.

Pinout

The LM2673SX-ADJ is a step-down voltage regulator from Texas Instruments. It is part of the SIMPLE SWITCHER® series and is designed to provide a flexible and efficient solution for power management in various applications.
The LM2673SX-ADJ comes in a 7-pin surface-mount TO-263 package. Here is a brief overview of its pin functions:
1. VIN (Input Voltage): Connects to the input supply voltage.
2. GND (Ground): Ground pin for both the input and output.
3. SW (Switch): The output switch pin connected to the inductor.
4. BST (Bootstrap): Supplies the drive voltage for the high-side switch.
5. FB (Feedback): Used to set the output voltage via a resistor divider.
6. ON/OFF (Enable): Enables or disables the device; active low.
7. NC (No Connect): This pin is not electrically connected internally, providing no function.
This adjustable version allows the output voltage to be set through external resistors. With a wide input voltage range and a high output current capability, the LM2673SX-ADJ is commonly used in applications requiring efficient DC-DC conversion.

Manufacturer

The LM2673SX-ADJ is manufactured by Texas Instruments. Texas Instruments is an American technology company that designs and manufactures semiconductors and various integrated circuits, which it sells to electronics designers and manufacturers globally. TI is known for its innovation in semiconductor technologies, particularly in analog chips and embedded processors. The company operates in diverse segments including industrial, automotive, personal electronics, communications, and enterprise systems, focusing on providing solutions for a wide range of applications.

Application

The LM2673SX-ADJ is a versatile step-down voltage regulator used in various applications, including power supply solutions for electronic devices, battery-powered equipment, and embedded systems. It is suitable for applications requiring high-efficiency voltage conversion with an adjustable output, such as industrial automation, telecommunications equipment, and consumer electronics. Its high current output capability and efficiency make it ideal for driving microcontrollers, FPGAs, and other digital circuits.

Equivalent

Equivalent products to the LM2673SX-ADJ, a step-down voltage regulator, include the LM2596-ADJ, LM2595-ADJ, and LM2675-ADJ. These chips offer similar functionality in voltage regulation with varying output currents and efficiency characteristics. It's important to compare the specific electrical characteristics and packaging to ensure the equivalent chip meets the requirements of your application.

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