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LM2673S-5.0

Name: LM2673S-5.0
Rating: 4.7 (12 reviews)

IC REG BUCK 5V 3A TO263

Производитель
Мфр. Часть #LM2673S-5.0
Пакет
Лист данных LM2673S-5.0 DataSheet
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Спецификации

Series	SIMPLE SWITCHER®
Part Status	Obsolete
Function	Step-Down
Output Configuration	Positive
Topology	Buck
Output Type	Fixed
Number of Outputs	1
Voltage - Input (Min)	8V
Voltage - Input (Max)	40V
Voltage - Output (Min/Fixed)	5V
Current - Output	3A
Frequency - Switching	260kHz
Synchronous Rectifier	No
Operating Temperature	-40°C ~ 125°C (TJ)
Mounting Type	Surface Mount
Package / Case	TO-263-8, D2PAK (7 Leads + Tab), TO-263CA
Supplier Device Package	TO-263 (DDPAK-7)
Base Product Number	LM2673

Обзор

Description

The LM2673S-5.0 is a versatile step-down (buck) voltage regulator that provides a fixed output voltage of 5.0V. Designed for efficient power management, it can handle load currents up to 3A with a high efficiency of up to 90%. The device operates over a wide input voltage range of 8V to 40V, making it suitable for various applications, including automotive and industrial systems.
Key features include built-in protection mechanisms like thermal shutdown, current limiting, and reverse voltage protection, ensuring reliability in demanding environments. The LM2673S-5.0 integrates a switching regulator with minimal external components, simplifying design and reducing board space. It also includes an internal soft-start function to limit inrush current.
Common applications include powering microcontrollers, sensors, and other electronic devices that require stable voltage. Its compact package and robust performance make it a popular choice for engineers looking to design efficient power supply circuits.

Features

The LM2673S-5.0 is a step-down (buck) voltage regulator from Texas Instruments designed for efficient power management. Key features include:
1. Output Voltage: Fixed output of 5V with a maximum output current of 3A.
2. Input Voltage Range: Accepts a wide input voltage range from 4.5V to 40V.
3. Efficiency: High efficiency (up to 90%) minimizes heat generation.
4. Switching Frequency: Operates at a fixed frequency of 260 kHz, allowing for smaller inductors and capacitors.
5. Thermal Protection: Includes thermal shutdown to prevent overheating.
6. Current Limit: Features current limiting to protect against overcurrent conditions.
7. Integrated Components: Combines a high-frequency switch with additional features like a bootstrap capacitor, making it compact and easier to design with.
8. Soft Start: Provides a soft-start feature to limit inrush current during startup.
Overall, the LM2673S-5.0 is suitable for a variety of applications, including automotive, industrial, and consumer electronics.

Package

The LM2673S-5.0 is packaged in a SOIC-8 (Small Outline Integrated Circuit) package.

Pinout

The LM2673S-5.0 is a step-down voltage regulator with a pin count of 5. Its primary function is to convert higher input voltages into a stable 5V output, suitable for various electronic applications.
Pin Functionality:
1. VIN: Input voltage pin, where the higher voltage is applied.
2. GND: Ground pin, the common reference point for the circuit.
3. SW: Switch pin, connected to the internal power switch; it connects to the inductor during the switching cycle.
4. VOUT: Output voltage pin that delivers a regulated output voltage of 5V.
5. COMP: Compensation pin for stability; it connects to external components to manage the feedback loop stability.
The LM2673S-5.0 is designed for efficiency and thermal performance, making it suitable for battery-operated devices and other applications requiring efficient voltage regulation.

Manufacturer

The LM2673S-5.0 is manufactured by Texas Instruments (TI), a leading American technology company. Texas Instruments specializes in designing and manufacturing semiconductors and various integrated circuits, including analog, digital signal processing, and microcontroller products. Founded in 1930, TI has a strong presence in the electronics industry and serves a wide range of sectors, including automotive, industrial, communications, and consumer electronics. The LM2673S-5.0 is a step-down (buck) voltage regulator known for its efficiency and ability to provide a stable 5V output from a higher input voltage.

Application

The LM2673S-5.0 is a step-down voltage regulator suitable for applications such as power management in portable devices, battery-powered systems, automotive electronics, and industrial equipment. It provides efficient voltage regulation for microcontrollers, sensors, and communication devices, ensuring stable operation in various environments. Additionally, it is ideal for applications requiring low quiescent current and compact size.

Equivalent

Equivalent products to the LM2673S-5.0 include the LM2673-5.0, LM2673S-3.3, LM2575-5.0, and the MIC29302. Other alternatives are the TPS54331, LT1085, and ADP2302, depending on specific performance requirements such as load current, input voltage range, and efficiency. Always verify the specifications to ensure compatibility with your application.

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