LM2596R-ADJ

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LM2596R-ADJ

IC REG BUCK ADJ 3A TO263-5L

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Especificaciones

Series SIMPLE SWITCHER®
Part Status Active
Function Step-Down
Output Configuration Positive
Topology Buck
Output Type Adjustable
Number of Outputs 1
Voltage - Input (Max) 40V
Voltage - Output (Min/Fixed) 1.23V
Voltage - Output (Max) 37V
Current - Output 3A
Frequency - Switching 150kHz
Synchronous Rectifier No
Operating Temperature -40°C ~ 125°C (TJ)
Mounting Type Surface Mount
Package / Case TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
Supplier Device Package TO-263-5L

Descripción general

Description

The LM2596R-ADJ is a versatile, adjustable step-down (buck) voltage regulator designed for efficient power conversion. It can deliver up to 3A of output current and operates with an input voltage range of 4.5V to 40V, making it suitable for various applications, including power supplies, battery chargers, and LED drivers.
This regulator features a switching frequency of 150 kHz, which helps minimize heat generation and allows for the use of smaller passive components. The adjustable output voltage can be set between 1.23V and 37V using external resistors, providing flexibility for different circuit requirements.
The LM2596R-ADJ includes built-in protections such as thermal shutdown and current limiting, enhancing reliability and safety in circuit designs. Its compact size and efficiency make it ideal for applications where space and thermal management are critical. Overall, the LM2596R-ADJ is a robust choice for reducing higher voltages to lower levels with high efficiency and minimal heat dissipation.

Features

The LM2596R-ADJ is a step-down (buck) voltage regulator designed to provide a stable output voltage from a higher input voltage. Key features include:
1. Adjustable Output Voltage: The output voltage can be set between 1.23V and 37V using external resistors.
2. High Efficiency: It offers efficiencies up to 90% or more, minimizing heat generation.
3. Current Capability: It can handle output loads up to 3A, making it suitable for various applications.
4. Wide Input Voltage Range: The input voltage range is from 4V to 40V.
5. Built-in Features: Includes overcurrent protection, thermal shutdown, and a voltage reference.
6. Simple Design: Requires minimal external components, aiding in reduced design complexity.
7. Wide Operating Temperature: Operates effectively in a temperature range of -40°C to +125°C.
These features make the LM2596R-ADJ ideal for power supply applications in various electronic devices.

Package

The LM2596R-ADJ is typically available in a TO-220 package type. This package allows for efficient heat dissipation and is suitable for applications requiring adjustable output voltage in DC-DC buck converter circuits.

Pinout

The LM2596R-ADJ is a step-down (buck) voltage regulator with a total of 5 pins. Its pinout and functions are as follows:
1. Input (Vin): The input voltage pin, where the unregulated voltage is supplied.
2. Ground (GND): The common ground connection for the device.
3. Vout (Adj): This pin is used to set the output voltage by connecting a resistor divider. It allows for adjustable output voltage from 1.23V to 37V.
4. Feedback (Vout): This pin connects to the output voltage to maintain regulation; it helps the regulator adjust the output voltage.
5. Switching Node (SW): This pin connects to the inductor and is used for switching the output voltage.
The LM2596R-ADJ is designed for high-efficiency step-down applications, making it suitable for powering devices from higher voltage sources.

Manufacturer

The LM2596R-ADJ is manufactured by Texas Instruments (TI), a prominent American technology company. Texas Instruments designs and produces semiconductors and various integrated circuits, which are essential components in numerous electronic devices. The company is known for its innovations in analog and embedded processing and operates in sectors including automotive, industrial, consumer electronics, and communications. TI is recognized for its robust product portfolio, which includes voltage regulators, microcontrollers, and digital signal processors, catering to both high-volume consumer markets and specialized industrial applications.

Application

The LM2596R-ADJ is a step-down (buck) voltage regulator commonly used in applications such as power supplies for consumer electronics, battery chargers, LED drivers, and automotive systems. It efficiently converts higher input voltages to lower output voltages, making it suitable for powering microcontrollers, sensors, and other low-voltage devices in industrial, telecommunications, and robotics applications. Its adjustable output feature allows flexibility in various circuit designs.

Equivalent

Equivalent products to the LM2596R-ADJ include the LM2596-ADJ, LM2576-ADJ, and LM2594-ADJ. Other alternatives are the LMT76, TL497, and MIC29302. Always check the specifications for voltage, current ratings, and features to ensure compatibility with your application.

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