LM2596SX-12

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LM2596SX-12

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IC REG BUCK 12V 3A TO263-5

  • HerstellerTexas Instruments

  • Herstellerteil #LM2596SX-12

  • Paket TO-263-5

  • Auf Lager2471

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Attribut Wert
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) 4.5V
Voltage-Input(Max) 40V
Voltage-Output(Min/Fixed) 12V
Current-Output 3A
Frequency-Switching 150kHz
SynchronousRectifier No
OperatingTemperature -40°C ~ 125°C (TJ)
MountingType Surface Mount
Package/Case TO-263-6, D²Pak (5 Leads + Tab), TO-263BA

Übersicht

Description

The LM2596SX-12 is a voltage regulator integrated circuit (IC) designed for step-down (buck) applications. It is part of the LM2596 series, known for its efficiency and ease of use in DC-DC conversion tasks. The "12" in its name indicates that it outputs a fixed voltage of 12 volts. This regulator can handle an input voltage range typically between 4.5V and 40V, making it suitable for a wide variety of power supply sources.
The device is designed to deliver up to 3A of output current, making it ideal for medium-power applications. It is known for its high efficiency, which reduces heat generation and improves performance. The LM2596SX-12 contains an internal switch for step-down conversion and typically requires a minimal number of external components, such as an inductor, a diode, and capacitors, to function properly.
Features like thermal shutdown, current limit protection, and a wide input voltage range make the LM2596SX-12 a reliable choice for powering various electronic devices and systems.

Equivalent

The LM2596SX-12 is a step-down voltage regulator. Equivalent products include:
1. LM2596-12 from different manufacturers, offering similar specifications.
2. XL4015 - A DC-DC Buck Converter with similar voltage and current ratings.
3. L7805CV - Another voltage regulator option, though with a fixed 5V output.
4. MP1584 - A compact step-down converter often used in similar applications.
5. TPS54331 - A 3A, step-down converter from Texas Instruments.
These alternatives depend on specific application requirements like output current and efficiency.

Features

The LM2596SX-12 is a step-down voltage regulator designed for efficient power management. Key features include:
1. Output Voltage: Fixed output of 12V.
2. Input Voltage Range: Operates with an input voltage range of 4.5V to 40V.
3. Output Current: Capable of delivering up to 3A continuous output current.
4. Efficiency: High efficiency, typically around 90%.
5. Switching Frequency: Fixed switching frequency of 150 kHz.
6. Thermal Protection: Built-in thermal shutdown to prevent overheating.
7. Short-Circuit Protection: Protects against overload conditions.
8. Voltage Regulation: Offers good line and load regulation.
9. Component Integration: Reduces the need for external components, simplifying design.
These features make the LM2596SX-12 ideal for powering various electronic applications requiring a stable 12V output from a higher DC input.

Pinout

The LM2596SX-12 is a fixed-output voltage regulator featuring a 12V output. It typically comes in a TO-263 package and has a pin count of 5. The functions of the pins are as follows:
1. VIN (Input Voltage): This pin is where the input voltage is provided, ranging typically from 4.5V to 40V for the LM2596 series.
2. Output: This pin is the regulated output voltage pin and provides the fixed 12V output.
3. Ground (GND): This is the ground reference pin for the input and output voltages.
4. Feedback (FB): For the adjustable version, this pin is used to set the output voltage. However, in the fixed variant like the LM2596SX-12, it is internally set and not used externally for adjustments.
5. ON/OFF (SD - Shutdown): This pin is used to enable or disable the regulator. Connecting this pin to a high logic level turns the regulator off, while a low logic level turns it on.
These pins enable the LM2596SX-12 to efficiently convert higher input voltages into a stable 12V output, suitable for various electronic applications.

Manufacturer

The LM2596SX-12 is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and produces a wide range of electronic components and systems. It is known for its development of analog chips, embedded processors, and various other semiconductor technologies. Texas Instruments serves numerous industries, including automotive, industrial, electronics, and telecommunications, by providing components that enable advancements in electronic devices and systems. The LM2596SX-12, in particular, is a switching voltage regulator, which is part of their extensive catalog of power management products.

Application

The LM2596SX-12 is a voltage regulator commonly used in applications that require efficient power conversion. Key application areas include:
1. DC-DC Conversion: Used for step-down (buck) voltage conversion in power supply systems.
2. Embedded Systems: Powers microcontrollers and other digital components in embedded applications.
3. Consumer Electronics: Provides stable power to devices like set-top boxes, TVs, and audio systems.
4. Industrial Automation: Used in control systems for machinery and equipment.
5. Telecommunications: Powers networking and communication devices.
6. Automotive Electronics: Supplies regulated voltages in automotive applications.
Its efficiency, reliability, and ease of use make it a versatile component in various electronic designs.

Package

The LM2596SX-12 is a voltage regulator with a TO-263 package type. This package is also referred to as a D²PAK, which is a surface-mount plastic package designed for power semiconductor devices, offering good thermal performance and compact size suitable for automated assembly.

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