LM2594MX-3.3

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LM2594MX-3.3

IC REG BUCK 3.3V 500MA 8SOIC

  • Fabricante
  • Mfr. Parte #LM2594MX-3.3
  • Paquete SOIC-8
  • Hoja de datos
  • En stock7395

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Especificaciones

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) 3.3V
Current-Output 500mA
Frequency-Switching 150kHz
SynchronousRectifier No
OperatingTemperature -40°C ~ 125°C (TJ)
MountingType Surface Mount
Package/Case 8-SOIC (0.154, 3.90mm Width)

Descripción general

Description

The LM2594MX-3.3 is a step-down voltage regulator from Texas Instruments, specifically designed for efficient power conversion. It belongs to the LM2594 series, which is known for providing a fixed 3.3V output from a higher input voltage source. This regulator can handle input voltages ranging from 4.5V to 40V, making it suitable for various applications in electronics where a stable 3.3V supply is needed.
Key features of the LM2594MX-3.3 include a maximum output current of 0.5A, high efficiency due to its low internal power dissipation, and a switching frequency of 150 kHz, which allows for smaller external components. The device includes features like thermal shutdown, current limiting, and a wide operating temperature range, enhancing its reliability. It typically requires minimal external components, simplifying PCB design and reducing overall system cost.
This voltage regulator is often used in battery-powered devices, industrial electronics, and other systems requiring a compact, efficient, and reliable power supply solution for 3.3V circuits. Its TO-252 (DPAK) package makes it suitable for surface-mount applications.

Features

The LM2594MX-3.3 is a monolithic integrated circuit that functions as a step-down voltage regulator. Key features include:
1. Output Voltage: Provides a fixed 3.3V output, suitable for various low-voltage applications.
2. Input Voltage Range: Operates with an input voltage range of 4.5V to 40V, making it versatile for different power sources.
3. Output Current: Capable of delivering up to 0.5A of continuous load current.
4. Efficiency: Offers high efficiency due to its switching regulator design, minimizing power loss.
5. Switching Frequency: Internal fixed frequency oscillator operates at 150 kHz, allowing the use of smaller inductors and capacitors.
6. Thermal and Overcurrent Protection: Includes built-in features to prevent damage from overheating and excessive current.
7. Simple Design: Requires minimal external components, reducing complexity and cost in power supply designs.
8. Package: Available in an 8-lead SOIC package, suitable for space-constrained applications.
These features make the LM2594MX-3.3 ideal for use in applications requiring efficient, compact, and reliable power conversion.

Package

The LM2594MX-3.3 is a voltage regulator with a TO-263 surface-mount package type. This package is designed for better thermal performance and is commonly used in power management applications.

Pinout

The LM2594MX-3.3 is a step-down (buck) voltage regulator that comes in an SOIC-8 package. It has 8 pins and is designed to provide a fixed output voltage of 3.3V. Here's a brief overview of its pin functions:
1. Vin: Input voltage pin. Connects to the input power source.
2. GND: Ground pin. Common ground for both input and output.
3. Output: Output voltage pin. Delivers the regulated 3.3V output.
4. Feedback: This pin is generally connected internally for fixed voltage versions like 3.3V, but it is used to sense the output voltage.
5. ON/OFF: This pin allows for enabling and disabling the regulator. A logic high or leaving it open enables the regulator, while a logic low disables it.
6. Compensation: Internally used for frequency compensation.
7. Boost: Used to improve the efficiency of the regulator by connecting it to an external capacitor.
8. SW: Switch pin. Connects to the inductor and carries the switching current.
These pins work together to regulate the output voltage while maintaining efficiency.

Manufacturer

The LM2594MX-3.3 is a voltage regulator manufactured by Texas Instruments. Texas Instruments (TI) is a global semiconductor company that designs and produces a wide range of integrated circuits and other electronic components. TI is known for its innovation in the field of analog and embedded processing products, serving various industries including automotive, industrial, personal electronics, communications equipment, and enterprise systems. The company focuses on developing products that help engineers create energy-efficient systems, enhance performance, and reduce costs.

Application

The LM2594MX-3.3 is a step-down voltage regulator commonly used in applications requiring efficient and stable 3.3V output. It is suitable for powering microcontrollers, sensors, and communication devices. Additionally, it is used in battery-powered devices, portable instruments, and embedded systems due to its efficiency and compact design. It also finds applications in consumer electronics, automotive electronics, and industrial equipment where regulated power supply is essential.

Equivalent

The LM2594MX-3.3 is a step-down (buck) voltage regulator. Equivalent products include the LM2594N-3.3, LM2574N-3.3, and LM2575N-3.3, which are similar in functionality. You might also consider the MC34063A or LM2675-3.3 for similar applications, though they may have different specifications or package types. Always verify the electrical characteristics and package compatibility before substituting.

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