LM2594HVM-5.0

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LM2594HVM-5.0

IC REG BUCK 5V 500MA 8SOIC

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規格

Package Tube
Series SIMPLE SWITCHER®
ProductStatus Not For New Designs
Function Step-Down
OutputConfiguration Positive
Topology Buck
OutputType Fixed
NumberofOutputs 1
Voltage-Input(Min) 4.5V
Voltage-Input(Max) 60V
Voltage-Output(Min/Fixed) 5V
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)

概述

Description

The LM2594HVM-5.0 is a high-voltage step-down voltage regulator designed by Texas Instruments. It is part of the LM2594 series, known for delivering efficient and reliable power conversion. Specifically, the LM2594HVM-5.0 version is set to output a fixed 5.0V voltage, making it suitable for applications requiring a stable 5V supply.
Key features of the LM2594HVM-5.0 include wide input voltage range, typically from 4.5V to 60V, allowing it to be used in a variety of power supply scenarios. It offers a maximum output current of up to 0.5A, making it suitable for powering moderate load applications. The device also includes features such as thermal shutdown, current limiting, and an efficient switching frequency of approximately 150 kHz, which contributes to its compact design by reducing the size of external components like inductors and capacitors.
The LM2594HVM-5.0 is often used in applications like automotive systems, industrial equipment, and other electronics requiring a regulated 5V power supply from higher voltage sources. Its high efficiency and reliability make it a popular choice in power management solutions.

Features

The LM2594HVM-5.0 is a step-down voltage regulator designed for efficient power conversion. Key features include:
1. Output Voltage: Fixed at 5.0V.
2. Input Voltage Range: Operates with input voltages up to 60V.
3. Output Current: Capable of delivering up to 500 mA.
4. Efficiency: High efficiency, typically around 77% to 90%, minimizing heat generation.
5. Switching Frequency: Fixed at 150 kHz, allowing for smaller external components.
6. Thermal Protection: Built-in thermal shutdown for protection against overheating.
7. Current Limiting: Integrated current limit circuitry for protection against overcurrent scenarios.
8. Simplified Design: Requires minimal external components, facilitating easy implementation in various applications.
9. Package: Available in TO-220 and TO-263 packages, suitable for different mounting and thermal management needs.
10. Soft Start Capability: Ensures a controlled startup to prevent inrush current.
11. Low Standby Current: Reduces power consumption during idle states.
These features make the LM2594HVM-5.0 suitable for applications requiring reliable, efficient, and compact DC-DC conversion.

Package

The LM2594HVM-5.0 is typically available in a TO-220 or TO-263 package type. These packages are used for voltage regulators and provide efficient heat dissipation and ease of mounting for various applications.

Pinout

The LM2594HVM-5.0 is a high-voltage version of the LM2594 series of step-down (buck) voltage regulators. It has a 5-pin configuration. Here's a concise description of its pin count and functions:
1. Pin 1 (Vin): This is the input voltage pin where the unregulated DC input voltage is supplied to the regulator.
2. Pin 2 (Output): This is the regulated output voltage pin. For the LM2594HVM-5.0, the output is a fixed 5.0 volts.
3. Pin 3 (Ground): This is the ground pin, which is the common ground for both the input and output.
4. Pin 4 (Feedback): This pin is connected to the output for fixed voltage versions to sense the output voltage and maintain regulation. In adjustable versions, it is connected to a resistor divider network to set the desired output voltage.
5. Pin 5 (ON/OFF): This pin serves as an enable/shutdown control. A low logic level turns the regulator off, reducing the current draw to a few microamperes.
The LM2594HVM-5.0 is designed for efficient power conversion and is widely used in various applications requiring a stable 5V output from a higher voltage source.

Manufacturer

The LM2594HVM-5.0 is manufactured by Texas Instruments. Texas Instruments (TI) is a global semiconductor company that designs and manufactures a wide array of analog and embedded processing chips. TI is known for its innovative semiconductor solutions that support industries ranging from automotive to consumer electronics, industrial equipment, and communications. The company focuses on creating technologies that enhance performance and efficiency, driving advancements in electronics and technology applications worldwide.

Application

The LM2594HVM-5.0 is a step-down voltage regulator suitable for applications requiring efficient power conversion. It is commonly used in battery-powered devices, distributed power systems, and industrial electronic equipment. Its ability to provide a stable 5V output makes it ideal for microcontroller power supplies, automotive electronics, and consumer electronics where a reliable, efficient voltage regulation is critical. Additionally, its wide input voltage range and ease of use make it a good choice for various other low-to-moderate power applications.

Equivalent

The LM2594HVM-5.0 is a step-down voltage regulator. Equivalent products include the LM2594-5.0, LM2595-5.0, and LM2675-5.0 from Texas Instruments, as well as the MC34063A and L4971 from STMicroelectronics. Ensure to verify specifications like input voltage range, output current, and efficiency with datasheets for compatibility in specific applications.

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