LM2594DADJR2G

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LM2594DADJR2G

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IC REG MULTI CONFG ADJ 8SOIC

  • HerstellerOnsemi

  • Herstellerteil #LM2594DADJR2G

  • Paket SOIC-8

  • Auf Lager2865

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Spezifikationen

Attribut Wert
Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Active
Function Step-Up, Step-Down, Step-Up/Step-Down
OutputConfiguration Positive or Negative
Topology Buck, Boost, Buck-Boost
OutputType Adjustable
NumberofOutputs 1
Voltage-Input(Min) 4.5V
Voltage-Input(Max) 40V
Voltage-Output(Min/Fixed) 1.23V
Voltage-Output(Max) 37V
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)

Übersicht

Description

The LM2594DADJR2G is a monolithic integrated circuit designed by ON Semiconductor for step-down (buck) voltage regulation. It is part of the LM2594 series and offers high efficiency with minimal external components, making it suitable for a variety of applications. This adjustable output regulator can deliver an output voltage ranging from 1.2V to 37V with an input voltage up to 40V. Capable of providing up to 0.5A of output current, it is ideal for powering microprocessors, microcontrollers, and other low-power devices.
Key features include a 150 kHz fixed frequency oscillator, thermal shutdown, current limit protection, and an ON/OFF control for power saving. Its simple design requires only a few external capacitors and inductors, facilitating easy circuit implementation. The LM2594DADJR2G is available in a surface-mount package, which allows for compact and efficient PCB layouts. It is suitable for applications in consumer electronics, automotive systems, and industrial automation where efficient power regulation and compact size are crucial.

Equivalent

Equivalent products for the LM2594DADJR2G, a step-down voltage regulator, include:
1. MC34063A
2. LM2575
3. ME2184
4. XL4015
5. LMR14030
6. L78xx series (for fixed output variants)
These alternatives may differ in specifications, so it's essential to check the datasheets to ensure compatibility with your application requirements.

Features

The LM2594DADJR2G is a monolithic integrated circuit designed for step-down (buck) voltage regulation applications. Its key features include:
1. Adjustable Output Voltage: The device offers an adjustable output voltage range, allowing for versatile use across different applications.
2. Wide Input Voltage Range: It supports a broad input voltage range, typically from 4.5V to 40V, making it suitable for various power sources.
3. Simple Design: Requires minimal external components, which simplifies circuit design and reduces costs.
4. High Efficiency: The LM2594 can achieve high efficiency up to 77% or more, which is beneficial for power-sensitive applications.
5. Fixed Switching Frequency: It operates at a fixed frequency of 150 kHz, optimizing the performance and simplifying noise filtering.
6. Output Current Capability: Capable of delivering up to 500 mA of output current.
7. Thermal Shutdown and Current Limiting: Includes built-in protection features such as thermal shutdown and current limiting to prevent damage under fault conditions.
These features make the LM2594DADJR2G suitable for applications in automotive, industrial, and consumer electronics where efficient DC-DC conversion is needed.

Pinout

The LM2594DADJR2G is a step-down voltage regulator from the LM2594 series. It typically comes in a 5-pin package, specifically a surface-mount D2PAK or similar configuration. The functions of each pin are as follows:
1. Input (Vin): This is the supply voltage input pin where the unregulated input voltage is applied.
2. Output (Vout): This pin provides the regulated output voltage.
3. Ground (GND): This pin is the common ground for input and output.
4. Feedback (FB): This pin is used to set the output voltage. It connects to the resistor divider network that scales the output voltage back to the internal reference voltage.
5. ON/OFF (EN): This pin is used to enable or disable the regulator. Connecting it to ground typically turns the device off, while leaving it open or applying a voltage enables the device.
These pins assist in the efficient regulation of voltage from a higher to a lower level, suitable for various electronic applications.

Manufacturer

The LM2594DADJR2G is manufactured by ON Semiconductor, which is now known as onsemi. Onsemi is a leading semiconductor manufacturing company that specializes in the design and production of a wide range of semiconductor components. These include power and signal management, logic, discrete, and custom devices for various applications such as automotive, industrial, consumer electronics, computing, and communications. The company focuses on providing innovative solutions that improve energy efficiency, enable sustainable energy sources, and support smart technology advancements.

Application

The LM2594DADJR2G is a voltage regulator used in various applications. It is commonly found in:
1. Power Supply Systems: Provides regulated output voltage for electronic devices.
2. Battery Chargers: Ensures stable and efficient charging for batteries.
3. DC-DC Converters: Used in step-down configurations for converting higher voltage to lower voltage.
4. Embedded Systems: Supplies power to microcontrollers and other components.
5. Consumer Electronics: Powers devices like routers, modems, and LED displays.
6. Industrial Controls: Used in automation equipment and control systems.
Its efficiency and reliability make it suitable for these and other applications requiring stable voltage regulation.

Package

The LM2594DADJR2G is a step-down voltage regulator from ON Semiconductor. It is typically available in a standard SOIC-8 (Small Outline Integrated Circuit) package, which is a surface-mount package type. This allows for easy integration on printed circuit boards with a relatively low profile, suitable for compact electronic applications.

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