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LM2594DADJR2G
+StücklisteIC REG MULTI CONFG ADJ 8SOIC
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HerstellerOnsemi
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Herstellerteil #LM2594DADJR2G
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Paket SOIC-8
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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
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
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
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
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
Application
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.