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LM2594M-5.0
+StücklisteIC REG BUCK 5V 500MA 8SOIC
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HerstellerTexas Instruments
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Herstellerteil #LM2594M-5.0
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Paket SOIC-8
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Auf Lager6052
365 Tage Qualitätsgarantie
7*24 Stunden-Servicegarantie
90-Tage Kundendienstgarantie
Originalproduktgarantie
Spezifikationen
| Attribut | Wert |
| Package / Case | Tube |
| Series | SIMPLE SWITCHER® |
| Part Status | Not For New Designs |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Fixed |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 4.5V |
| Voltage - Input (Max) | 40V |
| Voltage - Output (Min/Fixed) | 5V |
| Current - Output | 500mA |
| Frequency - Switching | 150kHz |
| Synchronous Rectifier | No |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
Übersicht
Description
Key features of the LM2594M-5.0 include:
1. Efficiency: It offers high efficiency up to 90% due to its switching technology, making it ideal for battery-powered applications.
2. Input Voltage: It can handle a wide input voltage range, typically from 4.5V to 40V.
3. Output Current: Capable of delivering up to 0.5A of output current.
4. Switching Frequency: Operates at a fixed frequency of 150 kHz, reducing noise and electromagnetic interference (EMI).
5. Protection: Includes features like thermal shutdown, current limiting, and safe area protection.
6. Package: Available in a TO-220 or surface-mount TO-263 package for flexible design integration.
The LM2594M-5.0 is suitable for various applications, including power supply for microprocessors, battery chargers, and distributed power systems.
Equivalent
1. L4971 by STMicroelectronics
2. MC34063 by ON Semiconductor (with additional components)
3. LM2575-5.0 by Texas Instruments
4. MC34167 by ON Semiconductor (higher current capability)
5. LT1767 by Analog Devices
These alternatives may vary in specifications like current output and efficiency, so ensure compatibility with your specific application requirements.
Features
1. Output Voltage: Fixed at 5.0V.
2. Input Voltage Range: Supports a wide range of 4.5V to 40V.
3. Output Current: Capable of delivering up to 0.5A.
4. Efficiency: High-efficiency operation, typically over 75%.
5. Frequency: Operates at a fixed switching frequency of 150 kHz, which aids in reducing the size of external components.
6. Protection Features: Includes thermal shutdown and current limit protection to prevent damage due to overheating or overloading.
7. Minimum External Components: Requires minimal external components, simplifying the design.
8. Low Standby Current: Designed to reduce power consumption in standby mode.
9. Package: Available in surface-mount and through-hole packages for versatile mounting options.
The LM2594M-5.0 is ideal for applications needing a regulated 5V output with moderate current requirements and where efficiency and component count are important factors.
Pinout
1. Vin (Input Voltage): This is the pin where the unregulated input voltage is applied.
2. GND (Ground): The ground pin serves as a common return path for both the input and output.
3. Vout (Output Voltage): This pin provides the regulated output voltage.
4. Feedback (FB): This pin is used to set the output voltage by connecting it to a resistor divider network from the output.
5. ON/OFF (Enable): This pin is used to enable or disable the device. A low signal typically disables the output, while a high signal enables it.
The LM2594M-5.0 specifically outputs a fixed 5.0V when properly configured. It is noted for its efficiency and ability to deliver output currents up to 500 mA.
Manufacturer
Application
1. Power Management: Efficiently converts a higher voltage to a regulated 5V output for electronics.
2. Embedded Systems: Provides power to microcontrollers and other digital components.
3. Industrial Automation: Supplies stable voltage to sensors and control units.
4. Consumer Electronics: Powers devices like routers, modems, and audio equipment.
5. Automotive Applications: Used in car infotainment systems and other electronic modules.
Its ability to deliver up to 0.5A output current with high efficiency makes it suitable for battery-powered devices and other applications requiring reliable voltage regulation.