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LM2576HVT-5.0
+StücklisteIC REG BUCK 5V 3A TO220-5
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HerstellerTexas Instruments
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Herstellerteil #LM2576HVT-5.0
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Paket TO-220-5
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Auf Lager6024
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) | 4V |
| Voltage - Input (Max) | 60V |
| Voltage - Output (Min/Fixed) | 5V |
| Current - Output | 3A |
| Frequency - Switching | 52kHz |
| Synchronous Rectifier | No |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Through Hole |
Übersicht
Description
Key features include an output current capability of up to 3A, thermal shutdown and current limit protection, and low power standby mode. The LM2576HVT-5.0 offers low dropout voltage and high efficiency, making it suitable for battery-powered devices. It requires minimal external components, simplifying the design process and reducing the overall component count.
The device is noted for its reliability and is available in standard TO-220 and TO-263 packages, making it versatile for various design requirements. Its robust performance in harsh environments makes it a popular choice for applications needing dependable voltage regulation.
Equivalent
1. LM2596-5.0 - A similar step-down voltage regulator with 3A output.
2. L4970A - Offers adjustable output and similar performance.
3. MC34063 - A more versatile DC-DC converter for lower current applications.
4. L78S05CV - A linear regulator for applications with lower efficiency requirements.
5. LM7805 - Another linear regulator, suitable for simpler applications.
Ensure compatibility in terms of voltage, current, and thermal performance before substituting.
Features
1. Output Voltage: Fixed output of 5.0V.
2. Input Voltage Range: Operates with an input voltage range typically up to 60V.
3. Output Current: Capable of delivering up to 3A continuous output current.
4. Efficiency: High efficiency, usually around 77% to 80%, reducing heat generation.
5. Internal Switch: Includes a 3.3A high-efficiency switch.
6. Frequency: Fixed switching frequency of 52 kHz, reducing external component size.
7. Thermal Shutdown: Built-in thermal protection to prevent overheating.
8. Current Limit: Features a current limit for circuit protection.
9. Low Standby Current: Low quiescent current draw when not switching.
10. Wide Temperature Range: Designed to operate in a wide range of temperatures, often from -40°C to +125°C.
These features make the LM2576HVT-5.0 suitable for various applications requiring reliable and efficient voltage regulation.
Pinout
1. VIN: This is the input voltage pin where the unregulated DC voltage is supplied.
2. Output (VOUT): This pin provides the regulated 5V output.
3. Ground (GND): This is the ground pin and serves as the reference point for the input and output voltages.
4. Feedback (FB): In the fixed version, the feedback pin is internally connected to maintain the output voltage at the specified level. In adjustable versions, it's used to sense the output voltage for regulation.
5. ON/OFF: This pin is used to enable or disable the regulator. When connected to the ground, the regulator is enabled, and when connected to a higher voltage, it is disabled.
The LM2576 series offers ease of use with features like thermal shutdown, current limiting, and efficient switching, making them suitable for various power supply applications.
Manufacturer
Application
1. Power Supply Solutions: Utilized in creating step-down (buck) converters, enabling efficient conversion from a higher DC input to a stable 5V output.
2. Consumer Electronics: Used in devices requiring stable power, such as routers and gaming consoles.
3. Industrial Applications: Applied in factory automation systems and machinery requiring robust voltage regulation.
4. Automotive Electronics: Employed in vehicle systems where consistent voltage is critical despite fluctuating input.
5. Embedded Systems: Powers microcontrollers and peripherals in embedded applications, ensuring reliable operation.