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LM2574HVMX-5.0
+Lista de MateriaisIC REG BUCK 5V 500MA 14SOIC
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FabricanteTexas Instruments
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Peça do Fabricante #LM2574HVMX-5.0
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Ficha Técnica LM2574HVMX-5.0 DataSheet
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Pacote SOIC-14
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Especificações
| Atributo | Valor |
| Package / Case | Tape & Reel (TR),Cut Tape (CT),Bulk |
| 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 | 500mA |
| Frequency - Switching | 52kHz |
| Synchronous Rectifier | No |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
Visão Geral
Description
Key features include a wide input voltage range (typically up to 60V for the "HV" or high voltage version), making it suitable for a variety of industrial and automotive applications. The LM2574HVMX-5.0 integrates a fixed-frequency oscillator (52 kHz) which helps simplify filtering design and reduces external component costs. It also comes with current limiting, thermal shutdown, and an ON/OFF pin for low power standby mode.
The device is available in a surface-mount package (often the SOIC-8 package), facilitating compact circuit design. Its versatility, ease of use, and reliability make it popular for power supply solutions that require stable 5V outputs from higher voltage sources.
Equivalent
Features
1. Fixed Output Voltage: Delivers a stable 5.0V output.
2. Input Voltage Range: Capable of handling a wide input voltage range, typically up to 60V.
3. Output Current: Provides up to 500mA of load current.
4. Efficiency: High efficiency due to its switching regulation technique, typically around 80-90%.
5. Switching Frequency: Operates at a fixed frequency, minimizing output noise and simplifying filtering.
6. Thermal Shutdown: Integrated thermal protection to prevent damage due to overheating.
7. Current Limiting: Built-in current limiting for added protection in overload conditions.
8. Low Standby Current: Low power consumption when the device is not actively switching.
9. Ease of Use: Requires minimal external components, simplifying design and reducing board space.
10. Package: Available in a surface-mount package for ease of integration in various applications.
These features make it suitable for a variety of applications including automotive, industrial, and consumer electronics.
Pinout
1. Vin: Input voltage pin, where the DC input voltage is applied.
2. Vout: The output voltage pin provides the regulated 5.0V output.
3. Ground (GND): Common ground pin for input and output voltages.
4. Feedback (FB): Connects internally to a fixed resistor divider network, specific for the 5.0V version, for controlling the output voltage.
5. ON/OFF: Shutdown control pin. When connected to ground, the regulator is turned on, and when connected to above 1.2V, the regulator is turned off.
6. Compensation (COMP): Internally connected for frequency compensation. Usually no external connection is required.
7. NC (No Connection): Not internally connected, typically left unconnected.
8. NC (No Connection): Similar to pin 7, not internally connected.
These pin functions are essential for integrating the LM2574HVMX-5.0 into electronic circuits for efficient voltage regulation.
Manufacturer
Application
1. Industrial Automation: For reliable power supply to microcontrollers and sensors.
2. Consumer Electronics: In devices like set-top boxes, modems, and televisions for efficient power management.
3. Automotive Systems: Used in infotainment systems and electronic control units.
4. Telecommunications: Provides power to networking equipment such as routers and switches.
5. Embedded Systems: Supplies power to processors and peripherals in embedded applications.
6. Battery-Powered Devices: Extends battery life by efficiently regulating voltage.
These applications benefit from the LM2574HVMX-5.0's ability to deliver stable output voltage with low power loss.