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LM2596SX-5.0
+Lista de MateriaisSWITCHING REGULATOR, VOLTAGE-MOD
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FabricanteNational Semiconductor
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Peça do Fabricante #LM2596SX-5.0
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Ficha Técnica LM2596SX-5.0 DataSheet
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Pacote DDPAK-6
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Especificações
| Atributo | Valor |
| Package / Case | Bulk |
| Part Status | Active |
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Description
Key features include a wide input voltage range (typically 4.5V to 40V), thermal shutdown, current limit protection, and a low standby current. The regulator operates at a fixed switching frequency of 150 kHz, which allows for the use of smaller external components, making it suitable for compact designs.
The LM2596SX-5.0 is particularly useful in applications like battery chargers, distributed power systems, and as a pre-regulator for linear regulators. Its TO-263 surface-mount package offers efficient heat dissipation, which is crucial for maintaining performance and reliability. Overall, the LM2596SX-5.0 is valued for its robustness, efficiency, and ease of integration into various electronic circuits.
Equivalent
Features
1. Output Voltage: Fixed at 5.0V.
2. Input Voltage Range: Operates with input voltages from 7V to 40V.
3. Output Current: Capable of delivering up to 3A.
4. Efficiency: High efficiency, typically up to 90%, reducing heat and energy loss.
5. Switching Frequency: Fixed switching frequency of 150 kHz, allowing for smaller external components.
6. Internal Oscillator: Synchronizes with internal circuitry for precise operation.
7. Thermal Shutdown: Protects the device from overheating by shutting down when a temperature limit is exceeded.
8. Cycle-by-Cycle Current Limiting: Prevents over-current conditions, enhancing reliability.
9. Wide Range of Applications: Suitable for power supply solutions in consumer electronics, automotive systems, and industrial applications.
These features make the LM2596SX-5.0 a versatile and reliable solution for fixed-output voltage regulation in a variety of electronic devices.
Pinout
1. VIN (Pin 1): This is the input voltage pin where the unregulated input voltage is applied.
2. Output (Pin 2): This pin provides the regulated output voltage, which in the case of the LM2596SX-5.0 is fixed at 5.0V.
3. Ground (Pin 3): This pin serves as the ground reference for the circuit and is used for both input and output.
4. Feedback (Pin 4): In the adjustable version, this pin would be used for feedback to regulate the output voltage. However, for the fixed version like LM2596SX-5.0, it is internally set.
5. ON/OFF (Pin 5): This is the shutdown pin. Applying a high level turns the device off, while a low level enables it.
The device is designed for applications requiring a simple, efficient, and compact regulator that can handle up to 3A of output current.