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LM2596S-12
+Lista de MateriaisIC REG BUCK 12V 3A TO263-5
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FabricanteTexas Instruments
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Peça do Fabricante #LM2596S-12
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Pacote TO-263-5
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Especificações
| Atributo | Valor |
| Package | Tube |
| Series | SIMPLE SWITCHER® |
| ProductStatus | Obsolete |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Fixed |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 4.5V |
| Voltage-Input(Max) | 40V |
| Voltage-Output(Min/Fixed) | 12V |
| Current-Output | 3A |
| Frequency-Switching | 150kHz |
| SynchronousRectifier | No |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | TO-263-6, D²Pak (5 Leads + Tab), TO-263BA |
Visão Geral
Description
Key features of the LM2596S-12 include a fixed output voltage of 12V, a switching frequency of 150 kHz, and an output current capability of up to 3A. It also integrates essential functions like thermal shutdown, current limiting, and a soft-start to prevent high inrush currents.
The device requires minimal external components, making it easy to design with, and is suitable for a wide range of applications such as battery chargers, LED drivers, and power supplies for embedded systems. The LM2596S-12 comes in a TO-263 package, which helps in effective heat dissipation, further enhancing its performance in compact designs.
Equivalent
Features
1. Input Voltage Range: It supports a wide input voltage range of 4.5V to 40V, making it versatile for various applications.
2. Output Current: The regulator can deliver an output current up to 3A, suitable for powering moderate loads.
3. Efficiency: It boasts high efficiency up to 90%, which reduces heat generation and improves performance.
4. Switching Frequency: Operates at a fixed switching frequency of 150 kHz, allowing for smaller external components compared to low-frequency regulators.
5. Thermal Shutdown: Includes thermal shutdown capability to protect the device from overheating.
6. Short-Circuit Protection: Features current-limiting and short-circuit protection to enhance reliability.
7. Package: Available in a TO-220 or TO-263 package, which provides convenient mounting options and good thermal dissipation.
These features make the LM2596S-12 suitable for applications requiring efficient power conversion and stable 12V output.
Pinout
1. Pin 1 - Input (Vin): This is the input pin where the unregulated higher input voltage is supplied. The pin accepts voltages typically ranging from about 4.5V to 40V.
2. Pin 2 - Output (Vout): This is the output pin which provides the regulated 12V. It delivers the step-down voltage to the load.
3. Pin 3 - Ground (GND): This pin is connected to the ground of the circuit and serves as a reference point for the input and output voltages.
4. Pin 4 - Feedback (FB): This pin is used for setting the output voltage by connecting it to a voltage divider network from the output.
5. Pin 5 - ON/OFF Control (Enable): This pin is used to enable or disable the device. When connected to a low logic level, it turns off the regulator, and when high, it enables the output.
This IC is commonly used in applications where efficient voltage regulation is necessary.
Manufacturer
Application
1. Power Supply Designs: Used in DC-DC converter circuits to step down voltage efficiently.
2. Embedded Systems: Provides stable power to microcontrollers and digital circuits.
3. Industrial Automation: Supplies power to sensors and control units.
4. Consumer Electronics: Powers devices like chargers, LED drivers, and portable equipment.
5. Telecommunications: Used in power management systems for communication devices.
6. Automotive: Regulates power in automotive electronic systems.
Its versatility makes it suitable for any application requiring efficient voltage regulation with a 12V output.