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LM2941SX
+NomenclatureIC REG LIN POS ADJ 1A DDPAK
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FabricantTexas Instruments
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Pièce fabricant #LM2941SX
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Fiche technique LM2941SX DataSheet
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Package TO-263-5
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En stock6514
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Spécifications
| Attribut | Valeur |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Not For New Designs |
| OutputConfiguration | Positive |
| OutputType | Adjustable |
| NumberofRegulators | 1 |
| Voltage-Input(Max) | 26V |
| Voltage-Output(Min/Fixed) | 5V |
| Voltage-Output(Max) | 20V |
| VoltageDropout(Max) | 1V @ 1A |
| Current-Output | 1A |
| Current-Quiescent(Iq) | 10 mA |
| Current-Supply(Max) | 15 mA |
| ControlFeatures | Enable |
| ProtectionFeatures | Over Temperature, Reverse Polarity, Short Circuit |
| OperatingTemperature | -40°C ~ 125°C |
| MountingType | Surface Mount |
| Package/Case | TO-263-6, D²Pak (5 Leads + Tab), TO-263BA |
Présentation
Description
Key features of the LM2941SX include a dropout voltage of approximately 0.5V at higher load currents, making it suitable for use in battery-powered devices where maximizing efficiency is crucial. It supports an output current of up to 1A and provides a wide range of adjustable output voltages. The device is equipped with a variety of protective features, such as current limiting and thermal shutdown, to ensure reliable operation under different conditions.
The LM2941SX is commonly used in automotive, industrial, and consumer electronics applications, where stable power supply and efficiency are critical. Its ease of use, coupled with robust performance characteristics, makes it a popular choice for designers and engineers.
Equivalent
Features
Additional features include:
1. Current Limiting and Thermal Shutdown: Protects the device from overloads and excessive heat.
2. Reverse Battery Protection: Guards against installation errors.
3. Load Dump Protection: Handles over-voltage transients safely.
4. Wide Input Voltage Range: Operates effectively across a broad range of input voltages.
5. Low Quiescent Current: Minimizes power consumption at idle states.
The LM2941SX is ideal for automotive and industrial applications due to its robust protection features and reliable performance. It is available in a TO-263 surface-mount package, facilitating compact and efficient designs.
Pinout
1. Input (Pin 1): The voltage input pin where the unregulated input voltage is applied.
2. Output (Pin 2): This pin provides the regulated output voltage. Connect the load to this pin.
3. Adjust (Pin 3): This pin allows the adjustment of the output voltage. By connecting a resistor divider between the output and ground, you can set the output voltage.
4. Shutdown (Pin 4): An active-low pin used to disable the regulator. Pulling this pin low turns off the output.
5. Ground (Pin 5): This pin is connected to the ground of the system.
The LM2941SX is well-suited for applications requiring efficient voltage regulation with a low dropout voltage. Its adjustable feature allows for flexibility in setting output voltage levels based on specific needs.
Manufacturer
Application
1. Automotive Electronics: Suitable for powering microcontrollers and sensors due to its high input voltage tolerance and stability.
2. Consumer Electronics: Used in devices like set-top boxes and LCD displays for efficient power management.
3. Industrial Control Systems: Provides stable power to control circuits and sensors.
4. Communication Devices: Supports RF and other sensitive circuits with low noise requirements.
5. Battery-Powered Equipment: Offers efficient power regulation to extend battery life.
Its features such as adjustable output, low dropout voltage, and high load regulation make it versatile for various power management applications.