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LM2941S
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FabricanteTexas Instruments
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Peça do Fabricante #LM2941S
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Ficha Técnica LM2941S DataSheet
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Pacote TO-263-5
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Especificações
| Atributo | Valor |
| Package / Case | Tube |
| Part Status | Not For New Designs |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 26V |
| Voltage - Output (Min/Fixed) | 5V |
| Voltage - Output (Max) | 20V |
| Voltage Dropout (Max) | 1V @ 1A |
| Current - Output | 1A |
| Current - Quiescent (Iq) | 10 mA |
| Current - Supply (Max) | 15 mA |
| Control Features | Enable |
| Protection Features | Over Temperature, Reverse Polarity, Short Circuit |
| Operating Temperature | -40°C ~ 125°C |
| Mounting Type | Surface Mount |
Visão Geral
Description
Key features of the LM2941S include short-circuit current limiting, thermal shutdown protection, and a low standby current, which enhance its reliability and efficiency. The device also offers a wide input voltage range, typically from 6V to 26V, which provides flexibility in various design applications. It is commonly used in automotive, industrial, and consumer electronics to maintain stable and regulated power supply lines.
The LM2941S comes in a TO-263 surface-mount package, which aids in heat dissipation and compact circuit design. Overall, it is a versatile and robust solution for maintaining voltage regulation in constrained environments.
Equivalent
1. LM2940S: Another low-dropout regulator with similar features.
2. MIC29302: A high-current, low-dropout regulator.
3. LT1085: An adjustable regulator with low dropout.
4. LD1085: A low dropout positive voltage regulator.
5. MC33269: Offers low dropout and similar current output.
Ensure compatibility with your specific requirements such as current, dropout voltage, and package type when selecting an equivalent.
Features
1. Low Dropout Voltage: Typically around 0.5V at 1A, enabling efficient operation even with minimal input-output voltage differentials.
2. Output Current: Capable of providing up to 1A of output current, suitable for moderate power applications.
3. Adjustable Output: The output voltage can be adjusted from 5V to 20V using external resistors.
4. Protection Features: Includes current limiting, thermal shutdown, and safe area protection to enhance reliability under various conditions.
5. Low Quiescent Current: Exhibits low standby current, which is beneficial for battery-powered applications.
6. Versatile Packaging: Available in the TO-220 and TO-263 packages, offering flexibility for different thermal and mechanical design requirements.
7. Ripple Rejection: Good performance in attenuating input voltage ripple to ensure a stable output.
These features make the LM2941S ideal for applications such as power supplies, automotive electronics, and other circuits requiring efficient voltage regulation.
Pinout
1. Input (Pin 1): Connects to the unregulated input voltage source.
2. Output (Pin 2): Provides the regulated output voltage.
3. Adjust (Pin 3): Used to set the output voltage when an adjustable version is used; typically connected to a resistor divider network.
4. Ground (Pin 4): The common ground for both the input and output.
5. Shutdown (Pin 5): Allows the regulator to be turned off by applying a high logic level, reducing the device's power consumption.
The LM2941S is designed for applications requiring high current and low dropout voltage, making it suitable for various electronics needing a stable power supply.