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LM2941LD/NOPB
+Lista de MateriaisIC REG LINEAR POS ADJ 1A 8WSON
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FabricanteNational Semiconductor
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Peça do Fabricante #LM2941LD/NOPB
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Ficha Técnica LM2941LD/NOPB DataSheet
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Pacote WSON-8
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Especificações
| Atributo | Valor |
| Package / Case | Bulk |
| Part Status | Active |
| 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 include a low dropout voltage (typical 0.5V at 1A), which allows for efficient power management, especially in low-voltage conditions. The regulator also provides protection mechanisms such as current limiting and thermal shutdown to ensure reliable operation. Additionally, it features a remote sense capability to maintain output voltage accuracy by compensating for voltage drops in the output line.
The LM2941LD/NOPB is commonly used in automotive, industrial, and consumer electronics where efficient linear regulation is needed. Its compact size and robust performance make it suitable for various applications that require stable and precise voltage regulation.
Equivalent
1. LT1085: A 3A LDO regulator from Analog Devices.
2. LM317: A popular adjustable voltage regulator.
3. MIC29300: A high-current LDO from Microchip.
4. NCP1117: A low-dropout positive regulator from ON Semiconductor.
5. TPS7A47: A high-precision LDO from Texas Instruments.
These alternatives vary in specifications, so ensure compatibility with your application's requirements.
Features
1. Adjustable Output Voltage: It supports an output voltage range of 5V to 20V.
2. Low Dropout Voltage: The device features a low dropout voltage of 0.5V at 1A, which makes it efficient for battery-powered systems.
3. Current Capability: It can deliver an output current of up to 1A.
4. Protection Features: It includes current limiting and thermal shutdown protection to prevent damage from overloads or overheating.
5. Low Quiescent Current: The quiescent current is low, enhancing its efficiency, especially in standby modes.
6. Stability: It is stable with a wide range of capacitive loads, which simplifies design considerations.
7. Wide Input Voltage Range: The device operates with input voltages from 6V to 26V.
8. Package Options: It is available in a TO-220 and TO-263 package, offering flexibility for different design requirements.
These features make the LM2941LD/NOPB suitable for various applications requiring efficient voltage regulation.
Pinout
1. Input (Pin 1): This is the voltage input pin where the unregulated input voltage is applied.
2. Output (Pin 2): This pin provides the regulated output voltage.
3. Adjust (Pin 3): This pin is used to set the output voltage. By connecting a resistor divider network between the output, adjust, and ground, you can set the desired output voltage.
4. Ground (Pin 4): This pin is connected to the system ground.
5. Shutdown (Pin 5): This pin is used to turn the regulator on and off. A low voltage on this pin shuts down the regulator, reducing the current draw to a very low level.
The LM2941LD/NOPB is known for its low dropout voltage, making it suitable for battery-powered devices where efficient power regulation is crucial.
Manufacturer
Application
1. Automotive Electronics: Used in vehicle power systems for maintaining stable voltage in the presence of varying input from the battery.
2. Industrial Equipment: Provides reliable voltage regulation for industrial control systems and sensors.
3. Consumer Electronics: Powers microprocessors and digital circuits in devices like laptops and tablets.
4. Communication Systems: Ensures stable power supply for RF modules and networking equipment.
5. Portable Devices: Supports battery-operated devices by providing efficient power conversion.
Its low dropout voltage and adjustable output make it suitable for applications demanding high performance and reliability.