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LM2940CT-5.0
+Lista de MateriaisIC REG LINEAR 5V 1A TO220-3
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FabricanteTexas Instruments
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Peça do Fabricante #LM2940CT-5.0
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Pacote TO-220-3
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Especificações
| Atributo | Valor |
| Package | Bulk,Tube |
| ProductStatus | Not For New Designs |
| OutputConfiguration | Positive |
| OutputType | Fixed |
| NumberofRegulators | 1 |
| Voltage-Input(Max) | 26V |
| Voltage-Output(Min/Fixed) | 5V |
| VoltageDropout(Max) | 1V @ 1A |
| Current-Output | 1A |
| Current-Quiescent(Iq) | 15 mA |
| Current-Supply(Max) | 60 mA |
| PSRR | 72dB (120Hz) |
| ProtectionFeatures | Over Temperature, Reverse Polarity, Short Circuit |
| OperatingTemperature | 0°C ~ 125°C |
| MountingType | Through Hole |
| Package/Case | TO-220-3 |
Visão Geral
Description
The LM2940CT-5.0 is a low dropout (LDO) positive voltage regulator integrated circuit designed to maintain a steady output voltage of 5.0 volts. It is part of the LM2940 series, known for its low dropout voltage, which is typically around 0.5 volts at full load. This makes it suitable for applications where there is limited headroom between input and output voltages.
The LM2940CT-5.0 can deliver up to 1 ampere of output current while maintaining strong line and load regulation. Its design includes features such as current limiting, thermal protection, and reverse-battery protection, enhancing its reliability in various operating conditions. The device is commonly used in automotive, industrial, and consumer electronics to power microcontrollers, sensors, and other 5V logic circuits.
Housed in a TO-220 package, the LM2940CT-5.0 is easy to mount and integrate into existing designs. Its robust performance and protective features make it a versatile choice for ensuring stable voltage supply in a wide range of electronic applications.
The LM2940CT-5.0 can deliver up to 1 ampere of output current while maintaining strong line and load regulation. Its design includes features such as current limiting, thermal protection, and reverse-battery protection, enhancing its reliability in various operating conditions. The device is commonly used in automotive, industrial, and consumer electronics to power microcontrollers, sensors, and other 5V logic circuits.
Housed in a TO-220 package, the LM2940CT-5.0 is easy to mount and integrate into existing designs. Its robust performance and protective features make it a versatile choice for ensuring stable voltage supply in a wide range of electronic applications.
Equivalent
The LM2940CT-5.0 is a low dropout voltage regulator. Equivalent products include the LT1086-5, MIC29300-5.0, and the LM1084IT-5.0. These alternatives offer similar features such as low dropout voltage, fixed 5V output, and comparable current ratings, although exact specifications may vary slightly. Always verify the datasheets to ensure compatibility with your application.
Features
The LM2940CT-5.0 is a low-dropout voltage regulator with the following key features:
1. Output Voltage: Fixed at 5.0V.
2. Low Dropout Voltage: Typically around 0.5V at 1A load current, allowing efficient regulation with minimal voltage drop.
3. Current Capability: Can supply up to 1A of output current, suitable for various applications.
4. Quiescent Current: Low quiescent current of approximately 10mA, which is beneficial for battery-powered devices.
5. Stability: Requires only a small output capacitor for stability, making it easy to use in circuit designs.
6. Thermal and Short-Circuit Protection: Includes built-in protection features to safeguard against overheating and short-circuit conditions.
7. Reverse Battery Protection: Prevents damage if the power supply is connected backwards.
8. Operating Temperature Range: Typically operates in the range of -40°C to +125°C, suitable for industrial and automotive applications.
9. Package: Available in a TO-220 package for easy mounting and heat dissipation.
These features make the LM2940CT-5.0 a reliable choice for applications needing a stable 5V output with low dropout performance.
1. Output Voltage: Fixed at 5.0V.
2. Low Dropout Voltage: Typically around 0.5V at 1A load current, allowing efficient regulation with minimal voltage drop.
3. Current Capability: Can supply up to 1A of output current, suitable for various applications.
4. Quiescent Current: Low quiescent current of approximately 10mA, which is beneficial for battery-powered devices.
5. Stability: Requires only a small output capacitor for stability, making it easy to use in circuit designs.
6. Thermal and Short-Circuit Protection: Includes built-in protection features to safeguard against overheating and short-circuit conditions.
7. Reverse Battery Protection: Prevents damage if the power supply is connected backwards.
8. Operating Temperature Range: Typically operates in the range of -40°C to +125°C, suitable for industrial and automotive applications.
9. Package: Available in a TO-220 package for easy mounting and heat dissipation.
These features make the LM2940CT-5.0 a reliable choice for applications needing a stable 5V output with low dropout performance.
Pinout
The LM2940CT-5.0 is a voltage regulator with a pin count of three. It is designed to provide a fixed output voltage of 5.0V with a maximum output current of 1A. The three pins are:
1. Input (Pin 1): This pin receives the input voltage, which should be higher than the desired output voltage to ensure proper regulation.
2. Ground (Pin 2): This is the common ground reference for both the input and output voltages.
3. Output (Pin 3): This pin provides the regulated 5.0V output voltage.
The LM2940 series is known for its low dropout voltage, making it efficient for applications where input and output voltages are close. It also includes features like short-circuit protection and thermal shutdown to enhance reliability.
1. Input (Pin 1): This pin receives the input voltage, which should be higher than the desired output voltage to ensure proper regulation.
2. Ground (Pin 2): This is the common ground reference for both the input and output voltages.
3. Output (Pin 3): This pin provides the regulated 5.0V output voltage.
The LM2940 series is known for its low dropout voltage, making it efficient for applications where input and output voltages are close. It also includes features like short-circuit protection and thermal shutdown to enhance reliability.
Manufacturer
The LM2940CT-5.0 is a low dropout voltage regulator manufactured by Texas Instruments. Texas Instruments (TI) is a global semiconductor company known for designing and manufacturing a wide array of integrated circuits and semiconductor devices. The company is headquartered in Dallas, Texas, and it serves a broad range of industries including automotive, industrial, personal electronics, communications equipment, and enterprise systems. TI is highly regarded for its innovation in analog and embedded processing technologies.
Application
The LM2940CT-5.0 is a voltage regulator commonly used in applications requiring a stable 5V output. Its low dropout voltage makes it suitable for battery-powered devices, ensuring efficiency even as the battery voltage drops. It's often used in automotive electronics, portable gadgets, and embedded systems. The regulator supports microcontrollers, sensors, and communication modules by providing a consistent voltage supply, essential for proper operation. Additionally, its protection features, such as thermal shutdown and current limiting, make it reliable for sensitive and critical applications.
Package
The LM2940CT-5.0 is a positive voltage regulator with a fixed output of 5.0 volts. It is typically housed in a TO-220 package, which is a standard three-pin configuration used for power semiconductors. This package type allows for efficient heat dissipation, making it suitable for various applications requiring stable voltage regulation.
