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LM2940IMP-12
+Lista de MateriaisIC REG LINEAR 12V 1A SOT223-4
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FabricanteTexas Instruments
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Peça do Fabricante #LM2940IMP-12
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Pacote SOT-223-4
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Especificações
| Atributo | Valor |
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| ProductStatus | Obsolete |
| OutputConfiguration | Positive |
| OutputType | Fixed |
| NumberofRegulators | 1 |
| Voltage-Input(Max) | 26V |
| Voltage-Output(Min/Fixed) | 12V |
| VoltageDropout(Max) | 1V @ 1A |
| Current-Output | 1A |
| Current-Quiescent(Iq) | 10 mA |
| Current-Supply(Max) | 15 mA |
| PSRR | 66dB (120Hz) |
| ProtectionFeatures | Over Current, Over Temperature, Reverse Polarity, Short Circuit |
| OperatingTemperature | -40°C ~ 85°C |
| MountingType | Surface Mount |
| Package/Case | TO-261-4, TO-261AA |
Visão Geral
Description
The LM2940IMP-12 is a low dropout (LDO) voltage regulator designed to provide a stable 12V output with a maximum current of 1A. It is part of the LM2940 series, known for its low dropout voltage, typically around 0.5V at full load. This feature makes it suitable for applications where the input-output voltage differential is small. The device is equipped with features like short-circuit current limiting and thermal shutdown for enhanced protection against overcurrent and overheating conditions.
The LM2940IMP-12 is ideal for powering sensitive electronic components in applications such as automotive, industrial, and consumer electronics, where a reliable 12V supply is required. It comes in a compact TO-220 package, making it suitable for space-constrained environments. Its high PSRR (Power Supply Rejection Ratio) ensures minimal noise interference from the input power source. Additionally, the regulator's quiescent current is low, contributing to overall power efficiency. With its robust performance and protective features, the LM2940IMP-12 is a versatile choice for maintaining a consistent voltage supply in various electronic designs.
The LM2940IMP-12 is ideal for powering sensitive electronic components in applications such as automotive, industrial, and consumer electronics, where a reliable 12V supply is required. It comes in a compact TO-220 package, making it suitable for space-constrained environments. Its high PSRR (Power Supply Rejection Ratio) ensures minimal noise interference from the input power source. Additionally, the regulator's quiescent current is low, contributing to overall power efficiency. With its robust performance and protective features, the LM2940IMP-12 is a versatile choice for maintaining a consistent voltage supply in various electronic designs.
Equivalent
The LM2940IMP-12 is a low dropout voltage regulator. Equivalent products include:
1. MIC29300-12WT from Microchip Technology: 3A LDO regulator with similar voltage output.
2. LT1086CT-12 from Analog Devices: 1.5A positive adjustable LDO regulator.
3. MC33269D-12 from ON Semiconductor: 800mA low dropout regulator.
4. NCP1117ST12T3G from ON Semiconductor: 1A low dropout positive voltage regulator.
Always verify specifications and compatibility with your application before substituting.
1. MIC29300-12WT from Microchip Technology: 3A LDO regulator with similar voltage output.
2. LT1086CT-12 from Analog Devices: 1.5A positive adjustable LDO regulator.
3. MC33269D-12 from ON Semiconductor: 800mA low dropout regulator.
4. NCP1117ST12T3G from ON Semiconductor: 1A low dropout positive voltage regulator.
Always verify specifications and compatibility with your application before substituting.
Features
The LM2940IMP-12 is a low-dropout voltage regulator designed for applications requiring a stable output voltage with minimal input-output voltage differential. Key features include:
1. Output Voltage: Fixed at 12V.
2. Low Dropout Voltage: Typically 0.5V at full load, making it efficient for low voltage operations.
3. Output Current: Capable of supplying up to 1A.
4. Quiescent Current: Low quiescent current of about 10mA helps improve efficiency, especially in low power applications.
5. Input Voltage Range: Wide input voltage range of up to 26V.
6. Thermal Protection: Built-in thermal shutdown to prevent damage due to overheating.
7. Short Circuit Protection: Current limiting to safeguard against short circuits.
8. Reverse Polarity Protection: Prevents damage from accidental reverse voltage connection.
9. Stability: Requires only a 22µF output capacitor for stability, simplifying design.
10. Package: Available in a small SOT-223 package, which is suitable for space-constrained applications.
These features make the LM2940IMP-12 suitable for automotive, industrial, and consumer electronics where reliable voltage regulation is needed.
1. Output Voltage: Fixed at 12V.
2. Low Dropout Voltage: Typically 0.5V at full load, making it efficient for low voltage operations.
3. Output Current: Capable of supplying up to 1A.
4. Quiescent Current: Low quiescent current of about 10mA helps improve efficiency, especially in low power applications.
5. Input Voltage Range: Wide input voltage range of up to 26V.
6. Thermal Protection: Built-in thermal shutdown to prevent damage due to overheating.
7. Short Circuit Protection: Current limiting to safeguard against short circuits.
8. Reverse Polarity Protection: Prevents damage from accidental reverse voltage connection.
9. Stability: Requires only a 22µF output capacitor for stability, simplifying design.
10. Package: Available in a small SOT-223 package, which is suitable for space-constrained applications.
These features make the LM2940IMP-12 suitable for automotive, industrial, and consumer electronics where reliable voltage regulation is needed.
Pinout
The LM2940IMP-12 is a low dropout voltage regulator with a fixed output voltage of 12V. It typically comes in a SOT-223 package, which has 3 pins:
1. Input (Vin): This pin is where the input voltage is supplied. It should be higher than the desired output voltage to maintain regulation.
2. Ground (GND): The ground pin is the common reference point for the input and output voltages.
3. Output (Vout): This pin provides the regulated output voltage, which is fixed at 12V for the LM2940IMP-12.
The LM2940 series is known for its low dropout voltage, making it suitable for battery-operated devices. It provides a stable output with minimal input voltage headroom.
1. Input (Vin): This pin is where the input voltage is supplied. It should be higher than the desired output voltage to maintain regulation.
2. Ground (GND): The ground pin is the common reference point for the input and output voltages.
3. Output (Vout): This pin provides the regulated output voltage, which is fixed at 12V for the LM2940IMP-12.
The LM2940 series is known for its low dropout voltage, making it suitable for battery-operated devices. It provides a stable output with minimal input voltage headroom.
Manufacturer
The LM2940IMP-12 is manufactured by Texas Instruments. Texas Instruments (TI) is a global semiconductor company that designs and manufactures a wide range of integrated circuits, including analog and embedded processing chips. Headquartered in Dallas, Texas, the company is known for its innovations and contributions to the electronics industry. TI serves a variety of markets, including automotive, industrial, personal electronics, communications equipment, and enterprise systems. Their products are used in countless applications, from consumer electronics to complex industrial systems, and the company is a leader in the development of technologies that improve performance and efficiency in electronic devices.
Application
The LM2940IMP-12 is a low dropout (LDO) voltage regulator designed for various applications. Key areas include automotive electronics, where it provides stable voltage despite battery fluctuations, and consumer electronics, offering efficient power regulation for portable devices. It's also used in industrial equipment for reliable voltage regulation in harsh environments. Additionally, it can be found in telecommunications equipment, ensuring consistent power supply to sensitive components. Its low dropout voltage makes it suitable for battery-powered devices, maximizing battery life. Overall, its versatility and efficiency make it a popular choice for applications requiring reliable low-voltage regulation.
Package
The LM2940IMP-12 is a low dropout voltage regulator packaged in an 8-pin SOIC (Small Outline Integrated Circuit) surface-mount package. This package type is compact and suitable for applications where space-saving is important.
