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LM2940CSX-5.0
+物料清單IC REG LINEAR 5V 1A TO263
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製造商德州儀器
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製造商部分 #LM2940CSX-5.0
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有存貨4324
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規格
| 屬性 | 價值 |
| PartStatus | Not For New Designs |
| OutputConfiguration | Positive |
| OutputType | Fixed |
| NumberofRegulators | 1 |
| Voltage-Input(Max) | 26V |
| Voltage-Output(Min/Fixed) | 5V |
| VoltageDropout(Max) | 0.8V @ 1A |
| Current-Output | 1A |
| Current-Quiescent(Iq) | 10 mA |
| PSRR | 64dB (120Hz) |
| ProtectionFeatures | Over Current, Over Temperature, Reverse Polarity, Short Circuit |
| OperatingTemperature | 0°C ~ 125°C |
| MountingType | Surface Mount |
| Package/Case | TO-263-4, D2PAK (3 Leads + Tab), TO-263AA |
| SupplierDevicePackage | TO-263 (DDPAK-3) |
| BaseProductNumber | LM2940 |
| Current-Supply(Max) | 15 mA |
概述
Description
The LM2940CSX-5.0 is a low-dropout (LDO) voltage regulator designed to provide a stable output voltage of 5.0V with an output current capability of up to 1A. It features a dropout voltage of around 0.5V at full load, which makes it suitable for battery-powered applications where efficient power management is crucial.
The regulator is equipped with built-in thermal shutdown and current limiting to protect against overload conditions. Its low output noise and high ripple rejection make it ideal for sensitive electronic devices.
The LM2940CSX-5.0 is offered in a TO-220 package, facilitating effective heat dissipation, and comes with standard pin configurations for easy integration into various circuit designs.
Overall, it is widely used in automotive, consumer electronics, and industrial applications where reliable voltage regulation is essential.
The regulator is equipped with built-in thermal shutdown and current limiting to protect against overload conditions. Its low output noise and high ripple rejection make it ideal for sensitive electronic devices.
The LM2940CSX-5.0 is offered in a TO-220 package, facilitating effective heat dissipation, and comes with standard pin configurations for easy integration into various circuit designs.
Overall, it is widely used in automotive, consumer electronics, and industrial applications where reliable voltage regulation is essential.
Equivalent
Equivalent products to the LM2940CSX-5.0 voltage regulator include the LP2950-5.0, MIC2940, and LT1085-5.0. These alternatives provide similar low dropout voltage regulation and are suitable for 5V output applications. Always verify specifications such as current rating and thermal performance before substitution.
Features
The LM2940CSX-5.0 is a low dropout (LDO) voltage regulator designed to provide a stable 5V output with a maximum load current of 1A. Key features include:
1. Low Dropout Voltage: Typically only 0.5V at full load, allowing operation with minimal input voltage above the output level.
2. Current Limiting: Provides inherent protection against overload conditions.
3. Thermal Shutdown: Integrated thermal protection prevents damage under overheating conditions.
4. High Ripple Rejection: Offers excellent power supply rejection, ensuring stable output even in noisy environments.
5. Wide Input Voltage Range: Operates with input voltages from 7V to 26V, providing versatility in various applications.
6. Fast Transient Response: Ensures stable output during rapid load changes.
7. Reverse Polarity Protection: Prevents damage if the input voltage is connected incorrectly.
8. Compact Package: Available in a TO-220 package, suitable for space-constrained designs.
These features make the LM2940CSX-5.0 ideal for applications requiring reliable and efficient regulation of 5V power supplies.
1. Low Dropout Voltage: Typically only 0.5V at full load, allowing operation with minimal input voltage above the output level.
2. Current Limiting: Provides inherent protection against overload conditions.
3. Thermal Shutdown: Integrated thermal protection prevents damage under overheating conditions.
4. High Ripple Rejection: Offers excellent power supply rejection, ensuring stable output even in noisy environments.
5. Wide Input Voltage Range: Operates with input voltages from 7V to 26V, providing versatility in various applications.
6. Fast Transient Response: Ensures stable output during rapid load changes.
7. Reverse Polarity Protection: Prevents damage if the input voltage is connected incorrectly.
8. Compact Package: Available in a TO-220 package, suitable for space-constrained designs.
These features make the LM2940CSX-5.0 ideal for applications requiring reliable and efficient regulation of 5V power supplies.
Pinout
The LM2940CSX-5.0 is a low dropout (LDO) voltage regulator with a pin count of 5. Its primary function is to provide a stable output voltage of 5.0V with a maximum output current of 1A. The pin configuration is as follows:
1. Input (Vin): This pin connects to the input voltage source.
2. GND (Ground): This pin is connected to the ground reference.
3. Output (Vout): This pin delivers the regulated 5.0V output.
4. NC (No Connection): This pin is not connected internally and can be left unconnected.
5. Tab (Thermal Pad): The exposed pad serves as a heat sink and should be connected to ground for thermal management.
The LM2940 is designed to operate with very low dropout voltage, making it suitable for applications where the input voltage is close to the output voltage.
1. Input (Vin): This pin connects to the input voltage source.
2. GND (Ground): This pin is connected to the ground reference.
3. Output (Vout): This pin delivers the regulated 5.0V output.
4. NC (No Connection): This pin is not connected internally and can be left unconnected.
5. Tab (Thermal Pad): The exposed pad serves as a heat sink and should be connected to ground for thermal management.
The LM2940 is designed to operate with very low dropout voltage, making it suitable for applications where the input voltage is close to the output voltage.
Manufacturer
The LM2940CSX-5.0 is manufactured by Texas Instruments (TI), a prominent American technology company. Texas Instruments is known for designing and producing semiconductors and various integrated circuits. The company specializes in analog and embedded processing technologies, serving a wide range of industries, including automotive, industrial, communications, and consumer electronics.
Founded in 1930 and headquartered in Dallas, Texas, TI is recognized for its innovation in the field of electronics and has a significant presence in the global semiconductor market. The LM2940CSX-5.0 is a low-dropout (LDO) voltage regulator, specifically designed to provide a stable output voltage of 5.0V, which is crucial for powering sensitive electronic components with low noise and high efficiency.
Overall, Texas Instruments plays a vital role in advancing technology through its various products and solutions, contributing to the development of modern electronics.
Founded in 1930 and headquartered in Dallas, Texas, TI is recognized for its innovation in the field of electronics and has a significant presence in the global semiconductor market. The LM2940CSX-5.0 is a low-dropout (LDO) voltage regulator, specifically designed to provide a stable output voltage of 5.0V, which is crucial for powering sensitive electronic components with low noise and high efficiency.
Overall, Texas Instruments plays a vital role in advancing technology through its various products and solutions, contributing to the development of modern electronics.
Application
The LM2940CSX-5.0 is a low-dropout (LDO) voltage regulator primarily used in applications that require stable and low-noise power supply. Common application areas include:
1. Consumer Electronics: Powering devices like audio equipment, cameras, and other portable electronics.
2. Automotive: Supplying power to automotive sensors, microcontrollers, and infotainment systems.
3. Telecommunications: Used in modems, routers, and other communication devices.
4. Industrial Equipment: Providing regulated voltage to industrial controls and automation systems.
5. Battery-Powered Devices: Ensuring efficient power management in battery-operated applications.
It is suitable for applications requiring a 5V output with good transient response.
1. Consumer Electronics: Powering devices like audio equipment, cameras, and other portable electronics.
2. Automotive: Supplying power to automotive sensors, microcontrollers, and infotainment systems.
3. Telecommunications: Used in modems, routers, and other communication devices.
4. Industrial Equipment: Providing regulated voltage to industrial controls and automation systems.
5. Battery-Powered Devices: Ensuring efficient power management in battery-operated applications.
It is suitable for applications requiring a 5V output with good transient response.
Package
The LM2940CSX-5.0 is packaged in a TO-220 form factor. This package type features a metal tab for heat sinking, allowing efficient thermal management in applications requiring a low dropout voltage regulator.
