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LM2940IMP-5
LM2940IMP-5 is a 5V low dropout voltage regulator chip.
LM2940IMP-5
LM2940IMP-5 is a 5V low dropout voltage regulator chip.
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LM2940IMP-5 DataSheet
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Details
The LM2940IMP-5 is a low dropout voltage regulator that can supply up to 1A of output current. It has a fixed output voltage of 5V and is designed to be used in various applications including automotive, industrial, and portable devices. The regulator has a dropout voltage of 0.5V at 1A load current, making it suitable for applications where input voltage is close to the desired output voltage.The LM2940IMP-5 is housed in a TO-220 package and has built-in overcurrent and thermal protection features to ensure the safe operation of the device. It has an input voltage range of 6V to 26V, making it suitable for use with a wide range of input sources. The device also has a low quiescent current of 10mA, making it suitable for battery-powered applications where power consumption is a concern.
Key Features
- Low dropout voltage (0.5V)
- Output current up to 1A
- Thermal shutdown protection
- Short circuit protection
- Overtemperature protection
- Available in TO-220 and TO-263 packages
Application
- Low dropout voltage regulator
- Power management applications in consumer electronics
- Battery-powered devices
- Portable equipment
- Instrumentation
- Automotive applications
- Industrial control systems
- Medical devices
- Telecommunications equipment
- Audio equipment
Datasheet PDF
Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.
FAQs
What is LM2940IMP-5?
The LM2940IMP-5 is a low dropout voltage regulator designed by Texas Instruments. It is capable of providing a regulated output voltage with a dropout voltage as low as 0.5V, making it suitable for applications requiring stable power supply voltages close to the input voltage.
How Does LM2940IMP-5 Work?
The LM2940IMP-5 operates as a linear voltage regulator that maintains a constant output voltage despite variations in the input voltage and load currents. It uses a PNP pass transistor to regulate the output voltage and achieve low dropout performance. The regulator can be used in various electronic devices to ensure reliable and stable power supply voltages.
How Many Pins does LM2940IMP-5 have and What are the Functions of the Pinout Configuration?
The LM2940IMP-5 is housed in a 5-lead SOT-223 (Small Outline Transistor) package. The pinout configuration includes:
- VIN: Input voltage pin.
- VOUT: Regulated output voltage pin.
- ADJ/GND: Adjust pin for voltage trimming or ground connection.
- NC: No connection pin.
What are the Pros and Cons of LM2940IMP-5?
Pros:
- Low Dropout Voltage: Provides a stable output voltage even with minimal input-output voltage differentials.
- Thermal Protection: Includes thermal shutdown and current limiting features for overtemperature protection.
- Compact Package: The SOT-223 package offers a space-efficient solution for compact designs.
Cons:
- Limited Current Capacity: May not be suitable for high current applications.
- Heat Dissipation: Requires adequate heat sinking for efficient thermal management.
Are There Any Equivalents/Alternatives to LM2940IMP-5 for Recommendation?
- The LM2937 from Texas Instruments is a similar low dropout regulator with different voltage options.
- Alternatives to the LM2940IMP-5 include the MCP1702 from Microchip Technology and the L4940V5 from STMicroelectronics.
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