LM2931AZ-5

The LM2931AZ5 regulator provides a stable 5V output with a noise reduction of 80dB at 120Hz, making it ideal for sensitive applications
7,288 Effective Inventory

LM2931AZ-5

Effective Inventory7,288

The LM2931AZ5 regulator provides a stable 5V output with a noise reduction of 80dB at 120Hz, making it ideal for sensitive applications

  • Manufacturer Part # : LM2931AZ-5

  • Package/Case: TO-92

  • Brand: Texas Instruments

  • Product Categories : Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

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LM2931AZ-5 DataSheet
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Details

LM2931AZ5 is a low dropout voltage regulator with a fixed 5V output voltage. It features a maximum dropout voltage of 0.6V at 100mA load current, making it suitable for applications where a stable voltage supply is required even when the input voltage is close to the output voltage. The device has a low quiescent current of 10mA, making it suitable for battery-powered applications where power consumption is critical. It also has a maximum input voltage of 26V, ensuring compatibility with a wide range of input sources. LM2931AZ5 has a built-in thermal shutdown and current limit protection feature, ensuring safe operation under fault conditions. Additionally, it has a wide operating temperature range of -40°C to 125°C, making it suitable for use in harsh environments. The device is available in a TO-92 package, making it easy to integrate into various electronic circuits.

Key Features

  • Low dropout voltage regulator
  • Output voltage of 5V
  • High output voltage accuracy
  • Low quiescent current of 10mA
  • Built-in over-temperature protection
  • Short-circuit protection
  • Wide input voltage range of 4V to 40V
  • Available in a TO-92 package

    • Application

  • The LM2931AZ5 is commonly used in low dropout voltage regulator applications in various electronic devices such as computers, mobile phones, and automotive systems
  • It is also suitable for battery-powered applications due to its low quiescent current and high accuracy

    • 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.

    Preliminary Specification LM2931AZ-5 PDF Download

    FAQs

    What is LM2931AZ-5?

    The LM2931AZ-5 is a low dropout voltage regulator designed by Texas Instruments. It is a precision, fixed-output voltage regulator capable of delivering up to 100 mA of output current. The device is suitable for applications requiring a stable and regulated power supply, such as battery-powered systems, instrumentation, and consumer electronics.

    How Does LM2931AZ-5 Work?

    The LM2931AZ-5 works by regulating an input voltage to a fixed output voltage with low dropout voltage. It is designed to provide a stable voltage output even when the input voltage is only slightly higher than the desired output voltage. The regulator features thermal shutdown and current limiting to protect the device and the load under fault conditions.

    How Many Pins does LM2931AZ-5 have and What are the Functions of the Pinout Configuration?

    The LM2931AZ-5 is housed in a 3-pin TO-92 (Transistor Outline) package. The pinout configuration includes:

    • Input: Input voltage pin.
    • Ground: Ground connection.
    • Output: Regulated output voltage pin.

    What are the Pros and Cons of LM2931AZ-5?

    Pros:

    • Low Dropout Voltage: Maintains regulation even with a small voltage differential between input and output.
    • Low Quiescent Current: Operates with low standby current, suitable for battery-powered applications.
    • Thermal Shutdown: Includes thermal shutdown protection for increased reliability.
    • Simple Design: Requires minimal external components for operation, simplifying circuit design.

    Cons:

    • Output Current Limit: Limited to 100 mA output current, may not be suitable for high-power applications.
    • TO-92 Package: The TO-92 package may not dissipate heat as effectively as other packages in high-power applications.

    Are There Any Equivalents/Alternatives to LM2931AZ-5 for Recommendation?

    • The LM2940 from Texas Instruments is a similar low dropout voltage regulator with different fixed output voltage options.
    • Alternatives to the LM2931AZ-5 include the MCP1700 from Microchip Technology and the L4940 from STMicroelectronics.

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