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LM3940IMP-3.3 - Texas Instruments

Description: Low Dropout Regulator

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LM3940IMP-3.3 - Texas Instruments PCB footprint - Other - Other - SOT230P696X180-4N
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LM3940IMP-3.3 - Texas Instruments  - 3D model - Other - SOT230P696X180-4N
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LM3940IMP-3.3 Details

  • Manufacturer Part Number:

    LM3940IMP-3.3

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOT-223

  • Package Description:

    SOT-223, 3 PIN

  • Pin Count:

    3

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Date Of Intro:

    1998-04-01

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Adjustability:

    FIXED

  • Dropout Voltage1-Max:

    1 V

  • Dropout Voltage1-Nom:

    0.31 V

  • Input Voltage Absolute-Max:

    7.5 V

  • Input Voltage-Max:

    5.5 V

  • Input Voltage-Min:

    4.5 V

  • JESD-30 Code:

    R-PDSO-G4

  • JESD-609 Code:

    e0

  • Length:

    6.5 mm

  • Line Regulation-Max:

    0.04%

  • Load Regulation-Max:

    0.08%

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    4

  • Operating Temperature TJ-Max:

    125 °C

  • Operating Temperature TJ-Min:

    -40 °C

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current1-Max:

    1 A

  • Output Voltage1-Max:

    3.47 V

  • Output Voltage1-Min:

    3.13 V

  • Output Voltage1-Nom:

    3.3 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOT-223

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Packing Method:

    TR

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Regulator Type:

    FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR

  • Seated Height-Max:

    1.8 mm

  • Surface Mount:

    YES

  • Technology:

    BIPOLAR

  • Terminal Finish:

    Tin/Lead (Sn/Pb)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    2.3 mm

  • Terminal Position:

    DUAL

  • Time@Peak Reflow Temperature-Max (s):

    NOT SPECIFIED

  • Voltage Tolerance-Max:

    5.2%

  • Width:

    3.56 mm

LM3940IMP-3.3 Frequently Asked Questions (FAQs)

  • The maximum input voltage is 15V, but it's recommended to keep it below 12V for reliable operation.
  • Use a 10uF capacitor on the input pin and a 22uF capacitor on the output pin, and ensure the PCB layout is well-designed to minimize noise and EMI.
  • The LM3940IMP-3.3 is rated for operation up to 125°C, but thermal derating applies above 85°C. Ensure proper heat sinking and thermal management to prevent overheating.
  • The LM3940IMP-3.3 can supply up to 1A of output current, but it's recommended to keep it below 500mA for reliable operation and to prevent overheating.
  • Yes, the LM3940IMP-3.3 is a low-dropout regulator (LDO) with a dropout voltage of around 1.5V, making it suitable for battery-powered applications.

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LM3940IMP-3.3 Overview

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About Texas Instruments

Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.

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