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LM2937ET-12 - Texas Instruments

Description: IC, LDO VOLT REG, 12V, 0.5A

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PCB Footprints
LM2937ET-12 - Texas Instruments PCB footprint - Other - Other - TO254P470X1016X2222-3P
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3D Models
LM2937ET-12 - Texas Instruments  - 3D model - Other - TO254P470X1016X2222-3P
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LM2937ET-12 Details

  • Manufacturer Part Number:

    LM2937ET-12

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SFM

  • Package Description:

    PLASTIC, TO-220, 3 PIN

  • Pin Count:

    3

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Date Of Intro:

    1993-01-01

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Adjustability:

    FIXED

  • Dropout Voltage1-Max:

    1 V

  • Dropout Voltage1-Nom:

    0.5 V

  • Input Voltage Absolute-Max:

    26 V

  • Input Voltage-Max:

    26 V

  • Input Voltage-Min:

    14 V

  • JESD-30 Code:

    R-PSFM-T3

  • JESD-609 Code:

    e0

  • Length:

    14.986 mm

  • Line Regulation-Max:

    0.12%

  • Load Regulation-Max:

    0.12%

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    3

  • 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:

    0.5 A

  • Output Voltage1-Max:

    12.6 V

  • Output Voltage1-Min:

    11.4 V

  • Output Voltage1-Nom:

    12 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TO-220

  • Package Equivalence Code:

    SIP3,.1TB

  • Package Shape:

    RECTANGULAR

  • Package Style:

    FLANGE MOUNT

  • Packing Method:

    TUBE

  • Peak Reflow Temperature (Cel):

    NOT APPLICABLE

  • Qualification Status:

    Not Qualified

  • Regulator Type:

    FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR

  • Seated Height-Max:

    4.7 mm

  • Surface Mount:

    NO

  • Technology:

    BIPOLAR

  • Terminal Finish:

    Tin/Lead (Sn/Pb)

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    SINGLE

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

    NOT APPLICABLE

  • Voltage Tolerance-Max:

    5%

  • Width:

    10.16 mm

LM2937ET-12 Frequently Asked Questions (FAQs)

  • The maximum input voltage that can be applied to the LM2937ET-12 is 26V, but it's recommended to keep it below 24V for reliable operation.
  • While the LM2937ET-12 can handle up to 1A of output current, it's not recommended for high-current applications due to thermal limitations. For high-current applications, consider using a heat sink or a more suitable voltage regulator.
  • To ensure the output voltage is stable and accurate, make sure to use a suitable input capacitor (e.g., 10uF) and output capacitor (e.g., 22uF) as recommended in the datasheet. Additionally, keep the input voltage stable and within the recommended range.
  • No, the LM2937ET-12 is a linear voltage regulator and not suitable for switching power supply designs. It's designed for low-dropout, low-noise applications where a high degree of line and load regulation is required.
  • The typical dropout voltage of the LM2937ET-12 is around 1.2V, which means the input voltage should be at least 1.2V higher than the desired output voltage for proper regulation.

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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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