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LM337KTTR - Texas Instruments

Description: Linear Voltage Regulator IC Negative Adjustable 1 Output 1.5A TO-263 (DDPAK-3) , 37V , 77dB (120Hz) , 0°C ~ 125°C

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PCB Footprints
LM337KTTR - Texas Instruments PCB footprint - Other - Other - KTT (R-PSFM-G3)_2026
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LM337KTTR - Texas Instruments  - 3D model - Other - KTT (R-PSFM-G3)_2026
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LM337KTTR Details

  • Manufacturer Part Number:

    LM337KTTR

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    D2PAK

  • Package Description:

    TO-263-3

  • Pin Count:

    4

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Adjustability:

    ADJUSTABLE

  • Dropout Voltage1-Nom:

    2 V

  • Input Voltage-Max:

    3 V

  • Input Voltage-Min:

    40 V

  • Input-Output Voltage Differential-Max:

    40 V

  • Input-Output Voltage Differential-Min:

    3 V

  • JESD-30 Code:

    R-PSSO-G3

  • JESD-609 Code:

    e3

  • Length:

    10.16 mm

  • Line Regulation-Max (%/V):

    0.07

  • Load Regulation-Max(%):

    1.5%

  • Moisture Sensitivity Level:

    3

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    3

  • Operating Temperature TJ-Max:

    125 °C

  • Output Current1-Max:

    1.5 A

  • Output Voltage1-Max:

    37 V

  • Output Voltage1-Min:

    1.2 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TO-263

  • Package Equivalence Code:

    SMSIP3H,.55TB

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Packing Method:

    TR

  • Peak Reflow Temperature (Cel):

    245

  • Qualification Status:

    Not Qualified

  • Regulator Type:

    ADJUSTABLE NEGATIVE SINGLE OUTPUT STANDARD REGULATOR

  • Seated Height-Max:

    4.83 mm

  • Surface Mount:

    YES

  • Technology:

    BIPOLAR

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    SINGLE

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

    30

  • Voltage Tolerance-Max:

    2.4%

  • Width:

    9.017 mm

LM337KTTR Frequently Asked Questions (FAQs)

  • The maximum input voltage for the LM337KTTR is 40V. Exceeding this voltage can cause damage to the device.
  • To ensure a stable output voltage, make sure to use a minimum of 10uF capacitor at the output and a minimum of 0.1uF capacitor at the input. Also, ensure that the input voltage is at least 2V higher than the output voltage.
  • The LM337KTTR requires a minimum load current of 3.5mA to regulate properly. If the load current is less than this, the output voltage may not be regulated accurately.
  • The LM337KTTR is rated for operation up to 125°C. However, the device's performance and reliability may degrade at high temperatures. It's recommended to use a heat sink and ensure good thermal design to keep the device within its operating temperature range.
  • To protect the LM337KTTR from input voltage transients, use a TVS (Transient Voltage Suppressor) diode or a zener diode at the input to clamp the voltage and prevent damage to the device.

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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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