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L4931ABDT33-TR - STMicroelectronics

Description: LDO Regulator 3.3V 0.25A DPAK L4931ABDT33-TR, Low Dropout Voltage Regulator, 0.25A, 3.3 V ±1%, 3-Pin DPAK, -40°C to 125°C

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L4931ABDT33-TR - STMicroelectronics PCB footprint - Other - Other - DPAK_2026-1.7
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L4931ABDT33-TR - STMicroelectronics  - 3D model - Other - DPAK_2026-1.7
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L4931ABDT33-TR Details

  • Manufacturer Part Number:

    L4931ABDT33-TR

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    TO-252

  • Pin Count:

    3

  • Country Of Origin:

    Mainland China

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    12 Weeks

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    6.2

  • Adjustability:

    FIXED

  • Dropout Voltage1-Max:

    0.8 V

  • Dropout Voltage1-Nom:

    0.4 V

  • Input Voltage Absolute-Max:

    20 V

  • Input Voltage-Max:

    20 V

  • Input Voltage-Min:

    4 V

  • JESD-30 Code:

    R-PSSO-G2

  • JESD-609 Code:

    e3

  • Length:

    6.5 mm

  • Line Regulation-Max:

    0.015%

  • Load Regulation-Max:

    0.015%

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    2

  • Operating Temperature TJ-Max:

    125 °C

  • Operating Temperature TJ-Min:

    -40 °C

  • Output Current1-Max:

    0.25 A

  • Output Voltage1-Max:

    3.366 V

  • Output Voltage1-Min:

    3.234 V

  • Output Voltage1-Nom:

    3.3 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TO-252

  • Package Equivalence Code:

    SMSIP3H,.38,90TB

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, HEAT SINK/SLUG

  • Packing Method:

    TR

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Regulator Type:

    FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR

  • Seated Height-Max:

    2.63 mm

  • Surface Mount:

    YES

  • Technology:

    BIPOLAR

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    2.28 mm

  • Terminal Position:

    SINGLE

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

    30

  • Voltage Tolerance-Max:

    2%

  • Width:

    6.1 mm

L4931ABDT33-TR Frequently Asked Questions (FAQs)

  • A good PCB layout for optimal thermal performance would be to have a large copper area connected to the thermal pad (exposed die attach) on the bottom of the package. This copper area should be connected to a solid ground plane to dissipate heat efficiently.
  • To ensure a stable and regulated output voltage, make sure to decouple the input and output with suitable capacitors, and ensure the input voltage is within the recommended range. Also, ensure the output capacitor is of sufficient value and type to maintain stability.
  • The maximum input voltage that can be applied to the L4931ABDT33-TR is 15V, as specified in the datasheet. Exceeding this voltage may damage the device.
  • The L4931ABDT33-TR is rated for operation up to 125°C. However, the device's performance and reliability may degrade at high temperatures. It's essential to consider the thermal design and heat dissipation in high-temperature applications.
  • To protect the L4931ABDT33-TR from input voltage surges and spikes, consider adding a transient voltage suppressor (TVS) or a voltage clamp diode at the input. This will help absorb or clamp voltage transients and prevent damage to the device.

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About STMicroelectronics

STMicroelectronics (ST) is a global semiconductor company that designs, manufactures, and markets a broad range of integrated circuits (ICs), discrete devices, and other electronic components. STMicroelectronics offers a diverse portfolio of semiconductor products covering a wide range of applications and industries. Their product categories include microcontrollers, analog and mixed-signal ICs, MEMS (Micro-Electro-Mechanical Systems) sensors, power management ICs, RF (Radio Frequency) transceivers, aut

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Part Image L4931ABDT33 STMicroelectronics

Fixed Positive LDO Regulator, 3.3V, 0.8V Dropout, BIPolar, PSSO2