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LD2981ABU50TR - STMicroelectronics

Description: LD2981ABU50TR, Low Dropout Voltage Regulator, 0.1A, 5 V ±0.75%, -3 → 16 Vin, 4-Pin SOT-89

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LD2981ABU50TR - STMicroelectronics PCB footprint - Other - Other - LD2981ABU50TR-2
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LD2981ABU50TR - STMicroelectronics  - 3D model - Other - LD2981ABU50TR-2
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LD2981ABU50TR Details

  • Manufacturer Part Number:

    LD2981ABU50TR

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOT-89

  • Package Description:

    SOT-89, 3 PIN

  • Pin Count:

    3

  • Country Of Origin:

    Mainland China

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    6.4

  • Adjustability:

    FIXED

  • Dropout Voltage1-Max:

    0.375 V

  • Dropout Voltage1-Nom:

    0.18 V

  • Input Voltage Absolute-Max:

    16 V

  • Input Voltage-Max:

    16 V

  • Input Voltage-Min:

    6 V

  • JESD-30 Code:

    R-PSSO-F3

  • JESD-609 Code:

    e3

  • Length:

    4.5 mm

  • Line Regulation-Max:

    0.016%

  • 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

  • Output Current1-Max:

    0.1 A

  • Output Voltage1-Max:

    5.125 V

  • Output Voltage1-Min:

    4.875 V

  • Output Voltage1-Nom:

    5 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    LSOF

  • Package Equivalence Code:

    TO-243

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, LOW PROFILE

  • Packing Method:

    TR

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Regulator Type:

    FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR

  • Seated Height-Max:

    1.6 mm

  • Surface Mount:

    YES

  • Technology:

    BIPOLAR

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    FLAT

  • Terminal Pitch:

    1.5 mm

  • Terminal Position:

    SINGLE

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

    30

  • Voltage Tolerance-Max:

    2.5%

  • Width:

    2.445 mm

LD2981ABU50TR Frequently Asked Questions (FAQs)

  • The maximum input voltage is 26V, but it's recommended to keep it below 24V for reliable operation.
  • To ensure stability, make sure to use a minimum output capacitance of 10uF, and a maximum ESR of 1 ohm. Also, use a 1uF capacitor on the EN pin to ground.
  • The EN (Enable) pin is used to turn the regulator on or off. Connect it to VIN to enable the regulator, or to GND to disable it. You can also use it to implement a power-saving mode.
  • The output voltage is fixed at 5V, but you can adjust it by using an external resistor divider network on the FB (Feedback) pin.
  • The maximum output current is 1.5A, but it's recommended to keep it below 1A for reliable operation and to prevent overheating.

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LD2981ABU50TR Overview

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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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