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LD2981ABU33TR - STMicroelectronics

Description: Ultra low-drop voltage regulators with inhibit

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LD2981ABU33TR - STMicroelectronics PCB footprint - Other - Other - LD2981ABU33TR-2
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LD2981ABU33TR - STMicroelectronics  - 3D model - Other - LD2981ABU33TR-2
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LD2981ABU33TR Details

  • Manufacturer Part Number:

    LD2981ABU33TR

  • 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:

    4.3 V

  • JESD-30 Code:

    R-PSSO-F3

  • JESD-609 Code:

    e3

  • Length:

    4.5 mm

  • Line Regulation-Max:

    0.0124%

  • 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:

    3.383 V

  • Output Voltage1-Min:

    3.217 V

  • Output Voltage1-Nom:

    3.3 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) - annealed

  • Terminal Form:

    FLAT

  • Terminal Pitch:

    1.57 mm

  • Terminal Position:

    SINGLE

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

    30

  • Voltage Tolerance-Max:

    2.5%

  • Width:

    2.445 mm

LD2981ABU33TR Frequently Asked Questions (FAQs)

  • The maximum input voltage is 15V, but it's recommended to keep it below 12V for optimal performance and to prevent overheating.
  • To ensure stability, make sure to use a minimum output capacitance of 10uF, and a maximum ESR of 1 ohm. Also, keep the input and output capacitors close to the IC to minimize noise and oscillations.
  • The maximum output current is 1.5A, but it's recommended to keep it below 1A for optimal performance and to prevent overheating.
  • The output voltage can be adjusted by using a resistor divider network between the output and the ADJ pin. The output voltage is determined by the ratio of the resistors and the internal reference voltage (1.24V).
  • The EN (Enable) pin is used to turn the regulator on or off. When the EN pin is high, the regulator is enabled, and when it's low, the regulator is disabled.

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LD2981ABU33TR 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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