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LD2981CM30TR - STMicroelectronics

Description: Ultra low-drop voltage regulators with inhibit

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LD2981CM30TR - STMicroelectronics - PCB symbol
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PCB Footprints
LD2981CM30TR - STMicroelectronics PCB footprint - SOT23 (5-Pin) - SOT23 (5-Pin) - SOT23-5L package outline
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LD2981CM30TR - STMicroelectronics - 3D model - SOT23 (5-Pin) - SOT23-5L package outline
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LD2981CM30TR Details

  • Manufacturer Part Number:

    LD2981CM30TR

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOT-23

  • Package Description:

    SOT-23, 5 PIN

  • Pin Count:

    5

  • Country Of Origin:

    Mainland China

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    12 Weeks

  • 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 V

  • JESD-30 Code:

    R-PDSO-G5

  • JESD-609 Code:

    e4

  • Length:

    2.95 mm

  • Line Regulation-Max:

    0.0115%

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    5

  • Operating Temperature TJ-Max:

    125 °C

  • Operating Temperature TJ-Min:

    -40 °C

  • Output Current1-Max:

    0.1 A

  • Output Voltage1-Max:

    3.105 V

  • Output Voltage1-Min:

    2.895 V

  • Output Voltage1-Nom:

    3 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    LSOP

  • Package Equivalence Code:

    TSOP5/6,.11,37

  • 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:

    1.45 mm

  • Surface Mount:

    YES

  • Technology:

    BIPOLAR

  • Terminal Finish:

    Nickel/Palladium/Gold (Ni/Pd/Au)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.95 mm

  • Terminal Position:

    DUAL

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

    30

  • Voltage Tolerance-Max:

    3.5%

  • Width:

    1.6 mm

LD2981CM30TR Frequently Asked Questions (FAQs)

  • The maximum input voltage that can be applied to the LD2981CM30TR is 30V, as specified in the datasheet. However, it's recommended to keep the input voltage below 25V to ensure reliable operation and to prevent overheating.
  • While the LD2981CM30TR can handle high currents, it's not designed for extremely high-current applications. The maximum output current is 1A, and the device is optimized for low-dropout voltage regulation. For high-current applications, consider using a dedicated high-current regulator or a switching regulator.
  • To ensure stability and prevent oscillations, follow the recommended layout and component selection guidelines in the datasheet. Use a suitable output capacitor with a low ESR, and ensure that the input capacitor is properly decoupled. Additionally, avoid using long traces and keep the feedback loop as short as possible.
  • The LD2981CM30TR is rated for operation up to 125°C, but it's essential to consider the thermal design and heat dissipation in your application. Ensure that the device is properly heat-sinked, and consider using a thermal pad or heat sink to keep the junction temperature within the recommended range.
  • The output voltage of the LD2981CM30TR can be adjusted by using an external resistor divider network between the output and the ADJ pin. The datasheet provides a formula to calculate the required resistor values for a specific output voltage. Be sure to follow the recommended layout and component selection guidelines to ensure accurate voltage regulation.

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LD2981CM30TR 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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