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LD2979M30TR - STMicroelectronics

Description: LD2979M30TR, Low Dropout Voltage Regulator, 0.05A, 3 V, 5-Pin SOT-23

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Symbol
LD2979M30TR - STMicroelectronics - PCB symbol
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PCB Footprints
LD2979M30TR - STMicroelectronics PCB footprint - SOT23 (5-Pin) - SOT23 (5-Pin) - SOT23-5L-ren1
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LD2979M30TR - STMicroelectronics - 3D model - SOT23 (5-Pin) - SOT23-5L-ren1
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LD2979M30TR Details

  • Manufacturer Part Number:

    LD2979M30TR

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOT-23

  • Package Description:

    ROHS COMPLIANT, SOT-23, 5 PIN

  • Pin Count:

    5

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    0

  • Adjustability:

    FIXED

  • Dropout Voltage1-Max:

    0.6 V

  • Dropout Voltage1-Nom:

    0.2 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:

    e3

  • Length:

    2.9 mm

  • Line Regulation-Max:

    0.0236%

  • 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:

    -25 °C

  • Output Current1-Max:

    0.05 A

  • Output Voltage1-Max:

    3.12 V

  • Output Voltage1-Min:

    2.88 V

  • Output Voltage1-Nom:

    3 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    LSSOP

  • Package Equivalence Code:

    TSOP5/6,.11,37

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, LOW PROFILE, SHRINK PITCH

  • 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:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.95 mm

  • Terminal Position:

    DUAL

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

    30

  • Voltage Tolerance-Max:

    4%

  • Width:

    1.625 mm

LD2979M30TR Frequently Asked Questions (FAQs)

  • STMicroelectronics provides a recommended PCB layout in the application note AN4553, which includes guidelines for thermal vias, copper pours, and component placement to minimize thermal resistance and ensure optimal performance.
  • To ensure stable output voltage regulation, it's essential to follow the recommended input capacitor selection and placement guidelines in the datasheet. Additionally, consider using a voltage supervisor or a power-on reset circuit to ensure the output voltage is stable during power-up and power-down sequences.
  • While the datasheet doesn't specify a maximum allowed input voltage ripple, a general rule of thumb is to keep the input voltage ripple below 10% of the nominal input voltage to ensure reliable operation. Excessive input voltage ripple can affect the regulator's stability and output voltage accuracy.
  • The LD2979M30TR is rated for operation up to 150°C, but it's essential to consider the device's power dissipation and thermal management when operating in high-temperature environments. Ensure proper heat sinking and thermal design to prevent overheating and ensure reliable operation.
  • To troubleshoot output voltage instability or oscillations, check the input voltage, output capacitor selection, and PCB layout. Ensure that the input voltage is within the recommended range, and the output capacitor meets the recommended specifications. Also, verify that the PCB layout follows the recommended guidelines for thermal and noise reduction.

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LD2979M30TR 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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