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L4938ED013TR - STMicroelectronics

Description: Linear Voltage Regulator IC Positive Adjustable (Fixed) 2 Output 100mA, 400mA 20-SO

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L4938ED013TR - STMicroelectronics - PCB symbol
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L4938ED013TR - STMicroelectronics PCB footprint - Small Outline Packages - Small Outline Packages - SO-20 mechanical data
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L4938ED013TR - STMicroelectronics - 3D model - Small Outline Packages - SO-20 mechanical data
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L4938ED013TR Details

  • Manufacturer Part Number:

    L4938ED013TR

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC

  • Package Description:

    ROHS COMPLIANT, SOP-20

  • Pin Count:

    20

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    0

  • Adjustability:

    FIXED/ADJUSTABLE

  • Dropout Voltage1-Max:

    0.4 V

  • Dropout Voltage1-Nom:

    0.6 V

  • Dropout Voltage2-Max:

    0.6 V

  • Input Voltage Absolute-Max:

    28 V

  • JESD-30 Code:

    R-PDSO-G20

  • JESD-609 Code:

    e3

  • Length:

    12.8 mm

  • Line Regulation-Max:

    0.02%

  • Load Regulation-Max:

    0.05%

  • Load Regulation-Max(%):

    1%

  • Moisture Sensitivity Level:

    3

  • Number of Functions:

    1

  • Number of Outputs:

    2

  • Number of Terminals:

    20

  • Operating Temperature TJ-Max:

    150 °C

  • Operating Temperature TJ-Min:

    -40 °C

  • Output Current1-Max:

    0.1 A

  • Output Current2-Max:

    0.4 A

  • Output Voltage1-Max:

    5.1 V

  • Output Voltage1-Min:

    4.9 V

  • Output Voltage1-Nom:

    5 V

  • Output Voltage2-Max:

    27 V

  • Output Voltage2-Min:

    5 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP20,.4

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Packing Method:

    TR

  • Peak Reflow Temperature (Cel):

    225

  • Qualification Status:

    Not Qualified

  • Regulator Type:

    FIXED/ADJUSTABLE POSITIVE MULTIPLE OUTPUT LDO REGULATOR

  • Seated Height-Max:

    2.65 mm

  • Surface Mount:

    YES

  • Technology:

    BIPOLAR

  • Terminal Finish:

    MATTE TIN

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    30

  • Voltage Tolerance-Max:

    4%

  • Width:

    7.5 mm

L4938ED013TR Frequently Asked Questions (FAQs)

  • STMicroelectronics provides a recommended PCB layout in their application note AN1026, which includes guidelines for thermal vias, copper pours, and component placement to minimize thermal resistance and ensure reliable operation.
  • Follow the recommended soldering profile in the datasheet, and ensure the PCB is designed with a sufficient thermal relief pattern to prevent thermal damage. Additionally, use a solder paste with a high melting point and a reflow oven with a controlled temperature profile.
  • The maximum allowed voltage drop is not explicitly stated in the datasheet, but as a general rule, it's recommended to keep the voltage drop across the input and output pins below 1V to ensure stable operation and minimize power loss.
  • While the L4938ED013TR is rated for operation up to 125°C, it's not recommended to use it in environments above this temperature without proper derating and thermal management. Consult with STMicroelectronics or a thermal expert to determine the feasibility of using the device in high-temperature applications.
  • Start by verifying the input voltage, output voltage, and current consumption using an oscilloscope and a multimeter. Check the PCB layout and component placement for any thermal or electrical issues. Consult the datasheet and application notes for troubleshooting guidelines, and contact STMicroelectronics' technical support if necessary.

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L4938ED013TR 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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