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LD1117AS18TR - STMicroelectronics

Description: Low drop fixed and adjustable positive voltage regulators

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PCB Footprints
LD1117AS18TR - STMicroelectronics PCB footprint - SOT223 (3-Pin) - SOT223 (3-Pin) - SOT-223
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3D Models
LD1117AS18TR - STMicroelectronics  - 3D model - SOT223 (3-Pin) - SOT-223
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LD1117AS18TR Details

  • Manufacturer Part Number:

    LD1117AS18TR

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOT-223

  • Package Description:

    ROHS COMPLIANT, SOT-223, 4 PIN

  • Pin Count:

    4

  • Country Of Origin:

    Mainland China

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    12 Weeks

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    6.2

  • Adjustability:

    FIXED

  • Dropout Voltage1-Max:

    1.3 V

  • Dropout Voltage1-Nom:

    1.15 V

  • Input Voltage Absolute-Max:

    10 V

  • Input Voltage-Max:

    8 V

  • Input Voltage-Min:

    3.3 V

  • JESD-30 Code:

    R-PDSO-G4

  • JESD-609 Code:

    e3

  • Length:

    6.5 mm

  • Line Regulation-Max:

    0.006%

  • Load Regulation-Max:

    0.01%

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    4

  • Operating Temperature TJ-Max:

    125 °C

  • Output Current1-Max:

    1 A

  • Output Voltage1-Max:

    1.872 V

  • Output Voltage1-Min:

    1.728 V

  • Output Voltage1-Nom:

    1.8 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOT-223

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Packing Method:

    TR

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Regulator Type:

    FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR

  • Seated Height-Max:

    1.9 mm

  • Surface Mount:

    YES

  • Technology:

    BIPOLAR

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    2.3 mm

  • Terminal Position:

    DUAL

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

    40

  • Voltage Tolerance-Max:

    2%

  • Width:

    3.5 mm

LD1117AS18TR Frequently Asked Questions (FAQs)

  • The maximum input voltage for the LD1117AS18TR 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 an ESR (Equivalent Series Resistance) of less than 1 ohm. Also, keep the input and output capacitors close to the regulator to minimize noise and oscillations.
  • The dropout voltage of the LD1117AS18TR is around 1.5V, which means the input voltage should be at least 1.5V higher than the output voltage to maintain regulation.
  • The LD1117AS18TR is rated for operation up to 125°C, but it's recommended to derate the output current and input voltage to prevent overheating and ensure reliability in high-temperature environments.
  • To calculate power dissipation, use the formula: Pd = (Vin - Vout) x Iout, where Vin is the input voltage, Vout is the output voltage, and Iout is the output current. Make sure to consider the thermal resistance and maximum junction temperature to prevent overheating.

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LD1117AS18TR 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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