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LF85CDT-TR - STMicroelectronics

Description: Very low drop voltage regulator with inhibit function

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PCB Footprints
LF85CDT-TR - STMicroelectronics PCB footprint - Other - Other - DPAK_002
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LF85CDT-TR - STMicroelectronics  - 3D model - Other - DPAK_002
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LF85CDT-TR Details

  • Manufacturer Part Number:

    LF85CDT-TR

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    TO-252

  • Package Description:

    DPAK-3/2

  • Pin Count:

    3

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    4 Weeks

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    0

  • Adjustability:

    FIXED

  • Dropout Voltage1-Max:

    0.7 V

  • Dropout Voltage1-Nom:

    0.4 V

  • Input Voltage Absolute-Max:

    40 V

  • Input Voltage-Max:

    16 V

  • Input Voltage-Min:

    9.5 V

  • JESD-30 Code:

    R-PSSO-G2

  • JESD-609 Code:

    e3

  • Length:

    6.5 mm

  • Line Regulation-Max:

    0.042%

  • Load Regulation-Max:

    0.042%

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    2

  • Operating Temperature TJ-Max:

    125 °C

  • Operating Temperature TJ-Min:

    -40 °C

  • Output Current1-Max:

    0.5 A

  • Output Voltage1-Max:

    8.84 V

  • Output Voltage1-Min:

    8.16 V

  • Output Voltage1-Nom:

    8.5 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TO-252

  • Package Equivalence Code:

    SMSIP3H,.38,90TB

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, HEAT SINK/SLUG

  • Packing Method:

    TR, 13 INCH

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Regulator Type:

    FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR

  • Seated Height-Max:

    2.4 mm

  • Surface Mount:

    YES

  • Technology:

    BIPOLAR

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    2.28 mm

  • Terminal Position:

    SINGLE

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

    30

  • Voltage Tolerance-Max:

    2%

  • Width:

    6.1 mm

LF85CDT-TR Frequently Asked Questions (FAQs)

  • STMicroelectronics recommends a thermal pad on the bottom of the package, connected to a large copper area on the PCB to dissipate heat efficiently. A minimum of 2oz copper thickness is recommended.
  • To ensure stable operation with a single-supply voltage, it's essential to decouple the input and output pins with capacitors (e.g., 10uF and 100nF) and use a low-ESR capacitor for the output filter.
  • The maximum allowed input voltage ripple for the LF85CDT-TR is 1V peak-to-peak. Exceeding this value may affect the regulator's stability and output voltage accuracy.
  • While the LF85CDT-TR is rated for operation up to 125°C, it's essential to consider the thermal derating curve and ensure the junction temperature (Tj) does not exceed 150°C. Proper heat sinking and thermal management are crucial in high-temperature applications.
  • The output voltage tolerance and accuracy can be calculated by considering the initial tolerance, temperature coefficient, and load regulation. Refer to the datasheet for specific values and formulas to calculate the total output voltage error.

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LF85CDT-TR 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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