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LM1085IS-3.3 - Texas Instruments

Description: Low Dropout Positive Regulators

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LM1085IS-3.3 - Texas Instruments PCB footprint - Other - Other - TO254P1435X457-3N
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LM1085IS-3.3 Details

  • Manufacturer Part Number:

    LM1085IS-3.3

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    D2PAK

  • Package Description:

    TO-263, 3 PIN

  • Pin Count:

    4

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Date Of Intro:

    1999-07-23

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Adjustability:

    FIXED

  • Dropout Voltage1-Max:

    1.5 V

  • Dropout Voltage1-Nom:

    1.3 V

  • Input Voltage Absolute-Max:

    27 V

  • Input Voltage-Max:

    29 V

  • Input Voltage-Min:

    4.8 V

  • JESD-30 Code:

    R-PSSO-G3

  • JESD-609 Code:

    e0

  • Length:

    10.16 mm

  • Line Regulation-Max:

    0.006%

  • Load Regulation-Max:

    0.02%

  • Moisture Sensitivity Level:

    3

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    3

  • Operating Temperature TJ-Max:

    125 °C

  • Operating Temperature TJ-Min:

    -40 °C

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current1-Max:

    3 A

  • Output Voltage1-Max:

    3.365 V

  • Output Voltage1-Min:

    3.235 V

  • Output Voltage1-Nom:

    3.3 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TO-263

  • Package Equivalence Code:

    SMSIP3H,.55TB

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Packing Method:

    TUBE

  • Peak Reflow Temperature (Cel):

    235

  • Qualification Status:

    Not Qualified

  • Regulator Type:

    FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR

  • Seated Height-Max:

    4.79 mm

  • Surface Mount:

    YES

  • Technology:

    BIPOLAR

  • Terminal Finish:

    Tin/Lead (Sn/Pb)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    SINGLE

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

    NOT SPECIFIED

  • Voltage Tolerance-Max:

    2%

  • Width:

    8.64 mm

LM1085IS-3.3 Frequently Asked Questions (FAQs)

  • The maximum input voltage is 15V, but it's recommended to keep it below 12V for optimal performance and to prevent overheating.
  • The LM1085IS-3.3 is rated for operation up to 125°C, but thermal derating is required above 85°C. Ensure proper heat sinking and thermal management to prevent overheating.
  • The output voltage tolerance is ±2% for the LM1085IS-3.3. To calculate the tolerance, multiply the nominal output voltage (3.3V) by the tolerance percentage (2%). This gives you a range of 3.234V to 3.366V.
  • The datasheet recommends a minimum input capacitance of 10uF, but it's recommended to use a higher value (e.g., 22uF) to ensure stability and reduce input voltage ripple.
  • No, the LM1085IS-3.3 is a linear voltage regulator and not suitable for switching regulator applications. It's designed for low-dropout, low-noise, and high-PSRR applications.

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LM1085IS-3.3 Overview

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About Texas Instruments

Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.

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