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LM317MSTT3G - onsemi

Description: Internal Short Circuit Current Limiting; Internal Thermal Overload Protection; Output Current in Excess of 500 mA; Output Transistor Safe-Area Compensation; Output Adjustable between 1.2 V and 37 V; Floating Operation for High Voltage Applications; Eliminates Stocking Many Fixed Voltages; Pb-Free Packages are Available; NCV Prefix for Automotive and Other Applications Requiring Site Control Changes

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PCB Footprints
LM317MSTT3G - onsemi PCB footprint - SOT223 (3-Pin) - SOT223 (3-Pin) - SOT−223 (TO−261) CASE 318E−04 ISSUE R
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LM317MSTT3G - onsemi  - 3D model - SOT223 (3-Pin) - SOT−223 (TO−261) CASE 318E−04 ISSUE R
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LM317MSTT3G Details

  • Manufacturer Part Number:

    LM317MSTT3G

  • Brand Name:

    onsemi

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOT-223 (TO-261) 4 LEAD

  • Package Description:

    SOT-223, 4 PIN

  • Pin Count:

    4

  • Manufacturer Package Code:

    0.0318

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Date Of Intro:

    1999-01-01

  • Manufacturer:

    onsemi

  • YTEOL:

    6.24

  • Adjustability:

    ADJUSTABLE

  • Dropout Voltage1-Nom:

    3 V

  • Input-Output Voltage Differential-Max:

    40 V

  • Input-Output Voltage Differential-Min:

    3 V

  • JESD-30 Code:

    R-PDSO-G4

  • JESD-609 Code:

    e3

  • Length:

    6.5 mm

  • Line Regulation-Max (%/V):

    0.07

  • Load Regulation-Max(%):

    1.5%

  • 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:

    0.5 A

  • Output Voltage1-Max:

    37 V

  • Output Voltage1-Min:

    1.2 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOT-223

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Packing Method:

    RAIL

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Regulator Type:

    ADJUSTABLE POSITIVE SINGLE OUTPUT STANDARD REGULATOR

  • Seated Height-Max:

    1.75 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):

    30

  • Width:

    3.5 mm

LM317MSTT3G Frequently Asked Questions (FAQs)

  • The maximum input voltage is 40V, but it's recommended to keep it below 35V for reliable operation.
  • To ensure stability, use a minimum output capacitance of 1uF, and keep the input and output capacitors close to the regulator. Also, use a low-ESR capacitor for the output capacitor.
  • The minimum load current is 3.5mA, but it's recommended to have a minimum load of 10mA for stable operation.
  • No, the LM317MSTT3G is designed for positive voltage regulation only. For negative voltage regulation, consider using a different regulator like the LM337.
  • The output voltage can be adjusted by using a resistive divider network between the output and the adjust pin. The formula to calculate the output voltage is Vout = 1.25 * (1 + R2/R1).

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