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LT1121IST-5#PBF - Analog Devices

Description: LT1121IST-5#PBF, Low Dropout Voltage Regulator, 0.15A, 5 V, -30 → 30 Vin, 4-Pin SOT-223

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PCB Footprints
LT1121IST-5#PBF - Analog Devices PCB footprint - SOT223 (3-Pin) - SOT223 (3-Pin) - 3-Lead Plastic SOT-223
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LT1121IST-5#PBF - Analog Devices  - 3D model - SOT223 (3-Pin) - 3-Lead Plastic SOT-223
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LT1121IST-5#PBF Details

  • Manufacturer Part Number:

    LT1121IST-5#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    SOT-323

  • Pin Count:

    3

  • Manufacturer Package Code:

    05-08-1630

  • Country Of Origin:

    Thailand

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    9

  • Adjustability:

    FIXED

  • Dropout Voltage1-Max:

    0.7 V

  • Dropout Voltage1-Nom:

    0.42 V

  • Input Voltage Absolute-Max:

    30 V

  • Input Voltage-Max:

    20 V

  • Input Voltage-Min:

    6 V

  • JESD-30 Code:

    R-PDSO-G4

  • JESD-609 Code:

    e3

  • Length:

    6.505 mm

  • Line Regulation-Max:

    0.01%

  • Load Regulation-Max:

    0.04%

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    4

  • Operating Temperature TJ-Max:

    125 °C

  • Operating Temperature TJ-Min:

    -40 °C

  • Output Current1-Max:

    0.15 A

  • Output Voltage1-Max:

    5.15 V

  • Output Voltage1-Min:

    4.85 V

  • Output Voltage1-Nom:

    5 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOT-223

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Packing Method:

    TUBE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Regulator Type:

    FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR

  • Seated Height-Max:

    1.8 mm

  • Surface Mount:

    YES

  • Technology:

    BIPOLAR

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    2.3 mm

  • Terminal Position:

    DUAL

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

    30

  • Voltage Tolerance-Max:

    3%

  • Width:

    3.505 mm

LT1121IST-5#PBF Frequently Asked Questions (FAQs)

  • A good PCB layout for the LT1121IST-5#PBF involves keeping the input and output traces short and wide, using a solid ground plane, and placing the input and output capacitors close to the device. Additionally, it's recommended to use a low-ESR capacitor for the output capacitor to minimize ringing.
  • To ensure stability and prevent oscillations in the LT1121IST-5#PBF, it's essential to follow the recommended PCB layout, use a low-ESR output capacitor, and ensure that the input and output capacitors are properly sized. Additionally, the device's output should be decoupled from the input using a resistor and capacitor in series.
  • The maximum ambient temperature range for the LT1121IST-5#PBF is -40°C to 125°C. However, the device's performance may degrade at higher temperatures, and it's recommended to derate the device's output current and voltage accordingly.
  • Yes, the LT1121IST-5#PBF is suitable for high-reliability and aerospace applications. It's built with high-reliability materials and manufacturing processes, and it's designed to meet the stringent requirements of these applications. However, it's recommended to consult with Analog Devices Inc. for specific requirements and testing protocols.
  • To troubleshoot issues with the LT1121IST-5#PBF, start by checking the device's input and output voltages, as well as the output current. Verify that the device is properly powered and that the input and output capacitors are properly sized. Use an oscilloscope to check for oscillations or ringing on the output. If the issue persists, consult the datasheet and application notes for troubleshooting guides and contact Analog Devices Inc. for further support.

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LT1121IST-5#PBF Overview

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About Analog Devices

Analog Devices Inc. is a global leader in the design and manufacturing of analog, mixed-signal, and digital signal processing integrated circuits and software solutions for the industrial, automotive, healthcare, communications industries. Analog Devices serves a diverse range of markets including industrial, automotive, healthcare, energy, aerospace, defense, and consumer electronics industries. Analog Devices’ product portfolio includes a wide range of ICs, modules, and subsystems.

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