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LT1521CST-3#PBF - Analog Devices

Description: 300mA Low Dropout Regulators with Micropower Quiescent Current and Shutdown

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LT1521CST-3#PBF - Analog Devices - PCB symbol
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PCB Footprints
LT1521CST-3#PBF - Analog Devices PCB footprint - SOT223 (3-Pin) - SOT223 (3-Pin) - ST PACKAGE 3-LEAD PLASTIC SOT-223
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LT1521CST-3#PBF - Analog Devices - 3D model - SOT223 (3-Pin) - ST PACKAGE 3-LEAD PLASTIC SOT-223
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LT1521CST-3#PBF Details

  • Manufacturer Part Number:

    LT1521CST-3#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • 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:

    0.75 V

  • Dropout Voltage1-Nom:

    0.5 V

  • Input Voltage Absolute-Max:

    20 V

  • Input Voltage-Max:

    20 V

  • Input Voltage-Min:

    4 V

  • JESD-30 Code:

    R-PDSO-G4

  • JESD-609 Code:

    e3

  • Length:

    6.505 mm

  • Line Regulation-Max:

    0.02%

  • Load Regulation-Max:

    0.055%

  • 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:

    0.3 A

  • Output Voltage1-Max:

    3.1 V

  • Output Voltage1-Min:

    2.9 V

  • Output Voltage1-Nom:

    3 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOT-223

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • 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:

    3.3%

  • Width:

    3.505 mm

LT1521CST-3#PBF Frequently Asked Questions (FAQs)

  • A good PCB layout for the LT1521CST-3#PBF involves keeping the input and output capacitors close to the device, using a solid ground plane, and minimizing the length of the input and output traces. Additionally, it's recommended to use a separate analog ground plane and to keep the power supply traces away from the analog signals.
  • To ensure stability, make sure to follow the recommended component values and PCB layout guidelines. Additionally, ensure that the output capacitor has a low ESR (Equivalent Series Resistance) and that the input capacitor is properly sized. It's also important to check for oscillations and ringing in the output voltage waveform.
  • The maximum ambient temperature range for the LT1521CST-3#PBF is -40°C to 125°C. However, the device's performance may degrade at higher temperatures, so it's recommended to derate the output current and voltage accordingly.
  • Yes, the LT1521CST-3#PBF is suitable for high-reliability and automotive applications. It's manufactured using a high-reliability process and has been tested to meet the requirements of the AEC-Q100 standard. However, it's recommended to consult with Analog Devices Inc for specific requirements and testing.
  • To troubleshoot issues with the LT1521CST-3#PBF, start by checking the input voltage, output voltage, and output current. Verify that the component values and PCB layout meet the recommended specifications. Use an oscilloscope to check for oscillations, ringing, or other anomalies in the output voltage waveform. Consult the datasheet and application notes for troubleshooting guides and FAQs.

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LT1521CST-3#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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