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LT1121CS8#PBF - Analog Devices

Description: Linear Technology LT1121CS8#PBF, LDO Voltage Regulator, Adjustable 0.15A, 3.75 → 30 V, 8-Pin SOIC

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LT1121CS8#PBF - Analog Devices - PCB symbol
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LT1121CS8#PBF - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - S8(SOIC)
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LT1121CS8#PBF - Analog Devices - 3D model - Small Outline Packages - S8(SOIC)
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LT1121CS8#PBF Details

  • Manufacturer Part Number:

    LT1121CS8#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    SOP-8

  • Pin Count:

    8

  • Manufacturer Package Code:

    05-08-1610 (S8)

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    9

  • Adjustability:

    ADJUSTABLE

  • Dropout Voltage1-Max:

    0.7 V

  • Dropout Voltage1-Nom:

    0.42 V

  • Input-Output Voltage Differential-Max:

    19.3 V

  • Input-Output Voltage Differential-Min:

    0.55 V

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e3

  • Length:

    4.9025 mm

  • Line Regulation-Max (%/V):

    0.017

  • Load Regulation-Max(%):

    1.07%

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    8

  • Operating Temperature TJ-Max:

    125 °C

  • Output Current1-Max:

    0.15 A

  • Output Voltage1-Max:

    30 V

  • Output Voltage1-Min:

    3.75 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP8,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Packing Method:

    TUBE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Regulator Type:

    ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR

  • Seated Height-Max:

    1.752 mm

  • Surface Mount:

    YES

  • Technology:

    BIPOLAR

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    3.9 mm

LT1121CS8#PBF Frequently Asked Questions (FAQs)

  • A good PCB layout for the LT1121CS8 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 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. Also, ensure that the output capacitor is properly sized and that the input voltage is within the recommended range. Additionally, consider adding a small capacitor (e.g., 10nF) between the output and ground to improve stability.
  • The LT1121CS8 is rated for operation from -40°C to 125°C, but the maximum ambient temperature range depends on the specific application and the device's power dissipation. Consult the datasheet and thermal management guidelines to ensure the device operates within a safe temperature range.
  • The LT1121CS8 is a commercial-grade device, but Analog Devices offers a radiation-hardened version, the LH1121, which is designed for high-reliability and aerospace applications. Consult with Analog Devices or a qualified distributor to determine the best device for your specific application.
  • To troubleshoot issues, start by verifying the power supply voltage, input voltage, and output voltage. Check for proper PCB layout, component values, and soldering quality. Use an oscilloscope to inspect the output waveform and look for signs of oscillation or instability. Consult the datasheet and application notes for guidance on troubleshooting common issues.

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LT1121CS8#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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