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LT1109CS8-12#PBF - Analog Devices

Description: Switching Voltage Regulators Micropower Low Cost DC/DC Converter Adjustable and Fixed 5V, 12V

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LT1109CS8-12#PBF - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - S8(SOIC)
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LT1109CS8-12#PBF - Analog Devices - 3D model - Small Outline Packages - S8(SOIC)
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LT1109CS8-12#PBF Details

  • Manufacturer Part Number:

    LT1109CS8-12#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    PLASTIC, SOIC-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

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    VOLTAGE-MODE

  • Control Technique:

    PULSE FREQUENCY MODULATION

  • Input Voltage-Max:

    12 V

  • Input Voltage-Min:

    3 V

  • Input Voltage-Nom:

    5 V

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e3

  • Length:

    4.9 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    70 °C

  • Output Current-Max:

    1.2 A

  • Output Voltage-Max:

    12.55 V

  • Output Voltage-Min:

    11.52 V

  • Output Voltage-Nom:

    12 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.75 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BOOST

  • Switching Frequency-Max:

    120 kHz

  • 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

LT1109CS8-12#PBF Frequently Asked Questions (FAQs)

  • A good PCB layout for the LT1109CS8-12 involves keeping the input and output traces short and separate, 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 output capacitor and to minimize the loop area of the input and output traces to reduce EMI.
  • To ensure stability, make sure to follow the recommended component values and PCB layout guidelines. Additionally, check that the output capacitor is properly sized and has a low ESR. If oscillations occur, try adding a small series resistor (e.g., 1-2 ohms) between the output and the output capacitor to dampen the oscillations.
  • The maximum input voltage for the LT1109CS8-12 is 15V, but it's recommended to keep the input voltage below 12V to ensure reliable operation and to prevent damage to the device.
  • The LT1109CS8-12 is rated for operation up to 125°C, but its performance may degrade at high temperatures. Make sure to derate the output current and voltage according to the datasheet's thermal derating curves to ensure reliable operation.
  • To troubleshoot issues with the LT1109CS8-12, start by checking the input voltage, output voltage, and output current. Verify that the component values and PCB layout match the recommended values and layout. Use an oscilloscope to check for oscillations or ringing on the output. If the issue persists, try replacing the device or checking for soldering or assembly errors.

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LT1109CS8-12#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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