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LT1243CS8#PBF - Analog Devices

Description: LT1243CS8#PBF, PWM Current Mode Controller, 1 A 500 kHz 8-Pin SOIC

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LT1243CS8#PBF - Analog Devices - PCB symbol
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PCB Footprints
LT1243CS8#PBF - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - S8(SOIC)
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LT1243CS8#PBF - Analog Devices - 3D model - Small Outline Packages - S8(SOIC)
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LT1243CS8#PBF Details

  • Manufacturer Part Number:

    LT1243CS8#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    0.150 INCH, PLASTIC, SO-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 CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    25 V

  • Input Voltage-Min:

    8.2 V

  • Input Voltage-Nom:

    15 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:

    100 °C

  • Output Current-Max:

    1 A

  • Output Voltage-Max:

    5.075 V

  • Output Voltage-Min:

    4.925 V

  • Output Voltage-Nom:

    5 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

  • Supply Current-Max (Isup):

    10 mA

  • Surface Mount:

    YES

  • Switcher Configuration:

    SINGLE

  • Switching Frequency-Max:

    500 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

LT1243CS8#PBF Frequently Asked Questions (FAQs)

  • A good PCB layout for the LT1243CS8 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 electromagnetic interference (EMI).
  • To ensure stability, it's essential to follow the recommended compensation network and component values, as well as to maintain a minimum output capacitance of 10uF. Additionally, the input and output voltage ranges should be within the specified limits, and the device should be operated within the recommended temperature range.
  • The maximum power dissipation of the LT1243CS8 is dependent on the ambient temperature and the thermal resistance of the package. According to the datasheet, the maximum power dissipation is 1.4W at an ambient temperature of 70°C. However, it's recommended to derate the power dissipation by 8mW/°C above 70°C to ensure reliable operation.
  • The LT1243CS8 is rated for operation up to 125°C, but the device's performance and reliability may degrade at high temperatures. It's recommended to derate the power dissipation and to ensure that the device is operated within the recommended temperature range to ensure reliable operation.
  • To troubleshoot oscillations or instability issues, check the PCB layout for any potential issues, such as long input or output traces, inadequate decoupling, or poor grounding. Also, verify that the input and output voltage ranges are within the specified limits, and that the device is operated within the recommended temperature range. Additionally, check the compensation network and component values to ensure they are correct.

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LT1243CS8#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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