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LTC3850IGN-1#PBF - Analog Devices

Description: Buck Regulator Positive Output Step-Down DC-DC Controller IC 28-SSOP –40°C to 85°C TJMAX = 125°C, θJA = 95°C/W

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LTC3850IGN-1#PBF - Analog Devices - PCB symbol
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PCB Footprints
LTC3850IGN-1#PBF - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - GN (28-Lead SSOP)_1
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LTC3850IGN-1#PBF - Analog Devices - 3D model - Small Outline Packages - GN (28-Lead SSOP)_1
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LTC3850IGN-1#PBF Details

  • Manufacturer Part Number:

    LTC3850IGN-1#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    SSOP-28

  • Pin Count:

    28

  • Manufacturer Package Code:

    05-08-1641 (GN28)

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Analog IC - Other Type:

    DUAL SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    30 V

  • Input Voltage-Min:

    4 V

  • Input Voltage-Nom:

    15 V

  • JESD-30 Code:

    R-PDSO-G28

  • JESD-609 Code:

    e3

  • Length:

    9.893 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    2

  • Number of Terminals:

    28

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    0.1 A

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SSOP

  • Package Equivalence Code:

    SSOP28,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.75 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    PHASE-SHIFT

  • Switching Frequency-Max:

    860 kHz

  • Technology:

    CMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.635 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    3.899 mm

LTC3850IGN-1#PBF Frequently Asked Questions (FAQs)

  • A good PCB layout for the LTC3850IGN-1#PBF involves keeping the input and output capacitors close to the IC, using a solid ground plane, and separating the analog and digital grounds. Additionally, it's recommended to use a 4-layer PCB with a dedicated power plane and a dedicated ground plane.
  • To ensure stability, make sure to follow the recommended component values and PCB layout guidelines. Additionally, ensure that the output capacitor is properly sized and that the input voltage is within the recommended range. If oscillations occur, try adding a small capacitor (e.g., 10nF) between the VFB pin and GND.
  • The maximum ambient temperature range for the LTC3850IGN-1#PBF is -40°C to 125°C. However, the device's performance may degrade at higher temperatures, so it's recommended to keep the ambient temperature below 85°C for optimal performance.
  • Yes, the LTC3850IGN-1#PBF is suitable for high-reliability and automotive applications. It's built with high-reliability materials and manufacturing processes, and it's qualified to meet the requirements of the AEC-Q100 standard for automotive applications.
  • To troubleshoot issues with the LTC3850IGN-1#PBF, start by checking the input voltage, output voltage, and current sense resistor values. Verify that the component values match the recommended values in the datasheet. Use an oscilloscope to check for oscillations or noise on the output voltage. If the issue persists, try replacing the IC or checking for PCB layout issues.

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LTC3850IGN-1#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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