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LT1938EDD#PBF - Analog Devices

Description: Switching Voltage Regulators 25V, 2.2A (Iout), 2.8MHz Step-Down Switching Regulator in 3mm x 3mm DFN-10

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LT1938EDD#PBF - Analog Devices PCB footprint - Small Outline No-lead - Small Outline No-lead - DD Package 10-Lead Plastic DFN
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LT1938EDD#PBF - Analog Devices  - 3D model - Small Outline No-lead - DD Package 10-Lead Plastic DFN
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LT1938EDD#PBF Details

  • Manufacturer Part Number:

    LT1938EDD#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    3 X 3 MM, LEAD FREE, PLASTIC, MO-229WEED-2, DFN-10

  • Pin Count:

    10

  • Manufacturer Package Code:

    05-08-1699

  • Country Of Origin:

    Thailand

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Additional Feature:

    ALSO OPERATES IN ADJUSTABLE MODE FROM 1.265 TO 20V

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    25 V

  • Input Voltage-Min:

    3.6 V

  • Input Voltage-Nom:

    10 V

  • JESD-30 Code:

    S-PDSO-N10

  • JESD-609 Code:

    e3

  • Length:

    3 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    10

  • Operating Temperature-Max:

    125 °C

  • Output Current-Max:

    4 A

  • Output Voltage-Max:

    20 V

  • Output Voltage-Min:

    1.265 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVSON

  • Package Shape:

    SQUARE

  • Package Style:

    SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    0.8 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    3300 kHz

  • Technology:

    BIPOLAR

  • Temperature Grade:

    OTHER

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    3 mm

LT1938EDD#PBF Frequently Asked Questions (FAQs)

  • A good PCB layout for the LT1938EDD involves keeping the input and output capacitors close to the IC, using a solid ground plane, and minimizing trace lengths and widths to reduce EMI and noise.
  • To ensure stability, ensure that the output capacitor is properly sized, the input voltage is within the recommended range, and the feedback resistors are properly selected. Also, avoid using long feedback traces and minimize the area of the feedback loop.
  • The maximum ambient temperature range for the LT1938EDD is -40°C to 125°C. However, the device's performance may degrade at extreme temperatures, so it's essential to consider the thermal design and heat dissipation in your application.
  • Yes, the LT1938EDD is suitable for high-reliability applications. It's manufactured using a robust process, and Analog Devices provides a high level of quality control and testing. However, it's essential to follow proper design and manufacturing practices to ensure the device's reliability in your specific application.
  • To troubleshoot issues with the LT1938EDD, start by verifying the input voltage, output voltage, and feedback resistors. Check for proper PCB layout, decoupling, and thermal design. Use an oscilloscope to measure the output voltage and current, and consult the datasheet and application notes for guidance.

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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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