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LT3973IDD-5#PBF - Analog Devices

Description: LINEAR TECHNOLOGY - LT3973IDD-5#PBF - Buck (Step Down) Switching Regulator, Fixed, 4.2V-42V In, 5V And 750mA Out, DFN-10

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LT3973IDD-5#PBF - Analog Devices PCB footprint - Small Outline No-lead - Small Outline No-lead - 10-Lead (3mm × 3mm) Plastic DFN
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LT3973IDD-5#PBF - Analog Devices  - 3D model - Small Outline No-lead - 10-Lead (3mm × 3mm) Plastic DFN
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LT3973IDD-5#PBF Details

  • Manufacturer Part Number:

    LT3973IDD-5#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

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    40 V

  • Input Voltage-Min:

    4.2 V

  • Input Voltage-Nom:

    12 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

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    1.98 A

  • Output Voltage-Max:

    5.1 V

  • Output Voltage-Min:

    4.9 V

  • Output Voltage-Nom:

    5 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

  • Seated Height-Max:

    0.8 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    2580 kHz

  • Technology:

    BIPOLAR

  • Temperature Grade:

    AUTOMOTIVE

  • 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

LT3973IDD-5#PBF Frequently Asked Questions (FAQs)

  • A good PCB layout for the LT3973 involves keeping the input and output capacitors close to the device, using a solid ground plane, and minimizing the length of the traces between the device and the capacitors. 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. Additionally, ensure that the input and output capacitors are of high quality and have low ESR. It's also important to decouple the power supply pins with a 10uF capacitor and to use a low impedance power source.
  • The LT3973 is rated for operation from -40°C to 125°C, but the maximum ambient temperature range depends on the specific application and the power dissipation of the device. It's recommended to derate the power dissipation at higher temperatures to ensure reliable operation.
  • Yes, the LT3973 is available in a variety of grades, including the 'MP' grade which is suitable for high-reliability applications, and the 'Q' grade which is suitable for automotive applications. These grades have additional testing and screening to ensure higher reliability and performance.
  • The power dissipation of the LT3973 can be calculated using the equation: Pd = (Vin - Vout) x Iout + (Vin x Iq), where Vin is the input voltage, Vout is the output voltage, Iout is the output current, and Iq is the quiescent current. It's also important to consider the thermal resistance of the package and the PCB to ensure that the device does not overheat.

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LT3973IDD-5#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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