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LMR33620CDDA - Texas Instruments

Description: SIMPLE SWITCHER® 3.8V to 36V, 2A Synchronous Buck Converter With Ultra-Low EMI

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LMR33620CDDA - Texas Instruments - PCB symbol
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LMR33620CDDA - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - PowerPAD SOIC
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LMR33620CDDA - Texas Instruments - 3D model - Small Outline Packages - PowerPAD SOIC
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LMR33620CDDA Details

  • Manufacturer Part Number:

    LMR33620CDDA

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Country Of Origin:

    Mexico

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Additional Feature:

    ALSO VOUT=5 VOLT;PFM TECHNIQUE ALSO USED

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    36 V

  • Input Voltage-Min:

    3.8 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e4

  • Length:

    4.9 mm

  • Moisture Sensitivity Level:

    2

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    2 A

  • Output Voltage-Max:

    34 V

  • Output Voltage-Min:

    1 V

  • Output Voltage-Nom:

    3.3 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HLSOP

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, HEAT SINK/SLUG, LOW PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    1.7 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    2100 kHz

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Nickel/Palladium/Gold (Ni/Pd/Au)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    3.9 mm

LMR33620CDDA Frequently Asked Questions (FAQs)

  • A good PCB layout for optimal thermal performance involves placing the device near a thermal pad or a heat sink, using a 2-layer or 4-layer board, and minimizing the distance between the device and the thermal pad or heat sink. Additionally, using thermal vias and a solid ground plane can help to dissipate heat more efficiently.
  • To ensure stability and prevent oscillations in the output voltage, it's essential to follow the recommended component values and PCB layout guidelines in the datasheet. Additionally, using a low-ESR output capacitor, minimizing the distance between the output capacitor and the device, and using a feedback resistor with a low tolerance can help to prevent oscillations.
  • The maximum input voltage that can be applied to the LMR33620CDDA without damaging it is 42V. Exceeding this voltage can cause permanent damage to the device.
  • The output voltage ripple and noise can be calculated using the equations provided in the datasheet. The output voltage ripple is primarily dependent on the output capacitor value, output current, and switching frequency. The noise can be calculated using the noise spectral density and the bandwidth of interest.
  • The recommended input capacitor value is 10uF to 22uF, and the type should be a low-ESR ceramic capacitor, such as an X5R or X7R dielectric capacitor. This helps to filter out input voltage noise and ensure stable operation.

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LMR33620CDDA Overview

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About Texas Instruments

Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.

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