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LMR33640ADDAR - Texas Instruments

Description: 4-A Synchronous Step-down Converter

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LMR33640ADDAR - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - DDA0008J--+-+
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LMR33640ADDAR - Texas Instruments  - 3D model - Small Outline Packages - DDA0008J--+-+
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LMR33640ADDAR Details

  • Manufacturer Part Number:

    LMR33640ADDAR

  • 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

  • Date Of Intro:

    2019-11-14

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Additional Feature:

    ALSO OPERATES IN PFM CONTROL TECHNIQUE; OUTPUT IN ADJUSTABLE MODE IS 1V TO 24V

  • 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:

    4 A

  • Output Voltage-Max:

    24 V

  • Output Voltage-Min:

    1 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HLSOP

  • Package Equivalence Code:

    SOP8,.24

  • 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:

    1000 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

LMR33640ADDAR Frequently Asked Questions (FAQs)

  • Texas Instruments recommends a 2-layer or 4-layer PCB with a solid ground plane and a thermal relief pattern under the device to optimize thermal performance.
  • To ensure stability, use a minimum output capacitance of 10uF, and consider adding a 10nF-100nF ceramic capacitor in parallel with the output capacitor to filter high-frequency noise.
  • The maximum input voltage that can be applied to the LMR33640ADDAR is 42V, but it's recommended to operate within the specified input voltage range of 3.5V to 36V for optimal performance and reliability.
  • The LMR33640ADDAR is rated for operation up to 125°C, but it's recommended to derate the output current and input voltage as temperature increases to ensure reliability and prevent thermal shutdown.
  • The LMR33640ADDAR has built-in overcurrent protection, but it's recommended to add external protection such as a fuse or a current-sensing resistor to prevent damage from excessive current or short-circuit conditions.

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LMR33640ADDAR 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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