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LM2840YQMKX/NOPB - Texas Instruments

Description: Conv DC-DC 4.5V to 42V Step Down Single-Out 0.765V to 34V 0.1A Automotive 6-Pin TSOT-23 T/R

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LM2840YQMKX/NOPB - Texas Instruments - PCB symbol
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PCB Footprints
LM2840YQMKX/NOPB - Texas Instruments PCB footprint - SOT23 (6-Pin) - SOT23 (6-Pin) - DDC0006A
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LM2840YQMKX/NOPB - Texas Instruments - 3D model - SOT23 (6-Pin) - DDC0006A
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LM2840YQMKX/NOPB Details

  • Manufacturer Part Number:

    LM2840YQMKX/NOPB

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOT-23

  • Pin Count:

    6

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    42 V

  • Input Voltage-Min:

    4.5 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    R-PDSO-G6

  • JESD-609 Code:

    e3

  • Length:

    2.9 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    6

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    0.1 A

  • Output Voltage-Max:

    34 V

  • Output Voltage-Min:

    0.765 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TSSOP

  • Package Equivalence Code:

    TSOP6,.11,37

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Screening Level:

    AEC-Q100

  • Seated Height-Max:

    1.1 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    1500 kHz

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.95 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    1.6 mm

LM2840YQMKX/NOPB Frequently Asked Questions (FAQs)

  • Texas Instruments provides a recommended PCB layout in the LM2840 application note (SLVA477) that includes thermal vias, copper pours, and component placement guidelines to minimize thermal resistance and ensure optimal performance.
  • The output capacitor selection depends on the output voltage, output current, and desired ripple voltage. TI recommends using a low-ESR capacitor with a minimum capacitance of 10uF and a voltage rating of at least 1.5 times the output voltage. The capacitor should also be able to handle the maximum output current.
  • Although the datasheet specifies a maximum input voltage of 15V, TI recommends limiting the input voltage to 12V to ensure reliable operation and to prevent damage to the internal voltage regulator.
  • To ensure stability, TI recommends following the stability analysis procedure outlined in the LM2840 datasheet, which involves calculating the output impedance, gain margin, and phase margin. Additionally, the output voltage and load current should be within the recommended operating range.
  • TI recommends using a 1uF to 10uF ceramic or film capacitor with a voltage rating of at least 1.5 times the input voltage. The input capacitor should be placed as close as possible to the VIN pin to minimize noise and ensure stable operation.

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LM2840YQMKX/NOPB 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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