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LM20343MH/NOPB - Texas Instruments

Description: Texas Instruments LM20343MH/NOPB, Step Down DC-DC Converter, 3A, Adjustable, 0.8 → 32 V, 20-Pin TSSOP

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PCB Footprints
LM20343MH/NOPB - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - PWP0020A-2021
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3D Models
LM20343MH/NOPB - Texas Instruments  - 3D model - Small Outline Packages - PWP0020A-2021
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LM20343MH/NOPB Details

  • Manufacturer Part Number:

    LM20343MH/NOPB

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    TSSOP

  • Pin Count:

    20

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Additional Feature:

    OUTPUT VOLTAGE IS ADJUSTABLE FROM 0.8 TO 5V

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    36 V

  • Input Voltage-Min:

    4.5 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    R-PDSO-G20

  • JESD-609 Code:

    e3

  • Length:

    6.5 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    20

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    3 A

  • Output Voltage-Max:

    32 V

  • Output Voltage-Min:

    0.8 V

  • Output Voltage-Nom:

    5.5 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HTSSOP

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    1.2 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    1000 kHz

  • Technology:

    BICMOS

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    4.4 mm

LM20343MH/NOPB Frequently Asked Questions (FAQs)

  • A good PCB layout for the LM20343MH/NOPB should prioritize thermal dissipation. Place the device near a thermal pad or a heat sink, and ensure good copper pour coverage around the device. Avoid routing high-current traces under the device, and keep the thermal pad connected to a solid ground plane.
  • To ensure stable output voltage regulation, ensure that the input voltage is within the recommended range, and the output capacitor is of sufficient value (at least 10uF) and ESR (less than 1 ohm). Also, ensure that the feedback resistors are of high precision and low tolerance.
  • The maximum safe operating junction temperature for the LM20343MH/NOPB is 150°C. Exceeding this temperature can lead to reduced reliability and lifespan of the device.
  • Yes, the LM20343MH/NOPB is qualified for automotive and high-reliability applications. It meets the requirements of the AEC-Q100 standard for automotive applications, and is suitable for use in harsh environments.
  • To calculate the power dissipation of the LM20343MH/NOPB, use the formula: Pd = (Vin - Vout) x Iout. Where Vin is the input voltage, Vout is the output voltage, and Iout is the output current.

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LM20343MH/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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