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LMS3655MMRNLR - Texas Instruments

Description: Buck Switching Regulator IC Positive Adjustable 1V 1 Output 5.5A 22-PowerVFQFN

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PCB Footprints
LMS3655MMRNLR - Texas Instruments PCB footprint - Other - Other - RNL0022A_2026-3.3
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3D Models
LMS3655MMRNLR - Texas Instruments  - 3D model - Other - RNL0022A_2026-3.3
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LMS3655MMRNLR Details

  • Manufacturer Part Number:

    LMS3655MMRNLR

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Date Of Intro:

    2017-08-04

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Additional Feature:

    OPERATES WITH ADJ OUTPUT VOLTAGE= 1V TO 20V ; ALSO OPERATES IN PFM MODE

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    42 V

  • Input Voltage-Min:

    3.5 V

  • Input Voltage-Nom:

    13.5 V

  • JESD-30 Code:

    R-PQCC-N22

  • JESD-609 Code:

    e3

  • Length:

    5 mm

  • Moisture Sensitivity Level:

    2

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    22

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    5.5 A

  • Output Voltage-Max:

    15 V

  • Output Voltage-Min:

    1 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    QCCN

  • Package Shape:

    RECTANGULAR

  • Package Style:

    CHIP CARRIER

  • Packing Method:

    TR

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    0.9 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    500 kHz

  • Technology:

    BICMOS

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

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

    30

  • Width:

    4 mm

LMS3655MMRNLR Frequently Asked Questions (FAQs)

  • A 4-layer PCB with a solid ground plane and thermal vias is recommended. Ensure that the thermal pad is connected to a large copper area to dissipate heat efficiently.
  • Ensure that the input voltage is within the recommended range (2.7V to 5.5V) and that the enable pin is properly biased (high or low) according to the application requirements.
  • A 1-10uF ceramic capacitor (X5R or X7R dielectric) is recommended for input decoupling. The capacitor value depends on the specific application requirements and noise sensitivity.
  • Use a shielded enclosure, keep the device away from noise sources, and ensure that the PCB layout is optimized for minimal radiation. Additionally, use a common-mode choke or ferrite bead on the input lines to reduce EMI.
  • The maximum allowed power dissipation is 1.4W. Ensure that the device is properly heat-sinked and that the thermal design is optimized to prevent overheating.

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LMS3655MMRNLR 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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