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MAX1843ETI+ - Analog Devices

Description: 2.7A, 1MHz, Low-Voltage, Step-Down Regulator with Internal Synchronous Rectification in TQFN Package

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MAX1843ETI+ - Analog Devices PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - 28-LFCSP-5X5X0.75_2023-4
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MAX1843ETI+ - Analog Devices  - 3D model - Quad Flat No-Lead - 28-LFCSP-5X5X0.75_2023-4
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MAX1843ETI+ Details

  • Manufacturer Part Number:

    MAX1843ETI+

  • Brand Name:

    Analog Devices Inc

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    28-LFCSP-5X5X0.75

  • Package Description:

    5 X 5 MM, 0.80 MM HEIGHT, LEAD FREE, MO-220WHHD-1, TQFN-28

  • Pin Count:

    28

  • Manufacturer Package Code:

    28-LFCSP-5X5X0.75

  • Country Of Origin:

    Japan, Mainland China, Malaysia, Philippines, Singapore, South Korea, Taiwan, Thailand, USA

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Date Of Intro:

    2000-10-23

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    9

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    5.5 V

  • Input Voltage-Min:

    3 V

  • Input Voltage-Nom:

    3.3 V

  • JESD-30 Code:

    S-XQCC-N28

  • JESD-609 Code:

    e3

  • Length:

    5 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    28

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    4.7 A

  • Output Voltage-Max:

    5.5 V

  • Output Voltage-Min:

    1.1 V

  • Output Voltage-Nom:

    1.5 V

  • Package Body Material:

    UNSPECIFIED

  • Package Code:

    HVQCCN

  • Package Equivalence Code:

    LCC28,.2SQ,20

  • Package Shape:

    SQUARE

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    0.8 mm

  • Supply Current-Max (Isup):

    0.6 mA

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    1000 kHz

  • Temperature Grade:

    INDUSTRIAL

  • 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:

    5 mm

MAX1843ETI+ Frequently Asked Questions (FAQs)

  • The recommended PCB layout for the MAX1843ETI+ involves placing the input capacitors as close as possible to the IC, using a solid ground plane, and keeping the high-current paths short and wide. A 4-layer PCB with a dedicated power plane is also recommended.
  • To optimize the performance of the MAX1843ETI+ in a high-temperature environment, ensure good thermal conductivity by using a heat sink or thermal pad, and consider derating the output current and voltage according to the device's thermal characteristics.
  • The maximum allowed input voltage ripple for the MAX1843ETI+ is not explicitly stated in the datasheet, but a general rule of thumb is to keep the input voltage ripple below 10% of the nominal input voltage to ensure stable operation.
  • Yes, the MAX1843ETI+ can be used in a synchronous rectification configuration, but it requires additional external components and careful design to ensure proper operation and minimize losses.
  • To troubleshoot issues with the MAX1843ETI+ not turning on or not regulating properly, check the input voltage, enable pin, and output voltage, and verify that the device is properly configured and that the input and output capacitors are correctly sized and placed.

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MAX1843ETI+ Overview

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About Analog Devices

Analog Devices Inc. is a global leader in the design and manufacturing of analog, mixed-signal, and digital signal processing integrated circuits and software solutions for the industrial, automotive, healthcare, communications industries. Analog Devices serves a diverse range of markets including industrial, automotive, healthcare, energy, aerospace, defense, and consumer electronics industries. Analog Devices’ product portfolio includes a wide range of ICs, modules, and subsystems.

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