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MAX77857CEWB+T - Analog Devices

Description: 2.5V to 16V Input, 7A Switching Current High-Efficiency Buck-Boost Converter

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MAX77857CEWB+T - Analog Devices - PCB symbol
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MAX77857CEWB+T - Analog Devices PCB footprint - BGA - BGA - W352A2+1
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3D Models
MAX77857CEWB+T - Analog Devices - 3D model - BGA - W352A2+1
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MAX77857CEWB+T Details

  • Manufacturer Part Number:

    MAX77857CEWB+T

  • Brand Name:

    Analog Devices Inc

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    35-WLCSP-N/A

  • Package Description:

    WLP-35

  • Pin Count:

    35

  • Manufacturer Package Code:

    35-WLCSP-N/A

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Date Of Intro:

    2022-03-16

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    8.5

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    16 V

  • Input Voltage-Min:

    2.5 V

  • Input Voltage-Nom:

    7.6 V

  • JESD-30 Code:

    R-XBGA-B35

  • Length:

    2.828 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    35

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    6 A

  • Output Voltage-Max:

    15 V

  • Output Voltage-Min:

    3 V

  • Output Voltage-Nom:

    5 V

  • Package Body Material:

    UNSPECIFIED

  • Package Code:

    VFBGA

  • Package Equivalence Code:

    BGA35,5X7,16

  • Package Shape:

    RECTANGULAR

  • Package Style:

    GRID ARRAY, VERY THIN PROFILE, FINE PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    0.69 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK-BOOST

  • Switching Frequency-Max:

    2270 kHz

  • Terminal Finish:

    Tin/Silver/Copper/Nickel (Sn/Ag/Cu/Ni)

  • Terminal Form:

    BALL

  • Terminal Pitch:

    0.4 mm

  • Terminal Position:

    BOTTOM

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

    30

  • Width:

    2.028 mm

MAX77857CEWB+T Frequently Asked Questions (FAQs)

  • A good PCB layout for the MAX77857CEWB+T involves keeping the input and output capacitors close to the IC, using a solid ground plane, and minimizing the length of the traces between the IC and the capacitors. Additionally, it's recommended to use a 4-layer PCB with a dedicated power plane and a dedicated ground plane to reduce noise and improve performance.
  • The MAX77857CEWB+T output voltage can be configured using the FB pin and an external resistor divider network. The output voltage is determined by the ratio of the resistors in the divider network. For example, to set the output voltage to 3.3V, you can use a 10kΩ resistor from the FB pin to the output voltage and a 20kΩ resistor from the FB pin to ground.
  • The MAX77857CEWB+T can handle an input voltage up to 28V, but it's recommended to keep the input voltage below 24V to ensure optimal performance and reliability.
  • The watchdog timer on the MAX77857CEWB+T can be enabled/disabled by setting the WDI pin high or low. When the WDI pin is high, the watchdog timer is enabled, and when it's low, the watchdog timer is disabled.
  • The EN pin on the MAX77857CEWB+T is an enable input that allows the user to turn the regulator on or off. When the EN pin is high, the regulator is enabled, and when it's low, the regulator is disabled.

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MAX77857CEWB+T 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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