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LTC7821IUH#PBF - Analog Devices

Description: Switching Controllers Hybrid Step-Down Synchronous Controller

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LTC7821IUH#PBF - Analog Devices PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - UH Package 32-Lead Plastic QFN (5mm × 5mm)
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3D Models
LTC7821IUH#PBF - Analog Devices  - 3D model - Quad Flat No-Lead - UH Package 32-Lead Plastic QFN (5mm × 5mm)
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LTC7821IUH#PBF Details

  • Manufacturer Part Number:

    LTC7821IUH#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    QFN-32

  • Pin Count:

    32

  • Manufacturer Package Code:

    05-08-1693

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    9

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    VOLTAGE-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    72 V

  • Input Voltage-Min:

    10 V

  • Input Voltage-Nom:

    48 V

  • JESD-30 Code:

    S-PQCC-N32

  • JESD-609 Code:

    e3

  • Length:

    5 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    32

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Voltage-Max:

    33.5 V

  • Output Voltage-Min:

    0.9 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVQCCN

  • Package Shape:

    SQUARE

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    0.8 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    500 kHz

  • Technology:

    CMOS

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

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

    30

  • Width:

    5 mm

LTC7821IUH#PBF Frequently Asked Questions (FAQs)

  • The maximum input voltage that can be applied to the LTC7821IUH is 80V, but it's recommended to keep it below 60V for optimal performance and reliability.
  • To ensure stability, make sure to follow the recommended layout and component selection guidelines in the datasheet, and add a 10nF to 100nF capacitor between the VIN and GND pins to filter out high-frequency noise.
  • The minimum ESR required for the output capacitor is 10mΩ, but it's recommended to use a capacitor with an ESR of 1mΩ to 5mΩ for optimal performance and stability.
  • The LTC7821IUH is rated for operation up to 125°C, but it's recommended to derate the output current and input voltage at high temperatures to ensure reliability and prevent thermal shutdown.
  • The output voltage ripple can be calculated using the formula: ΔVout = (Iout * ESR) / (fsw * Cout), where Iout is the output current, ESR is the output capacitor's equivalent series resistance, fsw is the switching frequency, and Cout is the output capacitance.

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LTC7821IUH#PBF 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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