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LT3840HFE#PBF - Analog Devices

Description: Wide Input Range Synchronous Regulator Controller with Accurate Current Limit

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LT3840HFE#PBF - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - FE Package 28-Lead Plastic TSSOP (4.4mm)*
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LT3840HFE#PBF - Analog Devices  - 3D model - Small Outline Packages - FE Package 28-Lead Plastic TSSOP (4.4mm)*
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LT3840HFE#PBF Details

  • Manufacturer Part Number:

    LT3840HFE#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    TSSOP-28

  • Pin Count:

    28

  • Manufacturer Package Code:

    05-08-1663 (EA)

  • Country Of Origin:

    Thailand

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    BURST MODE

  • Input Voltage-Max:

    60 V

  • Input Voltage-Min:

    2.5 V

  • JESD-30 Code:

    R-PDSO-G28

  • JESD-609 Code:

    e3

  • Length:

    9.7 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    28

  • Operating Temperature-Max:

    150 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Voltage-Max:

    60 V

  • Output Voltage-Min:

    1.25 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

  • Supply Current-Max (Isup):

    0.03 mA

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    320 kHz

  • Technology:

    BIPOLAR

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    4.4 mm

LT3840HFE#PBF Frequently Asked Questions (FAQs)

  • The maximum input voltage that can be applied to the LT3840HFE is 42V, but it's recommended to keep it below 40V for reliable operation.
  • To ensure stability, make sure to follow the recommended component values and PCB layout guidelines in the datasheet, and also consider the output capacitor's ESR and ESL values.
  • The minimum input voltage required for the LT3840HFE to operate is 4.5V, but it's recommended to keep it above 5V for reliable startup and operation.
  • The LT3840HFE is rated for operation up to 125°C, but it's recommended to derate the output current and consider thermal management to ensure reliable operation in high-temperature environments.
  • The output voltage of the LT3840HFE can be calculated using the formula: Vout = (R1/R2) * (1 + R3/R4) * Vref, where R1, R2, R3, and R4 are the resistors in the feedback network, and Vref is the internal reference voltage.

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LT3840HFE#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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