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LT3957AEUHE#TRPBF - Analog Devices

Description: Boost, Flyback, SEPIC and Inverting Converter with 5A, 40V Switch

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LT3957AEUHE#TRPBF - Analog Devices - PCB symbol
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PCB Footprints
LT3957AEUHE#TRPBF - Analog Devices PCB footprint - Other - Other - UHE Package Variation: UHE36(28)MA 36(28)-Lead Plastic QFN (5mm w 6mm) (Reference LTC DWG # 05-08-1836 R
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3D Models
LT3957AEUHE#TRPBF - Analog Devices - 3D model - Other - UHE Package Variation: UHE36(28)MA 36(28)-Lead Plastic QFN (5mm w 6mm) (Reference LTC DWG # 05-08-1836 R
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LT3957AEUHE#TRPBF Details

  • Manufacturer Part Number:

    LT3957AEUHE#TRPBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    5 X 6 MM, LEAD FREE, PLASTIC, QFN-38/28

  • Pin Count:

    28

  • Manufacturer Package Code:

    05-08-1836

  • Country Of Origin:

    Thailand

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    9

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    40 V

  • Input Voltage-Min:

    3 V

  • Input Voltage-Nom:

    24 V

  • JESD-30 Code:

    R-PQCC-N38

  • JESD-609 Code:

    e3

  • Length:

    6 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    38

  • Operating Temperature-Max:

    125 °C

  • Output Current-Max:

    6.8 A

  • Output Voltage-Nom:

    24 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVQCCN

  • Package Equivalence Code:

    LCC28/36,.19X.23,20

  • Package Shape:

    RECTANGULAR

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Packing Method:

    TR

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    0.8 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BOOST

  • Switching Frequency-Max:

    1200 kHz

  • Technology:

    BIPOLAR

  • Temperature Grade:

    OTHER

  • 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

LT3957AEUHE#TRPBF Frequently Asked Questions (FAQs)

  • A good PCB layout for optimal thermal performance involves placing the LT3957AEUHE#TRPBF near a thermal pad or a heat sink, and ensuring that there are no thermal barriers between the device and the heat sink. Additionally, using a 2-layer or 4-layer PCB with a solid ground plane can help to dissipate heat more efficiently.
  • To ensure reliable start-up of the LT3957AEUHE#TRPBF in a high-voltage application, it is recommended to use a soft-start circuit to limit the inrush current during start-up. This can be achieved by adding a resistor and capacitor in series between the VIN pin and the input voltage source.
  • The maximum allowed voltage on the EN pin of the LT3957AEUHE#TRPBF is 6V. Exceeding this voltage may damage the device. It is recommended to use a voltage divider or a level shifter to ensure that the voltage on the EN pin does not exceed 6V.
  • To optimize the output voltage ripple of the LT3957AEUHE#TRPBF, it is recommended to use a low-ESR output capacitor and to place it as close as possible to the output pins of the device. Additionally, using a larger output capacitor or adding a filter capacitor in parallel with the output capacitor can help to reduce the output voltage ripple.
  • The recommended input capacitor type for the LT3957AEUHE#TRPBF is a low-ESR ceramic capacitor or a film capacitor. The recommended value is 10uF to 22uF, depending on the input voltage and the desired level of input ripple rejection.

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LT3957AEUHE#TRPBF 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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