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LT1977EFE#PBF - Analog Devices

Description: LT1977EFE#PBF, Switching Regulator, Buck Controller, 3.5A, Adjustable, 575 kHz, 16-Pin TSSOP EP

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LT1977EFE#PBF - Analog Devices - PCB symbol
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PCB Footprints
LT1977EFE#PBF - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - FE(TSSOP)
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LT1977EFE#PBF - Analog Devices - 3D model - Small Outline Packages - FE(TSSOP)
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LT1977EFE#PBF Details

  • Manufacturer Part Number:

    LT1977EFE#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    4.4 MM, LEAD FREE, PLASTIC, TSSOP-16

  • Pin Count:

    16

  • Manufacturer Package Code:

    05-08-1663 (BC)

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    60 V

  • Input Voltage-Min:

    3.3 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    R-PDSO-G16

  • JESD-609 Code:

    e3

  • Length:

    5 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    125 °C

  • Output Current-Max:

    3.5 A

  • 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

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.1 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    575 kHz

  • Technology:

    BIPOLAR

  • Temperature Grade:

    OTHER

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    4.4 mm

LT1977EFE#PBF Frequently Asked Questions (FAQs)

  • A good PCB layout for the LT1977EFE involves keeping the input and output traces short and wide, using a solid ground plane, and placing the input and output capacitors close to the device. A 4-layer PCB with a dedicated power plane and a solid ground plane is recommended.
  • To ensure stability, it's essential to follow the recommended PCB layout, use a low-ESR output capacitor, and add a small ceramic capacitor (e.g., 10nF) between the VIN and GND pins. Additionally, ensure that the input and output voltage rails are well-bypassed and decoupled.
  • The LT1977EFE is rated for operation from -40°C to 125°C, but the maximum ambient temperature range depends on the specific application and the device's power dissipation. It's essential to ensure that the device's junction temperature (TJ) does not exceed 150°C.
  • Yes, the LT1977EFE is suitable for high-reliability and automotive applications. It's manufactured using a high-reliability process, and it's qualified to the AEC-Q100 standard for automotive applications. However, it's essential to follow the recommended PCB layout, thermal management, and component selection guidelines to ensure reliable operation.
  • To calculate the power dissipation, use the formula: Pd = (VIN - VOUT) x IOUT. To estimate the junction temperature, use the formula: TJ = TA + (Pd x θJA), where TA is the ambient temperature, and θJA is the junction-to-ambient thermal resistance (45°C/W for the LT1977EFE).

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LT1977EFE#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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LT1977EFE#PBF Alternates

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Part Image LT1977IFE#PBF Analog Devices Inc

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Part Image LT1977EFE#TR Analog Devices Inc

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For a full list of alternate parts for LT1977EFE#PBF, check out Findchips.com