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LTC7801HFE#TRPBF - Analog Devices

Description: 150V Low IQ, Buck Regulator Positive Output Step-Down DC-DC Controller IC 24-TSSOP

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LTC7801HFE#TRPBF - Analog Devices - PCB symbol
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PCB Footprints
LTC7801HFE#TRPBF - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - FE Package 24-Lead Plastic TSSOP (4.4mm) (Reference LTC DWG # 05-08-1771 Rev B)
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3D Models
LTC7801HFE#TRPBF - Analog Devices - 3D model - Small Outline Packages - FE Package 24-Lead Plastic TSSOP (4.4mm) (Reference LTC DWG # 05-08-1771 Rev B)
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LTC7801HFE#TRPBF Details

  • Manufacturer Part Number:

    LTC7801HFE#TRPBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    TSSOP-24

  • Pin Count:

    24

  • Manufacturer Package Code:

    05-08-1771

  • Country Of Origin:

    Thailand

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    9

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    140 V

  • Input Voltage-Min:

    4 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    R-PDSO-G24

  • JESD-609 Code:

    e3

  • Length:

    7.8 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    24

  • Operating Temperature-Max:

    150 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Voltage-Max:

    60 V

  • Output Voltage-Min:

    0.8 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HTSSOP

  • Package Equivalence Code:

    TSSOP24,.25

  • 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

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    585 kHz

  • Technology:

    CMOS

  • Temperature Grade:

    AUTOMOTIVE

  • 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

LTC7801HFE#TRPBF Frequently Asked Questions (FAQs)

  • A good PCB layout for the LTC7801HFE involves keeping the input and output capacitors close to the device, using a solid ground plane, and minimizing the length of the input and output traces. A 4-layer PCB with a dedicated power plane and a solid ground plane is recommended. Additionally, it's essential to follow the datasheet's guidelines for thermal vias and heat sinking.
  • To ensure stability, it's crucial to follow the datasheet's guidelines for output capacitance, equivalent series resistance (ESR), and output voltage rating. Additionally, the input capacitance should be chosen to ensure the device's input impedance is within the recommended range. It's also important to avoid using capacitors with high ESR values and to keep the feedback loop impedance low.
  • The maximum ambient temperature for the LTC7801HFE is 125°C. However, the device's junction temperature (TJ) should not exceed 150°C. It's essential to ensure proper heat sinking and thermal management to prevent overheating, especially in high-power applications.
  • The LTC7801HFE is a commercial-grade device, but Analog Devices Inc offers a high-reliability version, the LTC7801HFE#TRMPBF, which is designed for high-reliability and aerospace applications. This version is built with enhanced screening, testing, and quality control to meet the requirements of these demanding applications.
  • To troubleshoot issues with the LTC7801HFE, start by verifying the input voltage, output voltage, and output current. Check the PCB layout and ensure it meets the datasheet's guidelines. Use an oscilloscope to measure the output voltage ripple and noise. If the issue persists, consult the datasheet's troubleshooting section and contact Analog Devices Inc's technical support for further assistance.

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LTC7801HFE#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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