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LTC3569IUDC#PBF - Analog Devices

Description: Three Independent Current Mode Buck DC/DC Regulators (1.2A and 2 × 600mA) n Single Pin Programmable VFB Servo Voltages from 800mV Down to 425mV (in 25mV Steps) n Pull VFB High to Make Each 600mA Buck a Slave for Higher Current Operation n Pulse-Skipping or Burst Mode® Operation n Programmable Switching Frequency (1MHz to 3MHz) or Fixed 2.25MHz n Synchronizable (1.2MHz to 3MHz) n VIN Range 2.5V to 5.5V n All Regulators Internally Compensated n PGOOD Output Flag n Quiescent Current <100µA (All Re

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LTC3569IUDC#PBF - Analog Devices - PCB symbol
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PCB Footprints
LTC3569IUDC#PBF - Analog Devices PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - UDC Package 20-Lead Plastic QFN (3mm × 4mm) (Reference LTC DWG # 05-08-1742 Rev Ø)
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3D Models
LTC3569IUDC#PBF - Analog Devices - 3D model - Quad Flat No-Lead - UDC Package 20-Lead Plastic QFN (3mm × 4mm) (Reference LTC DWG # 05-08-1742 Rev Ø)
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LTC3569IUDC#PBF Details

  • Manufacturer Part Number:

    LTC3569IUDC#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    3 X 4 MM, LEAD FREE, PLASTIC, QFN-20

  • Pin Count:

    20

  • Manufacturer Package Code:

    05-08-1742

  • 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:

    BURST MODE

  • Input Voltage-Max:

    5.5 V

  • Input Voltage-Min:

    2.5 V

  • Input Voltage-Nom:

    3.6 V

  • JESD-30 Code:

    R-PQCC-N20

  • JESD-609 Code:

    e3

  • Length:

    4 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    20

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    2.5 A

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVQCCN

  • Package Shape:

    RECTANGULAR

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    0.8 mm

  • Supply Current-Max (Isup):

    0.365 mA

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    3000 kHz

  • Technology:

    CMOS

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

  • Width:

    3 mm

LTC3569IUDC#PBF Frequently Asked Questions (FAQs)

  • A good PCB layout for the LTC3569IUDC#PBF involves keeping the input and output capacitors close to the IC, using a solid ground plane, and minimizing the length of the traces connecting the IC to the capacitors and resistors. It's also recommended to use a separate analog ground plane and to keep the digital and analog signals separate.
  • The choice of input and output capacitors for the LTC3569IUDC#PBF depends on the specific application and the desired performance. In general, low-ESR capacitors with a high ripple current rating are recommended. The input capacitor should be at least 10uF, and the output capacitor should be at least 22uF. X5R or X7R ceramic capacitors are good options.
  • The maximum ambient temperature range for the LTC3569IUDC#PBF is -40°C to 125°C. However, the device can operate up to 150°C with reduced performance. It's recommended to keep the device within the specified operating temperature range for optimal performance and reliability.
  • Yes, the LTC3569IUDC#PBF is suitable for high-reliability applications. It's manufactured using a high-reliability process, and it's qualified to automotive and industrial standards. However, it's recommended to follow proper design and manufacturing guidelines to ensure the device operates within its specified parameters.
  • To troubleshoot issues with the LTC3569IUDC#PBF, start by checking the input voltage, output voltage, and current. Verify that the device is properly connected and that the input and output capacitors are properly sized. Check for any signs of overheating, and verify that the device is operating within its specified temperature range. If the issue persists, consult the datasheet and application notes for troubleshooting guidelines.

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LTC3569IUDC#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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