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LTC3870EUF-1#TRPBF - Analog Devices

Description: n LTC3887-1 Phase Extender n Operates with Power Blocks, DrMOS or External Gate Drivers and MOSFETs n Cascade with Multiple Chips for Very Large Current Applications n Accurate PolyPhase Current Sharing n EXTVCC Capable of 5V to 14V Input n Wide VIN Range: 4.5V to 60V n Wide Output Voltage Range : 0.5V to 14V n Wide SYNC Frequency Range: 100kHz to 1MHz n Pin Programmable CCM/DCM Operation n Pin Programmable Phase-Shift Control n Available in a 24-Pin (4mm × 4mm) QFN Package

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LTC3870EUF-1#TRPBF - Analog Devices - PCB symbol
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PCB Footprints
LTC3870EUF-1#TRPBF - Analog Devices PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - UF Package 24-Lead Plastic QFN (4mm × 4mm) (Reference LTC DWG # 05-08-1697 Rev B)
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3D Models
LTC3870EUF-1#TRPBF - Analog Devices - 3D model - Quad Flat No-Lead - UF Package 24-Lead Plastic QFN (4mm × 4mm) (Reference LTC DWG # 05-08-1697 Rev B)
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LTC3870EUF-1#TRPBF Details

  • Manufacturer Part Number:

    LTC3870EUF-1#TRPBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    QFN-24

  • Pin Count:

    24

  • Manufacturer Package Code:

    05-08-1697

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Additional Feature:

    OPERATES IN ADJUSTABLE MODE FROM 0.5V TO 14V

  • Analog IC - Other Type:

    DUAL SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    60 V

  • Input Voltage-Min:

    4.5 V

  • Input Voltage-Nom:

    15 V

  • JESD-30 Code:

    S-PQCC-N24

  • JESD-609 Code:

    e3

  • Length:

    4 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    24

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Voltage-Max:

    14 V

  • Output Voltage-Min:

    0.5 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVQCCN

  • Package Shape:

    SQUARE

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Seated Height-Max:

    0.8 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    1000 kHz

  • Technology:

    CMOS

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

  • Width:

    4 mm

LTC3870EUF-1#TRPBF Frequently Asked Questions (FAQs)

  • A good PCB layout for the LTC3870EUF-1#TRPBF involves keeping the high-current paths short and wide, using a solid ground plane, and placing the input and output capacitors close to the IC. Additionally, it's recommended to use a separate analog and digital ground plane to minimize noise coupling.
  • The selection of input and output capacitors for the LTC3870EUF-1#TRPBF depends on the specific application requirements. In general, low-ESR capacitors with high ripple current ratings are recommended. The input capacitor should be able to handle the input voltage and current, while the output capacitor should be able to handle the output voltage and current. A good starting point is to use capacitors with a voltage rating of at least 1.5 times the maximum input voltage and a capacitance value of 10uF to 22uF.
  • The maximum ambient temperature range for the LTC3870EUF-1#TRPBF is -40°C to 125°C. However, the device's performance and reliability may be affected at extreme temperatures, so it's recommended to operate the device within a temperature range of -20°C to 85°C for optimal performance.
  • The LTC3870EUF-1#TRPBF can be programmed for a specific output voltage using the FB pin and an external resistor divider network. The output voltage is set by the ratio of the resistors in the divider network. A good starting point is to use a 1kΩ resistor from the FB pin to the output voltage and a 1kΩ resistor from the FB pin to ground. The output voltage can then be calculated using the formula: Vout = 0.8V x (R1 + R2) / R2, where R1 and R2 are the resistors in the divider network.
  • The maximum output current capability of the LTC3870EUF-1#TRPBF is 2A. However, the device's output current capability may be limited by the input voltage, output voltage, and thermal considerations. It's recommended to operate the device within a safe operating area to ensure reliable operation and prevent overheating.

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LTC3870EUF-1#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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