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SC508ULTRT - SEMTECH

Description: Switching Controllers HV DC-DC BUCK CONT W/PROG LDO

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SC508ULTRT - SEMTECH PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - SC508ULTRT
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SC508ULTRT - SEMTECH  - 3D model - Quad Flat No-Lead - SC508ULTRT
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SC508ULTRT Details

  • Manufacturer Part Number:

    SC508ULTRT

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    QFN

  • Package Description:

    3 X 3 MM, HALOGEN FREE AND ROHS COMPLIANT, MLPQ-20

  • Pin Count:

    20

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    4 Weeks

  • Manufacturer:

    Semtech Corporation

  • YTEOL:

    7

  • Additional Feature:

    ALSO OPERATES IN ADJUSTABLE MODE FROM 0.6 TO 5.5V

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    VOLTAGE-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    46 V

  • Input Voltage-Min:

    4.5 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    S-XQCC-N20

  • JESD-609 Code:

    e3

  • Length:

    3 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    20

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Voltage-Nom:

    5 V

  • Package Body Material:

    UNSPECIFIED

  • Package Code:

    HVQCCN

  • Package Equivalence Code:

    LCC20,.11SQ,16

  • Package Shape:

    SQUARE

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    0.6 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    PUSH-PULL

  • Switching Frequency-Max:

    1000 kHz

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.4 mm

  • Terminal Position:

    QUAD

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

    30

  • Width:

    3 mm

SC508ULTRT Frequently Asked Questions (FAQs)

  • A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the input and output tracks as short as possible, and use a common mode choke to reduce EMI.
  • Ensure good thermal conductivity by using a heat sink or thermal pad, and avoid blocking airflow around the device. Monitor the junction temperature (TJ) and adjust the operating conditions accordingly.
  • Use a common mode choke and a differential mode filter to reduce EMI. Ensure the filter components are placed close to the SC508ULTRT, and use a shielded enclosure to minimize radiation.
  • Check the input voltage, output current, and temperature. Verify the PCB layout and component placement. Use an oscilloscope to monitor the input and output waveforms, and consult the datasheet and application notes for guidance.
  • Use low-ESR capacitors with a voltage rating of at least 1.5 times the input voltage. For the output, use a capacitor with a capacitance value between 10uF to 100uF, depending on the output current and ripple requirements.

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SC508ULTRT Overview

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