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LM51561QDSSRQ1 - Texas Instruments

Description: Switching Voltage Regulators 2.2Mhz wide VIN automotive non-synchronous boost/SEPIC/flyback cntr with spread spectrum and hiccup

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PCB Footprints
LM51561QDSSRQ1 - Texas Instruments PCB footprint - Small Outline No-lead - Small Outline No-lead - DSS0012B
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LM51561QDSSRQ1 - Texas Instruments  - 3D model - Small Outline No-lead - DSS0012B
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LM51561QDSSRQ1 Details

  • Manufacturer Part Number:

    LM51561QDSSRQ1

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Date Of Intro:

    2020-03-01

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    60 V

  • Input Voltage-Min:

    1.5 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    R-PDSO-N12

  • JESD-609 Code:

    e3

  • Length:

    3 mm

  • Moisture Sensitivity Level:

    2

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    12

  • Operating Temperature-Max:

    150 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    15 A

  • Output Voltage-Max:

    300 V

  • Output Voltage-Min:

    1.5 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SON

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, HEAT SINK/SLUG

  • Peak Reflow Temperature (Cel):

    260

  • Screening Level:

    AEC-Q100

  • Supply Current-Max (Isup):

    0.58 mA

  • Supply Voltage-Nom (Vsup):

    12 V

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK-BOOST

  • Switching Frequency-Max:

    2200 kHz

  • Technology:

    BICMOS

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Tin (Sn)

  • Terminal Form:

    NO LEAD

  • Terminal Position:

    DUAL

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

    30

  • Width:

    2 mm

LM51561QDSSRQ1 Frequently Asked Questions (FAQs)

  • A 2-layer or 4-layer PCB with a solid ground plane and thermal vias is recommended. The device should be placed near a thermal pad or heat sink to dissipate heat efficiently.
  • Use a soft-start circuit to limit inrush current and ensure reliable start-up. Also, ensure that the input voltage is within the recommended range (4.5V to 60V) and that the device is properly bypassed with capacitors.
  • Choose an inductor with a high saturation current rating and low DCR. Select a capacitor with a high ripple current rating and low ESR. The inductor and capacitor values should be chosen to ensure a stable output voltage and minimize ripple.
  • Use a current sense resistor to monitor the output current and implement overcurrent protection (OCP) using an external circuit. Also, use a voltage supervisor or overvoltage protection (OVP) circuit to detect and respond to overvoltage conditions.
  • Ensure good airflow around the device, and use a heat sink or thermal pad to dissipate heat. The device's thermal pad should be soldered to a solid ground plane or heat sink to ensure efficient heat dissipation.

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About Texas Instruments

Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.

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