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L5973AD - STMicroelectronics

Description: L5973AD, Switching Regulator, Buck Controller,, Adjustable, 1.235 to 35V, 500kHz, 8-Pin HSOP-EP

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L5973AD - STMicroelectronics PCB footprint - Small Outline Packages - Small Outline Packages - HSOP8_1
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L5973AD Details

  • Manufacturer Part Number:

    L5973AD

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOIC

  • Package Description:

    EXPOSED PAD, HSOP-8

  • Pin Count:

    8

  • Country Of Origin:

    Mainland China, Philippines

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    12 Weeks

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    8

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    VOLTAGE-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    36 V

  • Input Voltage-Min:

    4.4 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e3

  • Length:

    4.9 mm

  • Moisture Sensitivity Level:

    3

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    150 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    2.3 A

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HSOP

  • Package Equivalence Code:

    SOP8,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, HEAT SINK/SLUG

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.75 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK-BOOST

  • Technology:

    MOS

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    3.9 mm

L5973AD Frequently Asked Questions (FAQs)

  • The L5973AD can handle a maximum input voltage of 30V, but it's recommended to keep it below 28V for reliable operation.
  • The inductor value depends on the output voltage, output current, and switching frequency. A good starting point is to use the inductor value calculation formula provided in the datasheet, and then adjust based on the specific application requirements.
  • The EN (Enable) pin is used to enable or disable the device. When EN is high, the device is enabled, and when EN is low, the device is disabled. This pin can be used to implement power sequencing or to shut down the device when not in use.
  • To ensure the L5973AD operates within the recommended operating junction temperature range (TJ = -40°C to 150°C), make sure to provide adequate heat sinking, use a thermally conductive PCB, and avoid high ambient temperatures.
  • Key considerations for PCB layout include keeping the high-current paths short and wide, using a solid ground plane, and placing the input and output capacitors close to the device. Additionally, ensure that the inductor is placed away from sensitive analog circuits.

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L5973AD Overview

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About STMicroelectronics

STMicroelectronics (ST) is a global semiconductor company that designs, manufactures, and markets a broad range of integrated circuits (ICs), discrete devices, and other electronic components. STMicroelectronics offers a diverse portfolio of semiconductor products covering a wide range of applications and industries. Their product categories include microcontrollers, analog and mixed-signal ICs, MEMS (Micro-Electro-Mechanical Systems) sensors, power management ICs, RF (Radio Frequency) transceivers, aut

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