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L4973V5.1 - STMicroelectronics

Description: L4973V5.1, DC-DC Converter, 3.5A Adjustable, 5.1 → 50 V, Step Down, 0.3 MHz, 18-Pin PDIP

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PCB Footprints
L4973V5.1 - STMicroelectronics PCB footprint - Dual-In-Line Packages - Dual-In-Line Packages - DIP-18_2020
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3D Models
L4973V5.1 - STMicroelectronics  - 3D model - Dual-In-Line Packages - DIP-18_2020
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L4973V5.1 Details

  • Manufacturer Part Number:

    L4973V5.1

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    DIP

  • Package Description:

    LEAD FREE, PLASTIC, DIP-18

  • Pin Count:

    18

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    0

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    VOLTAGE-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    55 V

  • Input Voltage-Min:

    8 V

  • Input Voltage-Nom:

    24 V

  • JESD-30 Code:

    R-PDIP-T18

  • JESD-609 Code:

    e3

  • Length:

    24.8 mm

  • Number of Functions:

    1

  • Number of Terminals:

    18

  • Operating Temperature-Max:

    150 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    5.5 A

  • Output Voltage-Max:

    5.11 V

  • Output Voltage-Min:

    5.09 V

  • Output Voltage-Nom:

    5.1 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    DIP

  • Package Equivalence Code:

    DIP18,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    IN-LINE

  • Peak Reflow Temperature (Cel):

    NOT SPECIFIED

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    5.1 mm

  • Surface Mount:

    NO

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    300 kHz

  • Technology:

    BCDMOS

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    DUAL

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

    NOT SPECIFIED

  • Width:

    7.62 mm

L4973V5.1 Frequently Asked Questions (FAQs)

  • The maximum input voltage that can be applied to the L4973V5.1 is 40V, but it's recommended to keep it below 30V for reliable operation.
  • To ensure stability, make sure to use the recommended output capacitor value and type, and keep the input capacitor value below 10uF. Also, ensure the PCB layout is well-designed and follows good practices.
  • The minimum input voltage required for the L4973V5.1 to operate is 6.5V, but it's recommended to keep it above 7V for reliable operation.
  • The L4973V5.1 is rated for operation up to 150°C, but it's recommended to derate the output current and voltage at high temperatures to ensure reliable operation.
  • The output voltage of the L4973V5.1 can be calculated using the formula: Vout = Vref x (1 + R2/R1), where Vref is the internal reference voltage (1.235V), and R1 and R2 are the feedback resistors.

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L4973V5.1 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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