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E-L4971D - STMicroelectronics

Description: 1.5A step down switching regulator

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E-L4971D - STMicroelectronics PCB footprint - Small Outline Packages - Small Outline Packages - SO-16W_2024
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E-L4971D Details

  • Manufacturer Part Number:

    E-L4971D

  • Brand Name:

    STMicroelectronics

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC

  • Package Description:

    ROHS COMPLIANT, SO-16

  • Pin Count:

    16

  • 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-PDSO-G16

  • Length:

    10.3 mm

  • Number of Functions:

    1

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    150 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    3 A

  • Output Voltage-Max:

    3.01 V

  • Output Voltage-Min:

    2.99 V

  • Output Voltage-Nom:

    3.6 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    2.65 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    300 kHz

  • Technology:

    BCDMOS

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

  • Width:

    7.5 mm

E-L4971D Frequently Asked Questions (FAQs)

  • STMicroelectronics provides a recommended PCB layout in the application note AN4553, which includes guidelines for component placement, routing, and thermal management to ensure optimal performance and minimize electromagnetic interference (EMI).
  • The input capacitor value depends on the input voltage, output voltage, and output current. A general rule of thumb is to choose a capacitor with a value between 10uF to 22uF, with a voltage rating at least 1.5 times the input voltage. Consult the datasheet and application notes for more specific guidance.
  • The E-L4971D is rated for operation up to 150°C ambient temperature, but it's recommended to derate the output current and voltage to ensure reliable operation above 125°C. Consult the datasheet and thermal management guidelines for more information.
  • To ensure EMC compliance, follow the recommended PCB layout, use a shielded inductor, and add EMI filters as necessary. Additionally, consult the application note AN4553 and relevant EMC standards (e.g., EN 55022) for more guidance.
  • The output capacitor value and type depend on the output voltage, output current, and desired ripple voltage. A general rule of thumb is to choose a low-ESR capacitor (e.g., ceramic or polymer) with a value between 10uF to 47uF, with a voltage rating at least 1.5 times the output voltage. Consult the datasheet and application notes for more specific guidance.

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E-L4971D 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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