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L4963W - STMicroelectronics

Description: L4963W, Switching Regulator, Buck Controller,, Adjustable, 5.1 to 36V, 79kHz, 18, 20-Pin Power PDIP

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L4963W - STMicroelectronics PCB footprint - Dual-In-Line Packages - Dual-In-Line Packages - DIP-18_2020
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L4963W - STMicroelectronics  - 3D model - Dual-In-Line Packages - DIP-18_2020
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L4963W Details

  • Manufacturer Part Number:

    L4963W

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    DIP

  • Package Description:

    POWER, PLASTIC, DIP-18

  • Pin Count:

    18

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Date Of Intro:

    1980-01-04

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    0

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    VOLTAGE-MODE

  • Control Technique:

    PULSE FREQUENCY MODULATION

  • Input Voltage-Max:

    46 V

  • Input Voltage-Min:

    9 V

  • Input Voltage-Nom:

    30 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:

    6.5 A

  • Output Voltage-Max:

    36 V

  • Output Voltage-Min:

    5.1 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    DIP

  • Package Equivalence Code:

    DIP18,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    IN-LINE

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    5.1 mm

  • Surface Mount:

    NO

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    83 kHz

  • Technology:

    BIPOLAR

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    MATTE TIN

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    DUAL

  • Width:

    7.62 mm

L4963W Frequently Asked Questions (FAQs)

  • The L4963W can handle an input voltage up to 40V, but it's recommended to keep it below 36V 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 design requirements.
  • The EN (enable) pin is used to turn the converter on and off. It's an active-high input, so connect it to a logic high (e.g., VCC) to enable the converter, and connect it to a logic low (e.g., GND) to disable it.
  • Ensure good thermal design, including a suitable PCB layout, thermal vias, and a heat sink if necessary. Monitor the junction temperature using the thermal monitoring pin (TMP) and adjust the design as needed to keep the temperature within the recommended range (-40°C to 150°C).
  • Follow the recommended layout and placement guidelines in the datasheet, including keeping the input and output capacitors close to the IC, and using a solid ground plane to reduce noise and improve thermal performance.

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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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