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MC79L12ACLP - Texas Instruments

Description: 3-pin, 100mA, Fixed Negative Voltage Regulator

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MC79L12ACLP - Texas Instruments - PCB symbol
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PCB Footprints
MC79L12ACLP - Texas Instruments PCB footprint - Other - Other - LP0003A_2021_1
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3D Models
MC79L12ACLP - Texas Instruments - 3D model - Other - LP0003A_2021_1
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MC79L12ACLP Details

  • Manufacturer Part Number:

    MC79L12ACLP

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    TO-92

  • Pin Count:

    3

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Adjustability:

    FIXED

  • Dropout Voltage1-Nom:

    1.7 V

  • Input Voltage Absolute-Max:

    35 V

  • Input Voltage-Max:

    27 V

  • Input Voltage-Min:

    14.5 V

  • JESD-30 Code:

    O-PBCY-T3

  • JESD-609 Code:

    e3

  • Length:

    4.3 mm

  • Line Regulation-Max:

    0.25%

  • Load Regulation-Max:

    0.1%

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    3

  • Operating Temperature TJ-Max:

    125 °C

  • Output Current1-Max:

    0.1 A

  • Output Voltage1-Max:

    12.6 V

  • Output Voltage1-Min:

    11.4 V

  • Output Voltage1-Nom:

    12 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TO-92

  • Package Equivalence Code:

    SIP3,.1,50

  • Package Shape:

    ROUND

  • Package Style:

    CYLINDRICAL

  • Packing Method:

    BULK

  • Qualification Status:

    Not Qualified

  • Regulator Type:

    FIXED NEGATIVE SINGLE OUTPUT STANDARD REGULATOR

  • Seated Height-Max:

    5.34 mm

  • Surface Mount:

    NO

  • Technology:

    BIPOLAR

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    BOTTOM

  • Voltage Tolerance-Max:

    5%

  • Width:

    4.3 mm

MC79L12ACLP Frequently Asked Questions (FAQs)

  • A good PCB layout for the MC79L12ACLP should include a solid ground plane, wide power traces, and a thermal relief pattern under the package to facilitate heat dissipation. TI provides a recommended PCB layout in the datasheet.
  • To ensure stable output voltage regulation, ensure that the input voltage is within the recommended range, the output capacitor is of sufficient value and type, and the feedback resistors are properly selected. Additionally, minimize noise and ripple on the input voltage and output voltage lines.
  • The maximum output current capability of the MC79L12ACLP is 1.5A, but this can be limited by the thermal performance of the package and the PCB. Ensure that the device is properly heatsinked and the PCB is designed for optimal thermal performance.
  • The MC79L12ACLP is rated for operation up to 125°C, but the device's performance and reliability may degrade at high temperatures. Ensure that the device is properly heatsinked and the PCB is designed to minimize thermal resistance.
  • To protect the MC79L12ACLP from input voltage transients, use a TVS diode or a transient voltage suppressor (TVS) in parallel with the input capacitor. This will help to clamp the input voltage and prevent damage to the device.

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MC79L12ACLP Overview

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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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