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L7812T - STMicroelectronics

Description: Linear Voltage Regulator IC Positive Fixed 1 Output 1.5A TO-3

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L7812T - STMicroelectronics - PCB symbol
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L7812T - STMicroelectronics PCB footprint - Other - Other - L7812T-2
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L7812T Details

  • Manufacturer Part Number:

    L7812T

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    TO-204AA

  • Package Description:

    TO-3, 3 PIN

  • Pin Count:

    2

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    0

  • Adjustability:

    FIXED

  • Dropout Voltage1-Nom:

    2 V

  • Input Voltage Absolute-Max:

    35 V

  • Input Voltage-Max:

    30 V

  • Input Voltage-Min:

    14.5 V

  • JESD-30 Code:

    O-MBFM-P2

  • JESD-609 Code:

    e0

  • Line Regulation-Max:

    0.12%

  • Load Regulation-Max:

    0.1%

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    2

  • Operating Temperature TJ-Max:

    150 °C

  • Operating Temperature TJ-Min:

    -55 °C

  • Output Current1-Max:

    1.5 A

  • Output Voltage1-Max:

    12.6 V

  • Output Voltage1-Min:

    11.4 V

  • Output Voltage1-Nom:

    12 V

  • Package Body Material:

    METAL

  • Package Code:

    TO-3

  • Package Equivalence Code:

    TO-204/-3

  • Package Shape:

    ROUND

  • Package Style:

    FLANGE MOUNT

  • Qualification Status:

    Not Qualified

  • Regulator Type:

    FIXED POSITIVE SINGLE OUTPUT STANDARD REGULATOR

  • Surface Mount:

    NO

  • Technology:

    BIPOLAR

  • Terminal Finish:

    Tin/Lead (Sn/Pb)

  • Terminal Form:

    PIN/PEG

  • Terminal Position:

    BOTTOM

  • Voltage Tolerance-Max:

    5%

L7812T Frequently Asked Questions (FAQs)

  • The maximum input voltage that can be applied to the L7812T is 35V, but it's recommended to keep it below 25V for reliable operation and to prevent overheating.
  • The L7812T is rated for operation up to 125°C, but its performance and reliability may degrade at high temperatures. It's recommended to use a heat sink and ensure good airflow to keep the device within its operating temperature range.
  • The power dissipation of the L7812T can be calculated using the formula: Pd = (Vin - Vout) x Iout, where Vin is the input voltage, Vout is the output voltage, and Iout is the output current. Make sure to consider the thermal resistance and junction temperature to ensure the device operates within its safe operating area.
  • No, the L7812T is a linear voltage regulator and is not suitable for use in switching regulator applications. It's designed to provide a stable output voltage by dissipating excess energy as heat, whereas switching regulators use high-frequency switching to minimize energy loss.
  • To ensure the stability of the L7812T output voltage, make sure to use a suitable output capacitor with a minimum value of 10uF and a low ESR (Equivalent Series Resistance). Additionally, ensure that the input voltage is well-regulated and free from noise and ripple.

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L7812T 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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