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LM309H - Texas Instruments

Description: Linear Voltage Regulators 1A 5V output linear regulator / LDO in hermetic packages 3-TO 0 to 125

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LM309H - Texas Instruments PCB footprint - Other - Other - LM309H-2
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LM309H Details

  • Manufacturer Part Number:

    LM309H

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    TO-39

  • Pin Count:

    3

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Adjustability:

    FIXED

  • Dropout Voltage1-Nom:

    1.95 V

  • Input Voltage Absolute-Max:

    35 V

  • Input Voltage-Max:

    35 V

  • Input Voltage-Min:

    7.1 V

  • JESD-30 Code:

    O-MBCY-W3

  • JESD-609 Code:

    e4

  • Length:

    8.255 mm

  • Line Regulation-Max:

    0.05%

  • Load Regulation-Max:

    0.05%

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    3

  • Operating Temperature TJ-Max:

    125 °C

  • Operating Temperature-Max:

    125 °C

  • Output Current1-Max:

    1 A

  • Output Voltage1-Max:

    5 V

  • Output Voltage1-Min:

    5 V

  • Output Voltage1-Nom:

    5 V

  • Package Body Material:

    METAL

  • Package Code:

    TO-39

  • Package Equivalence Code:

    CAN3/4,.2

  • Package Shape:

    ROUND

  • Package Style:

    CYLINDRICAL

  • Qualification Status:

    Not Qualified

  • Regulator Type:

    FIXED POSITIVE SINGLE OUTPUT STANDARD REGULATOR

  • Seated Height-Max:

    4.7 mm

  • Surface Mount:

    NO

  • Technology:

    BIPOLAR

  • Terminal Finish:

    Gold (Au)

  • Terminal Form:

    WIRE

  • Terminal Pitch:

    4.699 mm

  • Terminal Position:

    BOTTOM

  • Voltage Tolerance-Max:

    5%

  • Width:

    8.255 mm

LM309H Frequently Asked Questions (FAQs)

  • The LM309H can handle input voltages up to 35V, but it's recommended to keep the input voltage at least 2V higher than the output voltage to ensure proper regulation.
  • To ensure stability, use a minimum output capacitance of 10uF with an ESR (Equivalent Series Resistance) of less than 5 ohms, and a minimum input capacitance of 0.1uF. Also, keep the input and output capacitors close to the regulator.
  • The LM309H can provide up to 1A of output current, but it's recommended to derate the output current based on the input voltage and ambient temperature to ensure reliable operation.
  • Use a heat sink with a thermal resistance of less than 50°C/W to keep the junction temperature below 125°C. Also, ensure good airflow around the regulator and avoid operating it in high-temperature environments.
  • No, the LM309H is a linear voltage regulator and is not designed for use in switching regulator applications. It's intended for use in linear power supply applications where a fixed output voltage is required.

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LM309H 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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