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LM337LZ - Texas Instruments

Description: TEXAS INSTRUMENTS - LM337LZ - Linear Voltage Regulator, Adjustable, 40V primary input, -37V to -1.2V/100 mA/1 Output, TO-92-3

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LM337LZ - Texas Instruments - PCB symbol
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PCB Footprints
LM337LZ - Texas Instruments PCB footprint - Other - Other - Z03A
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LM337LZ - Texas Instruments - 3D model - Other - Z03A
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LM337LZ Details

  • Manufacturer Part Number:

    LM337LZ

  • Pbfree Code:

    No

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    TO-92

  • Package Description:

    TO-92, 3 PIN

  • Pin Count:

    3

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Adjustability:

    ADJUSTABLE

  • Dropout Voltage1-Nom:

    3 V

  • Input-Output Voltage Differential-Max:

    40 V

  • Input-Output Voltage Differential-Min:

    3 V

  • JESD-30 Code:

    O-PBCY-W3

  • JESD-609 Code:

    e0

  • Line Regulation-Max (%/V):

    0.07

  • Load Regulation-Max(%):

    1.5%

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    3

  • Operating Temperature TJ-Max:

    125 °C

  • Operating Temperature TJ-Min:

    -25 °C

  • Output Current1-Max:

    0.1 A

  • Output Voltage1-Max:

    37 V

  • Output Voltage1-Min:

    1.2 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

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Regulator Type:

    ADJUSTABLE NEGATIVE SINGLE OUTPUT STANDARD REGULATOR

  • Surface Mount:

    NO

  • Technology:

    BIPOLAR

  • Terminal Finish:

    TIN LEAD

  • Terminal Form:

    WIRE

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    BOTTOM

  • Time@Peak Reflow Temperature-Max (s):

    40

LM337LZ Frequently Asked Questions (FAQs)

  • The minimum input voltage required for the LM337LZ to operate is 3V above the output voltage. For example, if the output voltage is 5V, the minimum input voltage would be 8V.
  • While the LM337LZ can handle up to 1.5A of output current, it's not recommended for high-current applications due to thermal limitations. For high-current applications, consider using a switching regulator or a more robust linear regulator like the LM338.
  • To ensure stability, make sure to use a minimum output capacitance of 10uF, and consider adding a 1uF to 10uF capacitor between the input and output pins to improve transient response. Additionally, keep the input and output pins as close as possible to minimize inductance.
  • Yes, the LM337LZ can be used in battery-powered devices, but be aware of the quiescent current (IQ) which is around 5mA. This can affect battery life, especially in low-power applications. Consider using a low-IQ regulator or a switching regulator for battery-powered devices.
  • To protect the LM337LZ from input voltage surges or spikes, consider adding a transient voltage suppressor (TVS) diode or a voltage clamp circuit between the input pin and ground. This can help prevent damage to the regulator and ensure reliable operation.

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LM337LZ 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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