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LM137H - Texas Instruments

Description: Extended Temperature 1.5A Adjustable Output Negative Voltage Regulator / LDO

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LM137H - Texas Instruments PCB footprint - Other - Other - NDT0003A
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LM137H - Texas Instruments  - 3D model - Other - NDT0003A
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LM137H Details

  • Manufacturer Part Number:

    LM137H

  • 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:

    ADJUSTABLE

  • Dropout Voltage1-Nom:

    3 V

  • Input Voltage-Max:

    4.2 V

  • Input Voltage-Min:

    40 V

  • Input-Output Voltage Differential-Max:

    40 V

  • Input-Output Voltage Differential-Min:

    3 V

  • JESD-30 Code:

    O-MBCY-W3

  • JESD-609 Code:

    e4

  • Length:

    8.255 mm

  • Line Regulation-Max (%/V):

    0.05

  • Load Regulation-Max(%):

    1%

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    3

  • Operating Temperature TJ-Max:

    150 °C

  • Operating Temperature TJ-Min:

    -55 °C

  • Operating Temperature-Max:

    150 °C

  • Operating Temperature-Min:

    -55 °C

  • Output Current1-Max:

    1.5 A

  • Output Voltage1-Max:

    -1.2 V

  • Output Voltage1-Min:

    -37 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:

    ADJUSTABLE NEGATIVE 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:

    4%

  • Width:

    8.255 mm

LM137H Frequently Asked Questions (FAQs)

  • The maximum power supply voltage for the LM137H is 30V, but it's recommended to operate it between 10V to 25V for optimal performance.
  • To ensure stability, it's essential to use a minimum output capacitance of 10uF, and a minimum ESR (Equivalent Series Resistance) of 0.5 ohms. Additionally, the input capacitor should be at least 1uF with an ESR of 0.5 ohms or less.
  • The LM137H requires a minimum load current of 5mA to regulate properly. If the load current is less than 5mA, the output voltage may not be regulated accurately.
  • Yes, the LM137H can be used as a current source. The current limit pin (CL) can be used to set the maximum current output. However, the current limit accuracy is dependent on the external resistor and the input voltage.
  • To protect the LM137H from overheating, ensure good thermal conductivity between the device and the heat sink. The thermal resistance of the heat sink should be less than 10°C/W. Also, avoid operating the device at high ambient temperatures (above 50°C) for extended periods.

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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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