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LM137K - STMicroelectronics

Description: STMicroelectronics, -37 → -1.2 V Voltage Regulator, 1.5A, 1-Channel Negative, Adjustable 3-Pin, TO-3 LM137K

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LM137K - STMicroelectronics PCB footprint - Other - Other - LM137K-1
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LM137K - STMicroelectronics  - 3D model - Other - LM137K-1
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LM137K Details

  • Manufacturer Part Number:

    LM137K

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    TO-204AA

  • Package Description:

    TO-3, 2 PIN

  • Pin Count:

    2

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    0

  • Adjustability:

    ADJUSTABLE

  • Input-Output Voltage Differential-Max:

    40 V

  • Input-Output Voltage Differential-Min:

    3 V

  • JESD-30 Code:

    O-MBFM-P2

  • JESD-609 Code:

    e3

  • Line Regulation-Max (%/V):

    0.02

  • Load Regulation-Max(%):

    0.5%

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    2

  • 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:

    37 V

  • Output Voltage1-Min:

    1.2 V

  • Package Body Material:

    METAL

  • Package Code:

    BFM

  • Package Equivalence Code:

    TO-204/-3

  • Package Shape:

    ROUND

  • Package Style:

    FLANGE MOUNT

  • Qualification Status:

    Not Qualified

  • Regulator Type:

    ADJUSTABLE NEGATIVE SINGLE OUTPUT STANDARD REGULATOR

  • Surface Mount:

    NO

  • Technology:

    BIPOLAR

  • Terminal Finish:

    MATTE TIN

  • Terminal Form:

    PIN/PEG

  • Terminal Position:

    BOTTOM

LM137K Frequently Asked Questions (FAQs)

  • The maximum power dissipation of the LM137K is 1.5W, and it's recommended to use a heat sink to ensure reliable operation.
  • To ensure stability, it's recommended to use a minimum output capacitance of 10uF, and to place the capacitor close to the output pin. Additionally, a 1uF capacitor between the adjust pin and ground can help improve stability.
  • The minimum input voltage required for the LM137K to operate is 3V, but it's recommended to use a minimum input voltage of 4.5V to ensure reliable operation.
  • Yes, the LM137K can be used as a current source by connecting a resistor between the output pin and the adjust pin. The current output will be proportional to the voltage across the resistor.
  • To protect the LM137K from overvoltage, it's recommended to use a voltage clamp or a zener diode between the input pin and ground. This will prevent the input voltage from exceeding the maximum rating of 15V.

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LM137K 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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