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Showing 26 results View by: Thread Post Sort by
  • Almog Azulay
    Almog Azulay
    • 9 months ago
    • Power management
    • Power management forum

    RE: LM337-N: The Output voltage is dropped and not stabilized

    The -54 V is power-up when the simulation starts and after that the voltage at a steady state. I measured on parallel resistor (40ohm) 100mA (as it should be in a PCB), and the VOut regulator stays stable. at real PCB Vout it is dropped and No power...
  • Vadim Utkin
    Vadim Utkin
    • over 1 year ago
    • Power management
    • Power management forum

    LM337-N: LM337-N

    • Resolved
    Part Number: LM337 - N Hello, dear colleague. We have product LM337IMP/NOPB. There is marking on top
  • Ryan Eslinger
    Ryan Eslinger
    • over 1 year ago
    • Power management
    • Power management forum

    RE: LM337: About LM337

    Hi Yokota, Cadj should be placed in parallel to R2. Below please find an example schematic from the similar LM337-N datasheet. The LM337-N is a very similar device that was released by National Semiconductor before the TI acquisition. A 10 uF Cadj...
  • Richard Elmquist
    Richard Elmquist
    • over 4 years ago
    • Power management
    • Power management forum

    LM337-N: LM337-N Temperature Specifications

    TI Thinks Resolved
    Part Number: LM337-N It seems that the temperature specifications for the LM337T version of this IC changed from -40C to 125C to 0C to 125C between version D of the data sheet and version E. Is this a valid change or was this simply a mistake in the documentation...
  • Gerard Copeland
    Gerard Copeland
    • over 2 years ago
    • Power management
    • Power management forum

    RE: LM337L: Ripple rejection performance

    Hi Stefan, The LM337-N was originally released as a National Semiconductor device while the LM337L was released by TI. Although they have the same part number, they were initially designed by different companies, so it is not safe to assume that they...
  • Ryan Eslinger
    Ryan Eslinger
    • over 1 year ago
    • Power management
    • Power management forum

    RE: TPS7A4001: TPS7A4001 negative power supply

    Hi , TPS7A4001 is designed, characterized, and tested as a positive voltage regulator. LM137 and LM337-N are adjustable 3-terminal negative voltage regulators. Since these negative regulators do not have a GND pin, the only limitation is that the Vin...
  • Ryan Eslinger
    Ryan Eslinger
    • over 2 years ago
    • Power management
    • Power management forum

    RE: TPS7A47-Q1: Linear Regulator

    Hi Sergey, Unfortunately we do not have any automotive qualified negative regulators that can meet your input voltage and current requirements. Our closest fit to your application is TPS7A33 which has a typical noise of 16 uVrms. TPS7A33 is commonly...
  • Gerard Copeland
    Gerard Copeland
    • over 2 years ago
    • Power management
    • Power management forum

    RE: LM2940C: For Negative voltage

    Hi, The LM2940C was designed as a positive LDO voltage regulator with a recommended operating input voltage of 6 V to 26 V. To ensure consistent and reliable operation, this device should not be used with a negative input voltage. The LM337-N and...
  • Howard Zou
    Howard Zou
    • over 2 years ago
    • Power management
    • Power management forum

    RE: LM79: do we have industrial grade(-40 to 85 C) negative LDO?

    I find that only LM337-N is within comparable price with LM79, but it's not pin to pin. I have customers using LM79 from ST of industrial grade.
  • Scott Taylor
    Scott Taylor
    • over 5 years ago
    • Power management
    • Power management forum

    RE: LM337IMP Output Has 180mV Sawtooth Ripple

    Michael, Not sure what you mean by LM337-N. All recent designs use the LM337IMP. Some were lead free others not. Yes, adding 100uF is a workable solution. 100uF tantalums have been super glued upside down next to the 10uF ceramics. It does occur to...
>

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