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Showing 6 results View by: Thread Post Sort by
  • LM27761EVM: Two possible voltage output.

    serge faublas
    serge faublas
    Part Number: LM27761EVM Other Parts Discussed in Thread: LM27761 , LM339A According to the data sheet, the formula for Vout is -1.22*(R1+R2)/R2 where Vfb should be (1.22) between 1.202V and 1.238V So I choose R1=115K and R2=499K to get Vout=-1.5V However…
    • over 1 year ago
    • Power management
    • Power management forum
  • Answered
  • LM27761EVM: Mechanical documentation

    Adam Marszalek S.T
    Adam Marszalek S.T
    Resolved
    Part Number: LM27761EVM Hello, is it possible to obtain mechanical files (or gerbers) for this EVM. What I need is outline dimension and mounting holes position. I want to embed this board in my hand-solder friendly design but currenty don't have…
    • Resolved
    • over 5 years ago
    • Power management
    • Power management forum
  • RE: LM27761: Spice simulation model issue

    Andreas Mueller
    Andreas Mueller
    Hello Joselito, I tried to start up the LM27761EVM slowly as described in the thread. Vin of 5V was ramped up within 1.25ms. The output voltage was generated without any problems. Best regards, Andreas.
    • 7 months ago
    • Power management
    • Power management forum
  • Answered
  • RE: LM27761: How to have output voltage to be stable at -2.7V when the output current is 200mA and input voltage is 3V

    Hao Wang14
    Hao Wang14
    Resolved
    Hi Febin, It's tested on LM27761EVM. Thanks! Best Regards! Hao
    • over 4 years ago
    • Power management
    • Power management forum
  • RE: LM27761: LM27761DSG failure problem

    Stefano Panaro
    Stefano Panaro
    Hello user, Thanks for your question and sorry for the late answer. The topic of current limiting resistor on EN pin is strictly dependent on the specific device implementation. Referring to the EVM ( Using the LM27761EVM Evaluation Module ), you can see…
    • over 4 years ago
    • Power management
    • Power management forum
  • RE: LM27761 switching spurs: is there a way to reduce amplitude of the switching spurs

    Juha Karttunen
    Juha Karttunen
    Hi, Did you replace LDO output capacitor or charge pump output capacitor? If you have not replaced charge pump output capacitor, that is one thing you could try. You might have to also increase value of the flying capacitor. Another thing is DC bias…
    • over 8 years ago
    • Power management
    • Power management forum

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