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Showing 43 results View by: Thread Post Sort by
    Answered
  • LM2731: adjust the start up time

    kevin p
    kevin p
    Resolved
    Part Number: LM2731 Hello team, I use LM2731 in my design. I want to slow start to reduce inrush current on the power supply when power on, I add RC on the SHDN pin. the R=47k, C=1UF,the input power is 5V, output is 12V,I want to delay ~20ms to…
    • Resolved
    • over 6 years ago
    • Power management
    • Power management forum
  • Answered
  • RE: WEBENCH® Tools/LM2731: Webench Model for LM2731Y

    Amod Vaze
    Amod Vaze
    Resolved
    Thanks for the information Arthur. I just found out that LM2731Y is not enabled in the WEBENCH tool. However, since you are interested in transient responses to analyze stability, you could use the available PSPICE transient model for LM2731Y from http…
    • over 6 years ago
    • Simulation, hardware & system design tools
    • Simulation, hardware & system design tools forum
  • LM2731: Can SHDN pin do soft-start function?

    Richard Ma1
    Richard Ma1
    TI Thinks Resolved
    Part Number: LM2731 I see SC4503 can do soft-start by connected SHDN pin on external Rss/Css. Can LM2731 do the same thing? https://www.semtech.com/uploads/documents/sc4503.pdf
    • over 6 years ago
    • Power management
    • Power management forum
  • LM2731: Why does the Vout change bigger?

    Lian Wu
    Lian Wu
    TI Thinks Resolved
    Part Number: LM2731 Dears: From the datasheet when the VOUT is 12V, and the Iout is 500mA. However, when we test our board Vout will change bigger if the load is bigger. Could you kindly help to check the schematic and give some suggestions about…
    • over 8 years ago
    • Power management
    • Power management forum
  • LM2731: How can i remove the over shooting on VOUT

    Amaury LAINE
    Amaury LAINE
    TI Thinks Resolved
    Part Number: LM2731 Hello everyone, I would like to have some help about the booster LM2731. My voltage input is 3.3V and Vout 7 V. I have a minimal load of 0.01mA. Here is the ripple on the output. I have around 200mV of over shooting on the…
    • over 7 years ago
    • Power management
    • Power management forum
  • LM2731: Heating/Failing Issues on Start-Up

    JP
    JP
    Part Number: LM2731 Hello Team, I am working with a customer who is using the LM2731 in their circuit to boost 5Vin to 12Vout. They noticed that they would every now and then have heating issues on their output capacitor, and also have catastrophic…
    • over 8 years ago
    • Power management
    • Power management forum
  • Answered
  • LM2731 not switching

    Andy Mitham
    Andy Mitham
    Resolved
    Other Parts Discussed in Thread: LM2731 Hi, Has anyone had any experience of problems with the LM2731? I've used two in a new board that I'm working on. I'm feeding in 3.3V and have it configured for 5V output. I initially tried these unloaded, and…
    • Resolved
    • over 12 years ago
    • Power management
    • Power management forum
  • Answered
  • thetaJC(Janction to Case) of LM2731

    Ryuji
    Ryuji
    Resolved
    Other Parts Discussed in Thread: LM2731 Hello, Could you please kindly let me know about LM2731? (1) Please let me know theta JC of LM2731? I can find theta JA in the datasheet, but I need theta JC information. If there is no data of theta…
    • Resolved
    • over 12 years ago
    • Power management
    • Power management forum
  • Answered
  • RE: Questions of LM2731 : Discontinuous operation, Duty Cycle, In/Out Voltage difference

    Ryuji
    Ryuji
    Resolved
    Hello Jimmy , Thank you for your prompt reply! I would like to know more demerit of DCM (difference between CCM and DCM) if there are. For example, low efficiency , oscillation etc... If demerit is large peak inductor current only, It is…
    • over 13 years ago
    • Power management
    • Power management forum
  • Answered
  • LM27313: Marking

    Jack Barret
    Jack Barret
    Resolved
    Part Number: LM27313 Other Parts Discussed in Thread: LM2731 Tool/software: Hello! Several suppliers offer to buy microcircuits with this marking. The markings have crooked symbols. Is this the original marking? Thank you! Best regards, Jack Barret
    • Resolved
    • over 1 year ago
    • Data converters
    • Data converters forum
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