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  • Output noise of TPS54540-Q1

    TI Thinks Resolved
    Other Parts Discussed in Thread: TPS54540-Q1 We have questions about TPS54540-Q1. Vin=30V Vout=5.5V Iout=3.7A Output noise increases under the following conditions. The above phenomenon can be seen with 1 out of 1,000. frequency=DC~100kHz temperature…

  • Between TPS54540-Q1 and TPS54540B-Q1

    TI Thinks Resolved
    Other Parts Discussed in Thread: TPS54540-Q1 , TPS54540B-Q1 We have questions about TPS54540-Q1. Question 1. Please tell us the difference between TPS54540-Q1 and TPS54540B-Q1. Question 2. Why do you release TPS54540B-Q1? TPS54540-Q1 is…
    • Answered

  • WEBENCH® Tools/TPS54540: IC ThetaJA Effective

    Resolved
    Part Number: TPS54540 Tool/software: WEBENCH® Design Tools Hi Our customer are going to simulate a thermal situation by WEBENCH. The result are as the following, https://webench.ti.com/appinfo/webench/scripts/SD2.cgi?ID=207497::power::hamamoto-k…
    • Resolved
    • Answered

  • RE: WEBENCH® Tools/TPS54540: Junction temperature by SW frequency

    Resolved
    Hi Sam, I appreciate you for the quick reply. I could be completely understood. What simple the issue is, once I know it! Thank you, Mina

  • RE: TPS54540: Two Converters in One PCB

    Hello Arief, Thank you for your response. LMS3655 seems to be over my budget. I think I will use TPS54540. I've read about adding a CMC to the input. There's also a suggestion to use pure inductor with a electrolytic capacitor as a LC input filter…
    • Answered

  • WEBENCH® Tools/TPS54540: Export design to MENTOR graphic Xpedition

    Resolved
    Part Number: TPS54540 Tool/software: WEBENCH® Design Tools Hello, i have a questions regardding WEBENCH and hope you can help me answer it: i tried to export a Webench design toward MENTOR graphic Xpedition but this didn't work. The only option available…
    • Resolved

  • RE: WEBENCH® Tools/TPS54540: ALTIUM: Model not found

    Hi Rolf, I believe you are trying to use "Altium designer" option under "Webench Sim Export" feature. In that case, I am able to download TPS54540 Altium design from Webench and run it locally without any issue. Please note that you need to download…

  • TPS54540: period that continue to Switch ON

    TI Thinks Resolved
    Part Number: TPS54540 We got circuit information and waveforms using with TPS54540 from customer. When they use this IC at 2Mhz switching.There is a period that continue to Switch ON.Please see attached. They would like to know why this phenomenon…

  • TPS54540: ORING buck power supplies outputs for redundancy.

    Part Number: TPS54540 I have two identical 21 V, 4 A, buck power supplies using TPS54540. This is done for redundancy for higher reliability. I need to "OR" the outputs. I can not diode OR them as there will be about 3 W dissipation in the diodes. …

  • TPS54540 - Can't handle inductive load.

    Other Parts Discussed in Thread: TPS54540 , LM3150 I've been testing my new power rails using the TPS54540 after finally figuring out that the assembly house mixed up a couple of parts. I did some measurements using a lab electronic load and everything…

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