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  • LM27403EVM: is it possible to get the Altium design files for the eval board LM27403EVM?

    Resolved
    Part Number: LM27403EVM Tool/software: it's not efficient to track down nets in a gerber or pdf images... Thanks
    • Resolved

  • LM27403EVM-POL600: Motherboard gerber and design files

    TI Thinks Resolved
    Part Number: LM27403EVM-POL600 Other Parts Discussed in Thread: LM27403 Tool/software: From a previous post, TI provide me the Gerbers and other fab documentation package LM27403_POL600_SV600821.zip, but this archive does not include the files for the motherboard…

  • LM27403EVM: How to use at Vin = 3V

    TI Thinks Resolved
    Part Number: LM27403EVM Other Parts Discussed in Thread: LM27403 , Hello I have a question about the LM27403. Verification is performed using LM27403EVM. Specifications: Vin = 3V-20V Vout = 1.2V (no EVM setting change) For EVM input: 7-20V, I am thinking to…
    • Answered

  • LM27402: 12-V to POL 1 MHz, external gate driver, synchronous buck controller recommendation

    Resolved
    Part Number: LM27402 Other Parts Discussed in Thread: CSD86350Q5D , LM27403EVM-POL600 , TPS53632 , LM27403 Tool/software: I am working on a POL module that can do 12V-1V (and other standard POL output voltages). I like the design in LM27403EVM-POL600 and…
    • Resolved
    • Answered

  • RE: LM27403: Loop Filter Design - Instability

    Resolved
    The 1us/div oscilloscope plot does not have the periodicity I am expecting. Do you have an oscilloscope plot with the SW and Vout on the same plot? The above measured bode plot implies stability with 70 degrees phase margin. I measured the LM27403EVM…
    • Answered

  • LM27403: On-time SW-node Jitter

    Resolved
    Part Number: LM27403 Hello, I am experiencing some on-time jitter on the switching-node output of my LM27403 circuit. I can provide all component values if needed, however I have observed the same node on the LM27403EVM and the percentage of jitter measured…
    • Resolved
    • Answered

  • RE: LM27403: Calculation Confusion and disconnects, Webench, Design Spreadsheet, Datasheet, Reference Design, Evaluation Board

    Resolved
    Here is a photo. The board I have is the LM27403EVM-POL600. Since this is a mature device, why does TI provide tools that don't work? And, why doesn't TI clean up conflicting design information? Thanks,
    • Answered

  • RE: LM27403: No voltage at low temperature.

    Resolved
    Dear John, The Cvdd is closed to IC ,As shown below. C6 is the Cvdd. And, my schematic is the same as the LM27403EVM . The waveform show as below CH1: Vsw CH2:Vdd CH3: Vin CH4:Vo Is there any problem with the waveform. Because it's working norm…

  • LM27403 Current Problem without any load

    Other Parts Discussed in Thread: LM27403 , LM27403EVM-POL600 Hi guys, I design LM27403 Module according to LM27403EVM-POL600 User's Guide but my board consume 100mA current while no load connected to the output and it causes switching Inductor become warm…

  • LM27403 Unstable condition Problem

    Other Parts Discussed in Thread: LM27403 , LM27403EVM-POL600 Hi guys, I design a board With LM27403 Switching according to its user's guide. my Design is completely match with LM27403EVM-POL600 but my pcb specially inductor become very hot and my output…

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