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  • TPS564247: Layout check for tps564247 buck converter + ground layout

    TI Thinks Resolved
    Part Number: TPS564247 Tool/software: Hello, please check the layouts i suggest: layout 1: https://imgur.com/KosJpPj layout 2: https://imgur.com/KmwgNLv in layout 1, the big polymer cap is not facing the same direction as other parallel ceramics…

  • TPS564247: TPS564247DRLR is getting enabled without enable signal

    TI Thinks Resolved
    Part Number: TPS564247 We are encountering an issue where the 3.3V output is getting enabled even when the enable pin is left floating. Upon probing, we observe approximately 2.9V on the enable pin. How can this be prevented? Please find the schematic…

  • TPS564247: Negative output voltage setup

    TI Thinks Resolved
    Part Number: TPS564247 Tool/software: Dear TI Engineer, We plan to use TPS564247 to achieve positive and negative voltage output, with an input voltage range of 3.0V~4.5V, outputs of -2.2V and+0.95V, and a maximum current of 3A, The schematic is as…

  • TPS564247: TPS564247 ripple and noise, schematic check.

    TI Thinks Resolved
    Part Number: TPS564247 Other Parts Discussed in Thread: TPS2117 Tool/software: Hello, I previously made a similar topic here: https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1385832/tps564247-tps564247…

  • TPS564247: Short circuit protection for TPS564247 and TPS2117

    TI Thinks Resolved
    Part Number: TPS564247 Other Parts Discussed in Thread: TPS2117 , Tool/software: Hello, i have finished a design using tps564247 buck regulator for both 3.3v and 5v... as well as tps2117 power source switching ic. my max current consumption would…

  • TPS564247: tps564247 schematic and layout check

    TI Thinks Resolved
    Part Number: TPS564247 Tool/software: Hello, I have finished designing my design and need you to check it for me. Here are the images: https://slow.pics/c/5rXOFMiB Quick notes: - input is 12v for both switchers, one outputs 3.3v and the…
    • Answered

  • TPS564247: Vsw undershoots by nearly -2.5V

    Resolved
    Part Number: TPS564247 Tool/software: =================================== Vin=12V Vout=5V Ven = 4V load = 3Ω =================================== Cin1: 22uF x 5 GRM319R61C226ME15 Cin2: 0.1uF x 1 GRM155B31H104KE14D Cout1: 22uF x 3 GRM319R61C226ME15…
    • Resolved
    • Answered

  • TPS564247: Current carrying capacity and minimum pattern width

    Resolved
    Part Number: TPS564247 Tool/software: I used the following formula, which shows the temperature rise and pattern cross-sectional area of ​​MIL-STD-275E, as a reference. RefURL : keisan.casio.jp/.../1663912785 A: Cross-sectional area [mm^2] ..…
    • Resolved
    • Answered

  • TPS564247: Fsw range

    Resolved
    Part Number: TPS564247 Hi Team, Customer requested Fsw range SPEC. DS only provides TYP value. Could you kindly advise MIN and MAX value for Fsw? TPS564247: Thanks and best regards, Terry
    • Resolved
    • Answered

  • TPS564247: CIN parts selection

    Resolved
    Part Number: TPS564247 This is not only for TPS564247 but for 12V VIN cases. I used WEBENCH and got the report. -- Input -- VIN 12V VOUT 1V IOUT 3A -- Report -- TPS564247DRLR CIN GRM21BR61E106MA73L x2 Frequency 1.244 MHz Vin p-p 33.993 mV CIN capacitor…
    • Resolved

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