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  • TINA/Spice/TPS40040: TPS40040 Average Model Issue relevant to CCM & DCM Operation

    Resolved
    Part Number: TPS40040 Other Parts Discussed in Thread: TINA-TI , , TPS40041 Tool/software: TINA-TI or Spice Models Hello All, I have downloaded TPS40040_AVG model from TI website & ran the encrypted model in OrCad PSpice 16.6. My question is that, does…
    • Resolved

  • TPS40040: TPS40040 inquire output spec 40A/2.8v

    TI Thinks Resolved
    Part Number: TPS40040 Other Parts Discussed in Thread: LM2748 , LM2745 Dear, our client want to design a buck controller as the spec below: Vin:3.8V Vout:2.8V Iout:40A 1. Why the current limit is 15A in TI.com 2. Is TPS40040 can change MOSFET and inductor…

  • TPS40040: unable to change part value??

    Other Parts Discussed in Thread: SWITCHERPRO , TPS40040 I'm using the TPS40040 in a design. SwitcherPro do not able me to change the resistor RefDes R5 in my simulation (resistor that fix the output voltage), even if the RefDes text is in red!! It's poping…

  • RE: TPS40077: Schematic review

    Denny Huang The schematic looks better now. Looking at the compensation spreadsheet, I had to change the part number to TPS40077, and after doing do, I noticed that the phase margin at the L-C resonance is very low. Looking into why, I can see a couple…
    • Answered

  • RE: TPS40305: Issue with transient current

    Resolved
    Amir Eshraghi I took a look at the compensation. It is certainly conservative for a 1.2MHz switcher, but I don't see any issue. I have attached the Excel spreadsheet with the loop analysis. TPS40KType III Loop Stability kVenable_TPS40305.xls So,…
    • Answered

  • TPS56121: Customer Schematic Review - L value and loop compensation value

    Resolved
    Other Parts Discussed in Thread: TPS56121 art Number: TPS56121 Hi team, Could you help me to find an appropriate value for inductor and loop compensation RC? I'm trying to design TPS56121 in the operating condition of 10.8Vin, 5.5Vout, 2.8Aout. The load…
    • Resolved
    • Answered

  • TPS40170: TPS40K compensation calculator tool

    Resolved
    Part Number: TPS40170 The tool does not yield the correct compensation values. I attempted to verify if I was doing something wrong by using the values from the TPS40170 reference design, but the values calculated by the Tool don't match the results on…
    • Resolved

  • RE: TPS40170-Q1: Design verification

    Hi Etta, The input capacitor value looks reasonable. As for output capacitor and inductor, you can double check with this calculator tool 1033.TPS40KType III Loop Stability kVenable_sluc263c-071312.xls As for layout i see a good placement for FETs and…

  • RE: TPS40077: Output is not 3.3V

    Chris Jensen Have you been able to make the changes Yuchang Zhang suggested? Have they addresses your issue? The TPS40077 controller uses the KFF pin to provide UVLO, Voltage Feed Forward and a maximum duty cycles. The low resistance on the KFF pin …
    • Answered

  • TPS544C25: Compensation calculation tool

    Resolved
    Part Number: TPS544C25 Hi team, I searched E2E and found there is a post related to my question as below. https://e2e.ti.com/support/power-management/f/196/t/433191?tisearch=e2e-sitesearch&keymatch=tps544c25%2525252525252520calculation But I didn…
    • Resolved

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