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    Answered

  • Re: TPS40131 Single-Phase Application

    Resolved
    Hi Frank, TPS40131 can be configured into single phase application by connecting CS1 and CS2 together, CSRT1 and CSRT2 together, to the same current sense signal and leaving the phase not to use unpopulated. Sorry for my misleading reply before…
    • Answered

  • Re: noise problems on TPS40131

    Resolved
    Hi Saminda, It could be caused by the parasitic inductance on the gate drive path. Are the HDRV and LDRV close to the FETs? Regards, Na
    • Answered

  • Re: TPS40140 Switcher Pro use for TPS40131 component selection

    Resolved
    Hi Ed, As far as I can tell, the current sense amplifier gain is different for the two parts; TPS40131 datasheet suggest use Type III compensator, while TPS40140 suggest Type II. So I am afraid using the components from TPS40140 may have problem. …

  • TPS40131 Over Current Protection

    TI Thinks Resolved
    Other Parts Discussed in Thread: TPS40131 There is an OCP(Over current protection) issue on the TPS40131. The conditions are I/P:8.3V~14V, O/P:0.7V~5V(Adjustable) and Iout:30A for industrial power application . The output voltage can be adjustable…
    • Answered

  • Re: TPS40131 --Current Mode Control with Forced Current Sharing

    Resolved
    Hi Guillermo, The TPS40131 is a two-phase synchronous buck controller and the load current is forced to share between two phases, not between phases controlled by 2 TPS40131. For your application, you may look at the stackable 2-phase controller TPS40140…
    • Answered

  • TPS40131 12Vin to 5Vout datasheet design example

    Resolved
    Other Parts Discussed in Thread: TPS40131 Do we have a BOM for TPS40131 design example from 12V to 5V output (pg 29 datasheet)? It shows efficiency curve on pg 30. Do we have a reference design on that? Thanks, Kay Ohn
    • Resolved
    • Answered

  • RE: Design software support TPS4013

    Resolved
    Na, I too am working on a TPS40131 design, and would find the MathCad worksheet useful. Can you please send it to me or provide an online link? John Muren
    • Answered

  • RE: Recommendations for 4.5V-36V to 3.8V, 6A power controller

    Resolved
    Here are the controllers that meet your criteria: LM25141 - Low Iq, Wide Input Range Synchronous Buck Controller 3.8 42 1.5 15 20 1 1 350 2600 0.035 Adjustable Current Limit, Enable, Frequency Synchronization, Light Load…
    • Answered

  • TPS40090 / TPS40091: What is the relationship between the SYNC frequency and the PWM switching frequency?

    Resolved
    Other Parts Discussed in Thread: TPS40090 , TPS40180 , TPS40140 , TPS40132 , TPS40131 , TPS40130 What is the relationship between the frequency applied to the EN/SYNC pin and the frequency generated at the PWM outputs?
    • Resolved

  • Re: Parallel operation of TPS40054

    Hi Matthias, For higher current, I would suggest a 2-phase converter instead of paralleling two converters. In that way, the two phases can operate with a clock of 180 degree phase difference so that the input/output ripple current can be reduced,…

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