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  • RE: TPS40210: -15V to -50V/0.2A solution

    Hello Haiwen, Thanks for using the e2e forum. It is possible to use a boost controller like TPS40210 or LM5156 for this. A reference design is given here: https://www.ti.com/tool/PMP9624 There are already some questions on this design within the e2e…

  • RE: LM2991: Inquiry about DC/DC converter recommendation that supports negative voltage

    Hi JH Shin, please have a look at this reference design. This will be a good starting point for your design: PMP9624 reference design | TI.com Best regards, Stefan
    • Answered

  • TPS61170: negative to negative converter

    Resolved
    Part Number: TPS61170 Other Parts Discussed in Thread: PMP9624 , Hi We are considering -17V output from -24V input. Input : -24V Output :-17V/100mA PMP9624 seems to be good reference for our design. I think minor change should be worked…
    • Resolved

  • RE: requesting for technical support on part surch

    Hi Punith, in case you have not already entered another ticket: you can use e.g. the TPS40210 or LM5155/LM5156 with the approach as shown in this reference design: PMP9624 reference design | TI.com Best regards, Stefan
    • Answered

  • TPS40210: FB voltage at Negative output

    Resolved
    Part Number: TPS40210 Other Parts Discussed in Thread: PMP9624 Hi Our customer are going to consider the configuration of the negative output from the negative input.　（Vin=-15V,Vo=-6.8V, Io=1.5A) So, we found some reference design at TI site. At the…
    • Resolved

  • RE: Negative supply generation

    Dear Sir, Please refer to SLVA985 and PMP9624 for a referecne. For the SLVA985, you just need to change TPS61088-Q to TPS61175 or TPS61178.

  • RE: TPS55340: How to generate input voltage-15V to output voltage-6.8V

    Hi Ottey, The 3A output current is too high for TPS55340 as a inverted SEPIC regulator because the current limit of TPS55340 is 5A. Here is another option: http://www.ti.com/tool/PMP9624 By configuring TPS55340 as a negative input buck regulator…

  • Frequency-synchronized positive and negative step-down DC/DC converters

    TI Thinks Resolved
    Other Parts Discussed in Thread: LM5575 , LM61440 , LMR16010 , LMR16020 Hi, Our project needs to convert +18V -> +10V and -18V -> -5V, each 100mA current max, switching frequency > 400kHz, both branches synchronized to avoid interferences. Spread spectrum…
    • Answered

  • RE: WEBENCH® Tools/LMZ14201H: Can we use LMZ14201H as a negative in negative out buck converter?

    Resolved
    PMP9624 uses discrete components, which is hard for a beginner like me. It would be of great value if TI had any plans in releasing a SIMPLE or SWIFT power switches which accept negative input and produce bucked/boost negative output. Thanks!
    • Answered

  • RE: TPS7A33: We need a negative buck converter for -24V to -16V as a pre-regulator for negative LDOs.

    Resolved
    Byliu, We have PMP9624 which uses TPS40210 to converter -18VIN (up to -50VIN) down to -3.3VOUT. This is a good starting point for your design. We do not have much content on negative input to negative output regulators but this PMP should be a good…

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