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  • LV14540: LV14540: MOSFET Specification used in the IC

    TI Thinks Resolved
    Part Number: LV14540 I am using LV1450 IC for my application please specify the MOSFET Specification which is used in this buck regulator.

  • LV14540: Recommended protection IC for automotive load dump / reverse polarity protection before LV14540-Q1

    TI Thinks Resolved
    Part Number: LV14540 Other Parts Discussed in Thread: TPS4800-Q1 , LM7480-Q1 , TPS4816-Q1 , LM74930-Q1 , Hi, We are considering an input protection circuit for an automotive battery-powered product. The downstream DC/DC converter is LV14540DDAR, and…
    • Answered

  • LV14540: The function of LV14540 (EN control with VIN always powered)

    Resolved
    Part Number: LV14540 Hi, I would like to confirm the function of the TI DC/DC converter shown in the subject. Currently, we are considering an operation where VIN is always supplied (9 to 36 V), and the DC/DC output is controlled by turning the EN…
    • Resolved

  • LV14540: Input voltage/current noise synchronized with switching operation

    TI Thinks Resolved
    Part Number: LV14540 Hi, I have a question regarding input voltage and input current noise in a power circuit using the LV14540DDAR. We observe switching-synchronized noise superimposed on the input voltage and input current of the DC/DC converter…

  • LV14540: [Part2] Input voltage/current noise synchronized with switching operation

    TI Thinks Resolved
    Part Number: LV14540 Hi, This is a continuation of the related questions. https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1631356/lv14540-input-voltage-current-noise-synchronized-with-switching-operation…

  • TPS54560: Replacement recommendation for LV14540: TPS54560B vs LM76005 and pin-compatible 60V alternatives

    TI Thinks Resolved
    Part Number: TPS54560 Other Parts Discussed in Thread: LV14540 , , LM76005 Hi, I am currently considering a replacement for LV14540 and would like to ask for your advice. As possible replacement candidates, I am considering the following two devices…

  • LV14540: Switching regulator for large initial loads...

    Part Number: LV14540 Other Parts Discussed in Thread: LM2679 I designed a 12V power supply around the LV14540 for a 3.5A load. The problem is that the load has a positive tempco so it is briefly much higher at startup. I can't get this to ever get out…

  • LV14540: EN short to GND after IEC61000-4-2 contact discharge -8kV (ESD rating expectation?)

    TI Thinks Resolved
    Part Number: LV14540 Hi, We are using LV14540DDAR and observed a failure after an IEC ESD test. Please confirm if our understanding is correct and advise countermeasures. ESD test / symptom Standard: IEC 61000-4-2 Method: Contact discharge…

  • LV14540: LV14540DDAR failure after IEC61000-4-2 contact discharge (-8kV to chassis): EN short to GND

    TI Thinks Resolved
    Part Number: LV14540 Hi, We are evaluating a prototype board using LV14540DDAR and observed a failure during a system ESD test. Test condition IEC 61000-4-2 style ESD: ±8 kV contact discharge to the metal chassis/frame of the equipment (thermal…

  • LV14540: Issue with Webench Simulation

    TI Thinks Resolved
    Part Number: LV14540 Other Parts Discussed in Thread: LMR14050 Tool/software: I am trying to simulate a circuit using the LV14540 part number, but unfortunately, it is not available in Webench Power Designer. Could you please help me resolve this issue…

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