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  • LM2840-Q1: Webench frequency response

    Part Number: LM2840-Q1 The frequency response of my Webench design for this switching regulator is not great. With 5.7-15V input voltage range, output voltage of 3.3V and max load 0.04A. The original design chosen by Webench gave phase margin of 45.37 deg…
    • Answered

  • RE: LM2840: TI Webench Power Designer Simulations Fail

    Resolved
    Thanks, Umayal.
    • Answered

  • LM2840: Can LM2840 be used as an alternative for LM2841?

    Resolved
    Part Number: LM2840 Other Parts Discussed in Thread: LM2841 , , LMR14203 Hello team, My customer is considering use LM2840 as an alternative for LM2841 due to the current situation. In this, we should check two points. Can you give me your thought? "Switch…
    • Resolved

  • LM2841: Current limit compared to LM2840

    TI Thinks Resolved
    Part Number: LM2841 Other Parts Discussed in Thread: LM2840 , LM2842 Hi, we have implemented an inverting power supply design using the LM2840YMK-ADJ by following the guidelines in your application note SLVA317B. This circuit works fine. Our input voltage…
    • Answered

  • LM2840: LM2840 short circuit protection? Vin = Vout after shorted output to ground

    Resolved
    Part Number: LM2840 Hello, we use the lm2840 in our design. i try the short circuit protection. i connect the output from the lm2840 (after the inductor) to ground for just a second. the device is after that damaged and the vout voltage = vin voltage…
    • Resolved

  • LM2840: Part Recommendation

    Part Number: LM2840 Hi team, I’m thinking of using it with 24V input, 15V output, and 60mA draw. The theta JC value of 94 is very high. Our thermal analysis based on 0.9W, shows it over the max 150C junction temp by significant margin. Is there…

  • WEBENCH® Tools/LM2840: LM2840 inductor value

    TI Thinks Resolved
    Part Number: LM2840 Other Parts Discussed in Thread: LM2841 , LM2842 Tool/software: WEBENCH® Design Tools Hallo. I am creating power circuit with your part LM2840 with following parameters: Vin: 6 to 30 V Vout: 3,3 V Iout: 100 mA fsw: 550 kHz (X part) I am…
    • Answered

  • LM2841-Q1: Difference LM2840/41/42-Q1

    Resolved
    Part Number: LM2841-Q1 Other Parts Discussed in Thread: LM2841 , LM2840 , LM2842 , TPS57060-Q1 , LP2951 , LM3489 Both have the same Rds,on and current limit, but the LM2840(-Q1) has better efficiency at 100mA, and the curve is still rising. Why is it only recommended…
    • Resolved

  • LM2840: Question on LM2840 generating -3.3V

    Part Number: LM2840 I am using LM2840 to generate -3.3V. The schematics is same as the example circuit in data sheet for generating 3.3V My question is: In the Electronic characteristics table, the Quiescent current (NO LOAD) is 1.35mA typical. In my circuit…

  • LM2840: Inverting Buck-Boost Converter: -12vdc possible?

    Part Number: LM2840 Other Parts Discussed in Thread: LM2841 , , LM2736 , TPS5430 Hi, I need a -12vdc output at about 50mA to drive some op-amps. I have a choice of Vin to be either unregulated 16vdc, 3.3vdc (from an LM2736 output) or 12vdc (from an LDO)…

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