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  • LM3480: LM3480 output voltage abnormal

    Part Number: LM3480 Tool/software: Hello， The customer is using LM3480IM3X-12/NOPB. Input voltage 30V, output voltage 12V, output current 100mA. During mass production, some chips have abnormal output voltage, about 1V. Please help analyze the cause…

  • LM3480: LM3480 turns off output unexcpectedly at startup

    Part Number: LM3480 Hello. When I apply voltage to the LM3480IM3-15, the output from the regulator is turned on and off a couple of times before it stays at the wanted 15V. Vin ( and also Vout from regulator) ramps from 0V to 15V for approx. 20ms. Vin…
    • Answered

  • LM3480: LM3480 reverse current latching

    Resolved
    Part Number: LM3480 Hi, I have a LM3480 for supplying an µC from 12V. Because I want to use the 5V supply from the progger without any 12V supply I have an inverse Schottky diode across the (between in- and output) of the LM3480. Unfortunately the LM3480…
    • Resolved
    • Answered

  • TLV760: Drop in replacement for LM3480?

    Resolved
    Part Number: TLV760 Other Parts Discussed in Thread: TPS7B69 , TPS709 Hi all, I am looking for a replacement for the LM3480IM-15NOPB, where I have found the TLV76015DB. Can you help assist me in determining differences between the two parts? www…
    • Resolved
    • Answered

  • RE: LM3480: LM3480 / Short circuit current

    Resolved
    Hi Harsh, have a look at figure 13 and 14 of datasheet to see what output current the LM3480 drive during a short circuit event. Kai

  • LM3480: Doesn't work up to maximum rated input voltage

    TI Thinks Resolved
    Part Number: LM3480 The LM3480IM3-3.3/NOPB voltage regulator will not work in our test circuit with Vin above 16V. When Vin > 16V the output voltage begins to decrease to ~ 2.6V and current is limited to < 30mA. Ambient temperature was around…

  • LM3480: MCP1702

    TI Thinks Resolved
    Part Number: LM3480 Other Parts Discussed in Thread: UA78L , TPS7A25 , LM317L I'm looking for a regulator which can compete with MCP1702. The LM3480 can only support 100mA and not SOT89 package.Is there any similar product to compete? application: Motor…

  • RE: LM3480: Problem with the LM3480 at 70°C

    Hi Ryan, Thank you very much for your answer. From the behavior of the LM3480 output that we can see on my video, this is what I was expecting: the LM3480 is actively limiting its junction temperature. However I still have two problems: - The first…
    • Answered

  • BQ25703AEVM-732: Power input to 3.3v LM3480

    Resolved
    Part Number: BQ25703AEVM-732 Other Parts Discussed in Thread: LM3480 , BQ25703 Hello, I hope you are well, I am working on a custom PCB based on the BQ25703A-EVM, and I am a little confused about the power input to the 3.3v LM3480 LDO. According to the…
    • Resolved

  • RE: LM3480 Failing at 24 VDC input

    Hi David, Attached is a screen-shot of the circuit I mentioned in my last post regarding the LM3480 failures. Note that I installed a 100V/1A schottky diode across Vin and Vout in case RC was the issue. Even though there could be a condition of reverse…

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