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  • LM3691: Ramp-down issue clarification

    Resolved
    Part Number: LM3691 Hi, My customer has ensured that this requirement is met during power-up: Datasheet page 16: " 8.4.2 Shutdown Mode .... EN pin must be set low to turn off the LM3691 during system power up and undervoltage conditions when the supply…
    • Resolved

  • LM3691TL-1.8EV: Spurious signals at 60kHz

    Part Number: LM3691TL-1.8EV Hi, We are using both the LM3691TL-1.0 & LM3691-1.8, we noticed spurious signal coming out the these regulators around 60KHz with harmonics, varies with temperature, is there a clock internal to the chip running at this…

  • LM3691: Slow ramping Vin LM3691, seek reproduction of an issue

    TI Thinks Resolved
    Part Number: LM3691 Other Parts Discussed in Thread: TEST Hi, My customer see an issue with slow ramping Vin (20 sec from 0V to 5V). I request your advice and reproduction of this test on a 3V3 part to see if you also can find it. More details can be provided…

  • LM3691: LM3691 Adjustable Output

    Part Number: LM3691 Hello, I need to create a 0.8V output. Can I use feedback resistors on the LM3691TL-0.75 device to generate the desired output voltage? Don
    • Answered

  • RE: TLV9002: known issue?: light sensitive current draw change on VCC with package X2QFN (RUG)

    Resolved
    Hello Simon, This is the first, I have heard on TLV9002. This is common to many semiconductors. I didn't find a dedicated paper, but I did find posts about data sheets that have some information. https://e2e.ti.com/support/power-management-group/power…
    • Answered

  • WEBENCH® Tools/LM3691: Looking for Vout min and Vout max, i.e the historical feature that used to exist in Webench

    Resolved
    Part Number: LM3691 Other Parts Discussed in Thread: TLV431 Tool/software: WEBENCH® Design Tools Hi, My customer wants to study the Vout tolerance but cannot find Vout min/max anymore. How to get this info from the tool? Thanks! /M.A.M
    • Resolved

  • LM3691 - Possible mistake on the datasheet information about the layout example

    Other Parts Discussed in Thread: LM3691 I found this image about the layout of the LM3691. Are the "KEY" description colored in the opposite way? Thanks

  • LM3691 Start Up operation

    Hi We found a unknown operation at start up. (Vin ramp up very slowly.) Yellow: Vin, Blue:Vout, Pink: Iin There is two step operation. It looks that different current limit works at each step. (MODE pin is connected to Vin directly.) Is it in ECO mode…
    • Answered

  • [ LM3691 ] Input Current Anomaly

    Resolved
    Other Parts Discussed in Thread: LM3691 [ LM3691 ] Input Current Anomaly Hi, I'm considering whether I should send LM3691TLX-1.2, customer reported anomaly of input current, to failure analysis process. Does anyone have comment? My customer has reported…
    • Resolved

  • LM3691 light sensitivity

    Other Parts Discussed in Thread: LM3691 , LM3671 I suppose this applies to any chip in the DSBGA package, but I'm wondering how the LM3691 behaves when exposed to light. From the part's datasheet: The DSBGA package is optimized for the smallest…

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