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  • TPS65140: Adjusting the Vo4 to 3V6

    Part Number: TPS65140 Other Parts Discussed in Thread: TPS65100 Hello, Team I am working to replace MAX1531ET by TPS65140PWPR in a Infotaiment system. This will drive a 7” TFT bipolar display , that requires the following voltages: +16V, …
    • Answered

  • TPS65140 linear regulator

    Resolved
    Hi Sir, Sorry to bother you. As we can see from datasheet, if my customer don’t need to use linear regulator control (FB4 and BASE), it should be connected with VIN, am I correct? If my customer Vin is 5V, can I connect FB4 and BASE to this 5Vin…
    • Resolved
    • Answered

  • TPS65140: VO1 outputs VIN, when EN is diabled

    Resolved
    Part Number: TPS65140 HI team member When EN is disabled, VOI1 of TPS65140 ouputs nearly VIN by boost DC/DC configuration (VIN -> Inductance -> diode -> VO1). This means LCD panel 's AVDD is applied VIN(5V) vorlage during EN is diabled, *Have…
    • Resolved
    • Answered

  • RE: TPS65140 VO1 voltage drop during -40 degree

    Resolved
    Hi Brigitte, We found the root of this issue. Noise from FB can be improved by decreased FB resistor. After modify FB resistor, this issue can be solved. Regards, Ben
    • Answered

  • TPS65140 - Max Current on VO1

    Resolved
    Other Parts Discussed in Thread: TPS65140 Hello TI, I was looking back at the specs of the TPS65140 to check the max current on VO1. There are discrepancies in the datasheet. On page 1, it says “Up to 15V / 400mA”. On page 2 in the typical application…
    • Resolved
    • Answered

  • TPS65140 VO3 output voltage minimum?

    Resolved
    Hello TI, See my schematic below. I have a VIN of 5V and I am trying to get VO3 of 15V. I have the R5/R6 combination of 432k/38.3k respectively. Per this change I only get 17V on the output. Are there any other techniques I should use? I am currently…
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    • Answered

  • Vref of TPS65140/TPS65141/TPS65145 datasheet (Typo)

    Resolved
    Other Parts Discussed in Thread: TPS65145 , TPS65141 , TPS65140 For TPS65140/TPS65141/TPS65145 datasheet P4, Vref_Typ is written in 1.13V. Is this typo? And, correct Vref_Typ is 1.213V, OK? Best regards, Satoshi
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    • Answered

  • TPS65140-Q1 Vo3 drop

    Resolved
    Other Parts Discussed in Thread: TPS65140 0083.TPS65140-Q1 Vo3 drop .ppt When I had 2mA from no load, the output of Vo3 falls approximately 0.5V. Why is it? Please watch an attached file.
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    • Answered

  • RE: TPS65140: Using only Boost Converter Setup

    Resolved
    Hello Nathaniel, Normally the part should operate as expected, as long as you terminate the FB pins correctly. But I never tested this because when a single boost converter is necessary I recommend TPS61085/6/7 instead of the TPS65140. I recommend…
    • Answered

  • TPS65140-Q1 phase margin

    Resolved
    Will it be necessary to confirm phase margin of Vo2, Vo3 and Vo4? In the case of Yes. Please tell me how I should measure phase margin of Vo2, Vo3 and Vo4. When I cannot measure it, please tell me the reason.
    • Resolved

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