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  • RE: TPS7A47-Q1: Time from EN to start of VOUT rising

    Resolved
    Hi Yoshikazu, Please see attached zip file with En-to-Vout timings over temperature scope shots. Each filename describes the test condition. This is using the TPS7A47xxEVM-094 Evaluation Module. ( http://www.ti.com/lit/ug/slvu741a/slvu741a.pdf In…

  • TPS7A47: PSRR at higher frequency

    Part Number: TPS7A47 I want to see how PSRR looks like up to 1GHz. Is that possible to see?
    • Answered

  • TPS7A47: Does the Enable Pin on the TPS7A4701 have Schmitt Trigger functionality?

    Resolved
    Part Number: TPS7A47 Other Parts Discussed in Thread: TPS3701 I am posting this message on behalf of a customer. They are using the TPS7A4701 and are curious if the enable pin for the part includes a Schmidt trigger circuit. They are wondering if there…
    • Resolved

  • TPS7A47-Q1: EMI performance of the device

    TI Thinks Resolved
    Part Number: TPS7A47-Q1 Hi All, I am planning to use this part as a programmable LDO between 1.7-5.5V. (The current that I might draw is approximately 50mA in these operating voltage range) The problem is that the environment in which i am using the…

  • TPS7A47: reliability at high voltage operation

    Part Number: TPS7A47 Dear Sir Is there a problem with the TPS7A4700 operating at high voltages? We have used approximately 3681 of these devices across 26 boards mostly with no problems when it is used to produce less than about 8Volts output. When…
    • Answered

  • TPS7A47: Differences between TPS7A4700 and TPS7A4701

    Resolved
    Part Number: TPS7A47 Other Parts Discussed in Thread: TPS7A8300 , TPS7A83A , TPS783 Hello, I'm struggling to understand the differences between TPS7A4700 and TPS7A4701. This is a followup to a e2e post last year: https://e2e.ti.com/support/power_management…
    • Resolved
    • Answered

  • RE: TPS7A47: Cff nedded like the TPS7A33

    Resolved
    Hi Andrea, You are correct that the startup equation changes based on if you are using ANYOUT or an external resistor divider due to the architecture of TPS7A47. The equation for the startup time is found here: Very Respectfully, Ryan

  • RE: TPS7A47: LDO not working as intended.

    Hi , It is somewhat difficult to tell from your picture which of the ANYOUT pins you have tied to GND; however, it looks to me that you tied 3P2V to GND as well as 0P8V. Unfortunately this will yield a nominal output of 5.4 V when the LDO has a high…

  • TPS7A47: Noise output voltage

    Part Number: TPS7A47 para 8.2.1 mention 50 uV p.p while figure 1 on para 6.6 shows a graph with approx. 4.5uV rms at 3.3V output. Which is correct? Also How can I reduce the noise further? DO you have other devices? Ot can I use two in series to…
    • Answered

  • TPS7A47: Lowest temperature to start

    Resolved
    Part Number: TPS7A47 Hello, we develop low noise amplifier for RF transmitter. Our device planned to place on the top of radio tower. There are can be very cold due to high speed wind. We except that lowest temperature can reach -50 C. We don't work at…
    • Resolved

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