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TPS6301x
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  • Wiki Page: TPS63xxx - minimum duty cycle in buck mode

    Chris Glaser
    All of the TPS63k devices have a minimum duty cycle in buck mode. This is a result of needing enough time to sample the current for the average current mode control. The minimum duty cycle is 30% typical and 40% maximum, as noted in the TPS63020 datasheet. This shouldn't be an issue in most...
    on Mar 4, 2011

  • Forum Post: Re: tps63020 Vout deviation in power save mode

    Daniel Acevedo
    The TPS6302x is expected to have a higher output voltage in power save (PFM) mode. This prevents the output voltage from dipping below the set output when a load is applied. In PFM mode, the feedback is between two points near .500V and .525V which is why the average output is measured at .512...
    on Apr 28, 2011

  • Wiki Page: TPS63020 Vout deviation in power save mode

    Daniel Acevedo
    Q: TPS63020 Vout deviation in power save mode by 1433869 Hi: Sorry need you guys help. 1. Could you provide Vout’s deviation in power save mode? 2. Do you have formula about estimating Vout range in power save mode? 3. Why Vout in save mode is a little higher than PWM mode's...
    on May 5, 2011

  • Forum Post: Re: TPS63020

    Daniel Acevedo
    Generally, we recommend you follow the design procedure in the datasheet and your schematic and layout match that of the EVM. See my comments below: Shlomi Yehezkia Q1: Can the PS/SYNC pin (power safe mode) be active for good? [D.A.] PS/SYNC is an input to enable power save mode or for a system...
    on Jun 22, 2011

  • Wiki Page: TPS63020 Additional Input/Output Capacitors

    Daniel Acevedo
    Q: TPS63020 by 1013270 , From page 12 from the PDF file (TPS63020EVM User's Guide) it seems that there are six capacitors, from the layout point of view (page17) there are additional two more capacitors. A: Re: TPS63020 by 1129650 , The additional capacitors in the schematic and pads on...
    on Jul 18, 2011

  • Wiki Page: TPS63020 and BQ24020 Ground and Power Ground (GND & PGND)

    Daniel Acevedo
    Q: TPS63020 by 1013270 , Please find the following question regarding the GND and power ground of the TP63020 and bq24020. The charger bq24020 powers up (VIN) the SPS TP63020. Can the charger ground be the same plan as the SPS GND pin 2. In all hoe should the ground separation between the two IC...
    on Jul 18, 2011

  • Forum Post: Re: TPS63020 PS/SYNC pin PWM pulse frequency limitation

    Daniel Acevedo
    For the TPS63020 to SYNC, the frequency would have to be in the MHz range. Even if this happens due to a bounce, the converter will return to the free-running frequency if a SYNC signal is not received within several switch cycles.
    on Jul 20, 2011

  • Wiki Page: TPS63010 Efficiency Graph

    Daniel Acevedo
    Q: Requests the Efficiency Graph of TPS63010 by 1684384 Customer requested the efficiency graph of TPS63010 that X-axis is current, Y-axis is efficiency when VIN=4.0V and VOUT=3.3V. There is similar graph in the datasheet, but not same condition ( VIN=4.0V and VOUT=3.3V). Could you send me...
    on Jul 21, 2011

  • Wiki Page: TPS63010 vs. TPS63020 power dissipation

    Daniel Acevedo
    Q: TPS63010 vs. TPS63020 power dissipation by 1579618 Team, The TPS63010 is being used to regulate a 4.5V - 5V rail to 5V @ 1A max. The PCB is 6-layers with 2 GND planes about 3.8" x 1.5" size. The concern is with the TPS63010's ability to dissipate power which is spec'd for approximately...
    on Jul 21, 2011

  • Wiki Page: TPS63020: VINA not connected to VIN, any issues?

    Daniel Acevedo
    Q: TPS63020: VINA not connected to VIN, any issues? by 16027 We have a board that has a TPS63020. Its VINA and PSSYNC pins were tied together, but not tied to VIN. The data sheet recommends: " To make sure that the internal control circuits are supplied with a stable low noise supply voltage...
    on Oct 28, 2011

  • Wiki Page: TPS63020 VINA Pin Connection

    Daniel Acevedo
    Q: TPS63020 by 1013270 Should the VINA pin be also connected to VIN or is it internal connected? A: Re: TPS63020 by 1129650 VINA should be connected to a 0.1uF ceramic capacitor. VINA has an internal connection to VIN and does not need to be externally connected to VIN if the 0.1uF capacitor...
    on May 11, 2012

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