Non-Isolated DC/DC

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Non-Isolated DC/DC

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  • Wiki Page: TPS63001 accuracy

    Chris Glaser
    Q: TPS63001 accuracy by 7382 What is the specified accuracy of the TPS63001 and TPS63002? It is not specified in the data sheet- only the adjustable feedback tolerance for the TPS63000. A: Re: TPS63001 accuracy by 244698 The accuracy for TPS63001 and TPS63002 is: Feedback 1% Line 0.5% Load...
    on May 24, 2013

  • Wiki Page: TPS63020 Buck-Boost Operation

    Daniel Acevedo
    Q: Could you please briefly tell me which MOSFETs are on/off and which MOSFETs are switching when in each mode? A: In Buck Mode, Q3 is on always and Q4 is off always and Q1 and Q2 are switching. In Boost mode, Q1 is on always and Q2 is off always and Q3 and Q4 are switching. When VIN is near...
    on May 16, 2012

  • Wiki Page: TPS63000 VINA Connection

    Daniel Acevedo
    Q: In customers lab, they have had success (no degradation in performance ) when they eliminate R3 (100Ohms) and short Vin to VinA . They would like to know if there is any reason why they cannot do this in production: - What performance issues does TI think might be compromised? - Is there any...
    on May 11, 2012

  • Wiki Page: TPS61070 - Can the TPS61070 maintain output voltage regulation when the input voltage is higher than the output voltage?

    Chris Glaser
    Q: TPS61070 - Can the TPS61070 maintain output voltage regulation when the input voltage is higher than the output voltage? by 1166427 Question/Problem: Can the TPS61070 maintain output voltage regulation when the input voltage is higher than the output voltage? Answer: No, the TPS61070 can...
    on Feb 3, 2012

  • Wiki Page: TPS63000 COUT ESR value

    Michael Day
    Q: TPS63000 COUT ESR value by 1158565 Our customer plans to use TPS63000 for 5V output, and they inquire TPS63000 output cap. At this time, they will use 4.7uH inductor, so COUT need at least more than 23.5uF. Datasheet recommends ceramic cap, but they can't use it because their application...
    on Aug 2, 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: 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: 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

  • Wiki Page: TPS63020 and BQ24020 Ground and Power Ground (GND and 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

  • 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: TPS63000 EN, SYNC > Vin?

    Chris Glaser
    Q: TPS63000 query on driving the sync pin and enable from 3.3V by 497362 The input to the TPS63000 could be as low as 2.5V, but we would like to control it using 3.3V signals. I'm wary of this, in case there are clamping diodes that will be turned on by these 3.3V inputs when the Li-ion...
    on Jun 22, 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

  • Wiki Page: TPS63000 ESD rating

    Jack Bourke
    Q: TPS63000 ESD rating by 1045076 Could somebody provide ESD rating values (human body model and contact discharge) for the TPS63000? Best regards Martin A: Re: TPS63000 ESD rating by 10449 The TPS63000 meets standard 4kV human body model (HBM), 1.5kV charge device model (CDM), and...
    on Mar 22, 2011

  • 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

  • Wiki Page: TPS63000 Buck/Boost Transition

    Michael Day
    Q: TPS63000 Buck/Boost Transition by 1294176 Team, Can you please comment on the buck to boost transition point in terms of input voltage vs. output voltage for the TPS63000? In particular, does this behavior depend upon the load current? A: Re: TPS63000 Buck/Boost Transition by 10449 ...
    on Sep 9, 2010

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