Power Management
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Power Management

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TPS63021
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  • Wiki Page: TPS63020 Pgood sink current capability question?

    Michael Day
    Q: TPS63020 Pgood sink current capability question? by 1023006 Hello, Could you let me know Pgood sink current capability of TPS63020? I saw datasheet and switch pro, they use 1M ohm for Pgood pull higih resistor to 3.3V output terminal. Is mean the Pgood sink current capability is very low? ...
    on Aug 20, 2010

  • 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 Line and Load Regulation Spec

    Daniel Acevedo
    Q: TPS63020 Line and Load Regulation Spec by 1129650 Referring to the Electrical Characteristics table in the datasheet, how can the line and load regulation be 0.5% if the output voltage regulation is 5%? A: Re: TPS63020 Line and Load Regulation Spec by 1129650 First note that the regulation...
    on Apr 18, 2012

  • 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

  • Forum Post: RE: TPS63020 5W Halogen lamp application

    Daniel Acevedo
    What is the cold resistance of the bulb? Please review the bulb datasheet. Also, please provide analog scope shots showing VIN, L1, L2, VOUT and IOUT of the TPS63020. It is possible that the bulb looks like a very low resistance load to the converter and the 400mA softstart current is not enough to...
    on May 14, 2012

  • 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

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