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tps63010
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  • Forum Post: TPS63010 / TPS63011 Output Voltage vs. Input Voltage Variation

    Charles McCarthy
    1) When the device switches between buck-mode to boost-mode (and vice verse) is the output glitch free? 1a) If the device has glitches, how large are the glitches? 2) If the input voltage drops below the Vin minimum (2v) what happens on the Vout pin? 2a) Does the device shut off the internal MOSFETs...
    on Nov 10, 2009

  • Forum Post: DR for TPS63010 schematics

    Ariel Stern
    Hello There, My application is powered by one 3.7 non rechargeable lithium cell and I am planing to use the TPS63010 in order to maintain the 3.5-3.6 V through out the battery life cycle. my cut off voltage is 3.3V. The average current consumption is 50mA with transmission peaks of 2 A. ...
    on Jul 7, 2010

  • Forum Post: Re: DR for TPS63010 schematics

    Chris Glaser
    As shown on page 16 of the datasheet, VINA and VINA1 need to be connected together, with a decoupling capacitor. VINA1 is the output of the 100 Ohm resistor which provides a low pass filter to the VINA input. VINA is the power for the control circuitry. Be sure and use quality capacitors with an X5R...
    on Jul 7, 2010

  • 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

  • Forum Post: Re: TPS63010 - Is the part capable of output current 2A

    Thomas Hoffmann
    Hi Poh Leong, what you are asking is related to physics. When you operate from a voltage below you desired output voltage, than the converter operates in boost mode. Basically the current drive capability is related to the switch current inside the chip. In a simplified way think of it like POUT can...
    on Feb 11, 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

  • Forum Post: Re: wiring drawing of daisy chain sample for TPS63010YFF

    Chris Glaser
    I do not understand what a wiring drawing or daisy chain sample is. Could you explain again? The datasheet contains the pinout of the IC. This is all that should be needed by a customer.
    on Mar 22, 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

  • Forum Post: Re: PWM Dimming an LED with the TPS63020

    Daniel Acevedo
    Terry, What are your specifications? e.g. what is your input voltage range, how much current do you need for the LED, what is the forward voltage drop of the LED, what is your primary design goal (efficiency, cost, simplicity). One note is that the TPS63020, TPS63010, and TPS63030 have built in...
    on Sep 6, 2011

  • Forum Post: Re: PWM Dimming an LED with the TPS63020

    Terry Cooke
    Any feedback??
    on Sep 13, 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

  • Forum Post: Re: TPS63020 Layout

    Daniel Acevedo
    The assembly drawing in the User's Guide shows the pad under the IC; a solid rectangle. The stencil is later made by the contract manufacture to meet their process requirements which ensure that the pad is soldered to the board and doesn't short other pins. This waffle method is preferred to...
    on Dec 8, 2011

  • Forum Post: Re: 3 Nimh powering 3.3V and 5V rail

    Chris Glaser
    Our TPS630xx series is perfect for your application. These converters buck or boost to keep the output regulated. There are different package options and output currents in the family. TPS63000, TPS63010, TPS63020, TPS63030, and TPS63060.
    on Jan 21, 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

  • 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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