Part Number: TPS62933EVM Other Parts Discussed in Thread: TPS62933 Tool/software: Hi Teams,
I am designing with TPS62933 and have some questions about the caps placement at the input and output.
According to the description in datasheet layout guidelines…
Part Number: TPS62933EVM Hi team,
My customer is trying to operate this EVM at 2MHz. They have made the following changes- R7 = 10k, JP1 installed, R4= 31.6k.
The EVM is still operating at 500kHz. What else do they need to do to have it operate at 2MHz…
Hi Yuki
Sorry for late reply. I tested on TPS62933EVM and attach the waveforms.
When Io=2A, The device shut down when EN< UVLO threshold and Vout drop.
When Io=0A, Vo will not drop because there is no external Ioad and Cout can keep the Vout stable…
Part Number: TPS62933F Other Parts Discussed in Thread: TPS62933EVM Tool/software: Hi,
I cannot find in the Datasheet the nominal values for rise and fall time of the switching node
thanks
Hi Abhilash
Short& Wide trace is preferred. You can refer to the layout of the TPS62933EVM: There are also some Layout guidelines in the section 12.1 of the datasheet.
Thanks and best regards.
Hello,
We developed our schematic based on the Typical Application Schematic of the "TPS62933DRLR" IC (refer to attached Image 1 - TPS62933DRLR IC ) and the schematic from the "TPS62933EVM-129 3-A Regulator Evaluation Module" (refer to …
Hi Pascal
I think you can use higher sample rate.(currently it's 500kSa/S). I attach a typical SW&Vo waveform when start up and steady state on TPS62933EVM.(The sample rate is 5GS/s)
The failure is bounded with the board other than the silicon…
Hi Gui He,
I found the problem: there's a low impedence path between the +5V rail and the +3.3V output of TPS62933EVM.
Attached you can see the part of schematic where this happens: D1 connected on R pin of THVD1406DR transceiver creates the path between…
Hi Gao,
1. Today I did bench test on TPS62933EVM using your component values: Rfb: 10K/178K (15Vout); L: 6.8uH; RT floating (500kHz); Cout: 2x100uF electrolytic capacitor + 8x22uF MLCC (effective capacitance 4uF per cap with 15V DC bias).
I could reproduce…
