Part Number: TPS54620DESIGN-CALC Other Parts Discussed in Thread: TPS54620
Tool/software: WEBENCH® Design Tools
Iverting power supply design not available in Webench design tools. I'm using TPS54620 to generate -5V from +5V. Schematics is shown below…
Hi
The TPS54521 has Calculation tools on website:
https://www.ti.com/tool/TPS54620DESIGN-CALC
The inductor value is OK. the input cap is OK, but rating should be 0805 25V or higher
To calculate the proper value of COMP and C2211:
1. Pls use…
Hi Chuck,
I'm seeing what the issue is. I believe Webench schematic is setup in a way where every time you make a change to a component, it checks the whole design and parameters. I'm guessing that if the change in component has an issue with the old…
Generally you should make separate posts for each part number as threads are assigned based on part number.
TPS54618 has a design tool here:
For TPS53319 we have the on line Webench design tool. Actually you are probably better off to use Webench…
Thank you for sending the waveforms.
The 19kHz signal that they measured indicates instability. This is probably causing the PG signal to trip. Have they measured the stability of this design or measured a bode plot?
Can you also confirm that R33…
