Hello,
I'm using TPS54239E in a new design.
For a 5V output voltage, the maximum output capacitor total value is 68µF (table 1 of datasheet).
- Does this maximal value includes DC bais effect of the capacitor?
- Does this value inclued input capacitor of the load where TPS54239 dc/dc converter is connected?
In my schematic, output of TPS54239E is connected on 3 secondarys DC/DC converters.
One of this secondarys converter are a 1.6 inch away from the TPS54239E converter.
The two others secondarys converters are a 0.3 inch away from the TPS54239E converter.
I need to know if input capacitors of secondarys dc/dc converters should be inclued (or not) in the total output capacitor of TPS54239E.