value for in/output capacitor of LTC3564

Hello,

there is no simple yes or no to your question if 10uF are possible. At least you have to find out. LTSpice simulations might help as well, but not all effects of ceramic capacitors (biasing,...) are considered in the standard model. This valuable article shines some light on this issue

https://www.analog.com/en/analog-dialogue/raqs/raq-issue-192.html

Back to your question: smaller Cout will increase ripple voltage, something which you want to avoid for a noise sensitive circuit, correct?

Smaller Cin might lead to more input ripple with negative impact on EMI as well.

Smaller Cout influence the control loop, hence other values of Cff (parallel to top FB resistor) might be needed for optimum stability

So to say you have to find out with your real hardware and test the circuit behaviour under all extreme/worst case conditions to check if smaller capacitance values degrade the desired performance too much or not.

kr

Markus

Thank you very much Markus! It really helps!