Hello I have the following schematic:
The Bosch BMF055 MEM actually contains an ATMEL SAMD20J18A cpu embeded in it.
The circuit is powered by a LiIon battery. Lately I am suffering from brownout issues when the circuit is shaken. Probably I guess that the poles of the battery might not be making perfect contact with the battery holder contacts of the circuit (I don't know).
Is it possible that if I add extra 'larger' caps (eg. 100 uF) before and after the voltage regulator, I might be able to solve that brownout dips (I guess they are really instantaneous)?
I have found the following link https://www.microchip.com/webdoc/samd20xplainedpro/ch05s02.html that says:
VDDCORE decoupling capacitor
The VDDCCORE output pin on SAMD20J18A has two decoupling capacitors, one 100nF and one 4.7μF. This might lead to a high power consumption when leaving STANDBY sleep mode and the regulator returns to normal operating mode.
Change the 4.7μF tantalum capacitor (C315) to 1μF ceramic capacitor.
Isn't that opposed to the brownout (meaning smaller caps have larger possibility of a brownout)?