I am using the TPS60120 booster for a battery powered project (2x AA batteries).
The cable to the batteries is approx 30cm long.
Should I protect the Vin from EMI pickup in the cable with an RC filter?
And what would you recommend the values be.
See this schematic:
C3 is the input capacitor for the TPS, R10 and C9 are the RC filter.
I placed the RC filter AFTER this capacitor, or should I place it BEFORE?
- What would you recommend the cutoff frequency to be for filtering emi from wire pickup?
- Which RC values would you recommend? The power draw at around 3V wil be on average 20mA with short tops of 180mA.
- I am confused if I should keep R10 low for less power draw by the RC filter or C9 low...?
- Is it neccecary at all to use an RC filter here?
thanks for answering my questions!