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LDO bypass capacitors
Nikos A.:
Hi everyone,
I want to use the TPS79733QDCKRQ1 LDO in one of my projects. According to the datasheet two decoupling capacitors are required in both input and output.
The datasheet indicates electrolytic capacitors. Can I use ceramic instead?
Thanks in advance!!
wraper:
It says any capacitor, so MLCC supposedly is OK.
wraper:
But I would suggest something more modern and cheaper. For example TPS7A0533PDBVR is explicitly said to be fine with MLCC.
wraper:
MCP1811 or MCP1812 is also multiple times cheaper.
rstofer:
That 0.47 ufd provides bulk capacitance to the load. It can be larger and I would move toward 10 ufd electrolytic. Then I would add a parallel 0.1 ufd ceramic to handle high frequency noise. The input capacitor is still 0.1 ufd ceramic.
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