tiwari.sachin
Full Member level 6
I am using a Buck converter (9V to 5V)
and from 5V I am using 1117 3.3V LDO.
The output seems fine and everything works but the MCU connected to 3V3 sometimes goes bad.
I checked on multimeter and the voltages are proper.
I am using 47uF at input of 1117 and 10uF and output.
I donot see a very constant output when i check the LDO output on CRO.
How can I make the output more constant. Should I be using a inductor in series at output of LDO, if so what value. How do I calculate this?
and from 5V I am using 1117 3.3V LDO.
The output seems fine and everything works but the MCU connected to 3V3 sometimes goes bad.
I checked on multimeter and the voltages are proper.
I am using 47uF at input of 1117 and 10uF and output.
I donot see a very constant output when i check the LDO output on CRO.
How can I make the output more constant. Should I be using a inductor in series at output of LDO, if so what value. How do I calculate this?