karthickb3e
Advanced Member level 4
Hi,
I designed a 3.3V Linear regulator using IC 78l33 "ST Microelectronics" .
1.) How to fix the values of i/p and o/p capacitors??
2.) I just followed the recommendations in Data sheet and applied 0.33 uF capacitor at the output and a 0.1 uF ceramic capacitor at the input.
3.) What is method used to calculate these values ?? and this value is changed for other manufacturers ??
4.) How to arrive at the apt values of capacitors needed from the load requirements??
5.) What is the role played by this high value o/p capacitor?? its ESR is large and they dont supress ripple or not a good vicinity source , then y use them....
6.) in case not following of manufactures recommendations, what happen and why?
please help
I designed a 3.3V Linear regulator using IC 78l33 "ST Microelectronics" .
1.) How to fix the values of i/p and o/p capacitors??
2.) I just followed the recommendations in Data sheet and applied 0.33 uF capacitor at the output and a 0.1 uF ceramic capacitor at the input.
3.) What is method used to calculate these values ?? and this value is changed for other manufacturers ??
4.) How to arrive at the apt values of capacitors needed from the load requirements??
5.) What is the role played by this high value o/p capacitor?? its ESR is large and they dont supress ripple or not a good vicinity source , then y use them....
6.) in case not following of manufactures recommendations, what happen and why?
please help
