The datasheet for the LM2678 uses the terms "c code" and "No." for certain capacitors to use in the sample circuits. But when going to the manufacturer datasheets for these capacitors they make no reference to any "c code" or one single number for a capacitor. If anyone could help me understand what these mean and how to find these specific capacitors from the manufacturers capacitor datasheet I would really appreciate it. The image bellow is one of the tables where these terms are mentioned.
Hi Mike ,
Refer to Section 8.2.2.1 of the datasheet for detail on choosing the capacitor .
Once you figure out the inductance value ie lets suppose for 3V output - 33uH inductance you can see there are four options ie to either use
1 *C3 capacitor in parallel(Sanyo OS Con -SA series) or 3*C1 (Sanyo MV-GX caps in parallel) etc .
Now use the table 2 to get exact specification ie
1* 330uF ,6.3V , 1A rated Sanyo SA series capacitor or 3*1000uF ,6.3V,0.8A(Sanyo MV-GX caps) etc.
Further you may also use Webench and generate the BOM for your specification .
---Ambreesh
Ambreesh Tripathi said:Hi Mike ,Refer to Section 8.2.2.1 of the datasheet for detail on choosing the capacitor .
Once you figure out the inductance value ie lets suppose for 3V output - 33uH inductance you can see there are four options ie to either use
1 *C3 capacitor in parallel(Sanyo OS Con -SA series) or 3*C1 (Sanyo MV-GX caps in parallel) etc .
Now use the table 2 to get exact specification ie
1* 330uF ,6.3V , 1A rated Sanyo SA series capacitor or 3*1000uF ,6.3V,0.8A(Sanyo MV-GX caps) etc.
Further you may also use Webench and generate the BOM for your specification .
---Ambreesh
Thankyou! I can't believe I didn't see that before!
