have a question about the LDO chip TLE4266G. What we need is to transfer 12V to 5V , I read the datasheet of the chip , and find out the Figure3 on page7 .
Here is the question : There are two capacitors before the input pin of , one is 470uF , the other is 100nF . I know that the larger capacitor is to filter the low Frequency Noise and the lower capacitor is to filter the High Frequency Noise .
1. What if I change the 470uF to 100uF ? What kind of effect it will be ?
2. The 100nF should be ceramic kind . What about the 470uF ? Should it be aluminium electrolytical or tantalum electrolytical or other material? (Our space is very limited , especially the height of the capacitor , I know aluminium electrolytical capacitor is very large.)
Thank you. Your reply is highly appreciated.