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How to select capacitor for regulator?

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eka_a_k

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I need to convert from 3.3V to 1.8V using a regulator. The board working at 133MHz. From regulator manual, I need to place 0.1uF to 1uF low ESR capacitor as the input capacitor. My question is how to select capacitor for the feedback capacitor and output capacitor?

Thanks,
Eka AK
 

lunar

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hi,
i am using a regulator by "linear"
LT1764A
ET-1.8
3222863

see the attatchment i hope this helps
i am using this ckt it works PERFECT.
 

eka_a_k

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Hi Lunar,
Thanks for the answer. But I have some more questions:
1) What using a regulator by "linear" means?
2) How did you choose the capacitor (10uF and 0.1uF)? And, why did you need two capacitors for each value?

If you have good reference to read, I'll thanks for that.

Sorry for stupid question. Actually I do digital design but accidentally I need to develop a board too.

Thanks,
Eka AK
 

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