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Author Topic: Choose an inductor and capacitor for AOz3103di buck converter  (Read 1573 times)

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Offline nourTopic starter

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Choose an inductor and capacitor for AOz3103di buck converter
« on: July 27, 2017, 05:25:19 am »
I want to build a Fixed 5v buck converter with 2.5 Amps output from a 12v input, I will be using AOZ3103DI. 
I want to select the inductor to be able to handle the output current with minimal output ripple, I have tried to read the datasheet but I am a little bit lost. 

Link to the datasheet
http://www.aosmd.com/res/data_sheets/aoz3103di.pdf
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Offline nourTopic starter

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Re: Choose an inductor and capacitor for AOz3103di buck converter
« Reply #1 on: July 27, 2017, 07:59:29 am »
I am expecting the load to range from 1-2.5 amp
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Offline nourTopic starter

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Re: Choose an inductor and capacitor for AOz3103di buck converter
« Reply #2 on: July 27, 2017, 09:10:42 am »
Ok that is very good, what about the capacitor, the CC and the CBST

I don't know why don't they give values for the typical application, at least recommend one or two general outputs like 5v or 3.3v?
Thanks
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if what I have wrote doesn't make sense for you or you think there is something wrong, please correct me, I am still beginner and what I know probably less than what you know
 

Offline nourTopic starter

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Re: Choose an inductor and capacitor for AOz3103di buck converter
« Reply #3 on: July 27, 2017, 09:38:25 am »
Thanks a lot, I think for the Cout I will go for low ESR 100 or 220uF tantalum cap for 2.5A
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if what I have wrote doesn't make sense for you or you think there is something wrong, please correct me, I am still beginner and what I know probably less than what you know
 
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