LM22675 appears glitch

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LM22675 appears glitch

Postby liel » Wed Jan 18, 2017 10:13 am

hey guys, i recently have a "project" , and one of its purpose is to convert the voltage from 5v to 3.3v, i used LM22675 http://www.kynix.com/Search/LM22675.html,the circuit diagram is paint according to the datasheet.
But it appeared glitch after being converted, and it grows bigger with the increase of current flow.
i would like to know if anybody can help me figure out how to eliminate these glitches?
thanks a lot.
Attachments
glitch 11.png
liel
 
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Re: LM22675 appears glitch

Postby shadders » Wed Jan 18, 2017 11:16 am

Hi,

If you read the datasheet, you can implement a larger capacitor or one with very low ESR, where the data sheet mentions POSCAP or ESR SP capacitor.

Hope this helps,

Regards,

Shadders.
shadders
 
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Joined: Thu Jan 02, 2014 10:37 am


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