convert 5V to 3.3V using LM1117 voltage rgulator

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convert 5V to 3.3V using LM1117 voltage rgulator

Postby kwlew » Thu Feb 24, 2011 11:50 am

how can i convert from 5V to 3.3V using LM1117 voltage regulator?
can u please provide some example of the circuit diagram.
thanks.
kwlew
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Re: convert 5V to 3.3V using LM1117 voltage rgulator

Postby robosang » Thu Feb 24, 2011 12:52 pm

kwlew WROTE:how can i convert from 5V to 3.3V using LM1117 voltage regulator?
can u please provide some example of the circuit diagram.
thanks.


Where did you get tha regulator? Have you search for the datasheet? Should have explain in datasheet about the typical circuit diagram, right?

I have google and found the datasheet. The circuit is quite straight forward, similar to the normal voltage regulator, LM7805, but the pin assignment is different. The center pin is output instead of Gnd. While the input is on the right side and output is on the left. Put some capacitor at the input and output, should be good to go!
robosang
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Re: convert 5V to 3.3V using LM1117 voltage rgulator

Postby kwlew » Wed Mar 02, 2011 11:44 am

thanks.
kwlew
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Posts: 13
Joined: Thu Feb 24, 2011 11:40 am


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