Help indentifying IC chip for small 5v step up converter.

Thread Starter

daddyfredregill

Joined Mar 29, 2017
31
I am in the process of designing a circuit that requires 5v. My power source is a 3.7v lipo cell.

I have the power circuit already in the pcb design. I based it off of a small step up converter i found on a cheap chinese site.

I was hoping to find out what this chip actually is and source it but i am unable to find it.

The IC chip is a ME2108A50 SOT-23

3436818087_1231449956.220x220.jpg

I dont even know what kind of IC it is but i need to be able to source it or find one that is similar. It needs to remain very small I have no more room on my pcb.

Thanks for your time.
 

Thread Starter

daddyfredregill

Joined Mar 29, 2017
31
It's part of a Dc to Dc buck booster from China.

http://sales.dzsc.com/297711.html
I finally found that out as well, unfortunately i can not find any in the states. I think I will have to go with a sot23-5 pin module. Does the samething but 2 pins are not utilized.

Here is the one I am looking at.https://www.digikey.com/product-detail/en/maxim-integrated/MAX1724EZK50-T/MAX1724EZK50-TCT-ND/948254

I hope it works, i am unsure as to what components I need with this IC so if anyone can help it would be much appreciated.
 

Dodgydave

Joined Jun 22, 2012
8,606
If you look at the diagram on the Chinese link, it gives four external components, a nFet, an inductor, a diode and a capacitor, all are listed at the bottom of the circuits.
 

Thread Starter

daddyfredregill

Joined Mar 29, 2017
31
If you look at the diagram on the Chinese link, it gives four external components, a nFet, an inductor, a diode and a capacitor, all are listed at the bottom of the circuits.
So if i apply these components to my new 5 pin chip it should work similar? Or will i have to pick 2oit different values per the data sheet?
 
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