Help identifying power converter


#1

Hello. Can you please help/identify this power converter from a guitar pedal? In attached pic, it’s U701, centered. It measures about 4x5mm. I see the markings on it say TPS5420 7CK J6Y5, and I found the Digikey page about TPS5420… I’m just now not sure which one to pick from there.

Do you have any tips about the codes: 7CK J6Y5? Is one of those (or both?) just a production/batch number?

Thanks much for your help on this and any tips so I can pick the right one in the future.
Zack


#2

Hello Zack!

Looks like a 8-SOIC package. I would suggest going with 296-31984-1-ND as that coordinates with the part markings and packaging.

Lindsay


#3

Thanks. So are all the variations of this part different sizes and numbers of legs? Was there any other pointer to key into the one you picked?


#4

Great question. There is actually a TI part marking lookup webpage (http://www.ti.com/packaging/docs/partlookup.tsp). Entering in the TPS5420 into it brings up a product match of the TPS5420D.

The bulk verison is TSP5420D (Digi-Key # 296-19671-5-ND) but the reeled version (TPS5420DR / Digi-Key # 296-31984-1-ND) looks to be a little bit less expensive, that’s why I went with that one instead. :slight_smile: Same part, just different factory packaging.


#5

Great, thanks. Nice to have you and others help out here, but thanks for the TI lookup page tip to help me find stuff on my own, too.
Zack