March 30th, 2024, 19:28
March 30th, 2024, 20:54
March 31st, 2024, 3:07
March 31st, 2024, 4:31
fzabkar wrote:EP53A8HQI, Enpirion, Synchronous Buck Regulator with Integrated Inductor, 1A, 2.4V - 5.5Vin, marking AMxx, QFN-16:
https://www.farnell.com/datasheets/1525815.pdf
March 31st, 2024, 4:41
I found nothing either (other than LED driver stuff) - Fzabkar has some sort of secret google foo when it comes to finding them.Amarbir[CDR-Labs] wrote: I have a question ,How do you find this out ... ?
March 31st, 2024, 6:29
Lardman wrote:I found nothing either (other than LED driver stuff) - Fzabkar has some sort of secret google foo when it comes to finding them.Amarbir[CDR-Labs] wrote: I have a question ,How do you find this out ... ?
March 31st, 2024, 10:25
Lardman wrote:I found nothing either (other than LED driver stuff) - Fzabkar has some sort of secret google foo when it comes to finding them.Amarbir[CDR-Labs] wrote: I have a question ,How do you find this out ... ?
March 31st, 2024, 10:39
March 31st, 2024, 11:55
Ah, yes I see now the bad chip has a different date code. I will measure the voltages of those caps and report back...fzabkar wrote:"128" would most likely be a YWW date code, ie week 28 of 2011.
If you measure the voltages on C30 and C31 on your donor PCB, that should help us to identify the function of U10. For example, they could be the filter caps for Vin (5V) and Vout. That would then suggest that the part is a converter, either linear or switchmode (with on-chip inductor).
As others have stated I have no idea how you found this so quickly, but this is very much appreciated.fzabkar wrote:EP53A8HQI, Enpirion, Synchronous Buck Regulator with Integrated Inductor, 1A, 2.4V - 5.5Vin, marking AMxx, QFN-16:
https://www.farnell.com/datasheets/1525815.pdf
Sorry about that I will attach additional images...Amarbir[CDR-Labs] wrote:fzabkar wrote:EP53A8HQI, Enpirion, Synchronous Buck Regulator with Integrated Inductor, 1A, 2.4V - 5.5Vin, marking AMxx, QFN-16:
https://www.farnell.com/datasheets/1525815.pdf
Hi,
I have a question ,How do you find this out ... ? , This has Three pin whose state determines the output voltage ,Might be after taking this chip out you can check the voltage on VS0,1,2 , That will help is finding out what voltage was it giving out .I also would like to ask the party that started this thread to please post photos of the SSD from both sides along with top cover so that we know what we are dealing with
March 31st, 2024, 14:15
March 31st, 2024, 14:56
thewisewizard wrote:I think I have so info now to start testing. Admittedly I am a novice in terms of diagnosing/testing...are there any specific tests you guys recommend I try first (outside of any already mentioned above)?
April 1st, 2024, 0:58
April 5th, 2024, 15:48
April 5th, 2024, 16:31
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