IC Marking Codes and Datasheets #2

[SMDFlea]

Dear friends, I am working on Lenovo Yoga 7 14IRL8, no schematic available. Upon trouble shooting I found this chip shorted. There is a code marking S2=AB on this chip, but could not find this marking (View Photo). I thnk this chip is soldered on the 3.3V or 5v rail. Can someone help me finding the real number of the chip. Thanks in advance.

When the marking has an = its probably a richtek part https://www.badcaps.net/forum/troubl...19#post1482819 Google search - richtek S2=

How many pins does it have,it might be a RT6310CGQUF https://www.richtek.com/assets/produ.../DS6310-04.pdf

[mferna14]

Dear friends, I am working on Lenovo Yoga 7 14IRL8, no schematic available. Upon trouble shooting I found this chip shorted. There is a code marking S2=AB on this chip, but could not find this marking (View Photo). I thnk this chip is soldered on the 3.3V or 5v rail. Can someone help me finding the real number of the chip. Thanks in advance.

[mon2]

Check your pm. Sent you the full data sheet.

[javieromex]

Looks pretty similar, however, SY8371B might be 3V (see attached only information I was able to find, only 11 pages).

[mon2]

See the first link - the webpage has the details you are requesting. For now, unable to download the full datasheet from their website but the landing page has the pinout.

[javieromex]

Thanks, mon2, its present on Asus B1400CEPEY.

[mon2]

SY8371BTMC-产品中心-矽力杰 (silergy.com)


I found only SY8370 but it may be close. Which board uses the SY8371B?

[javieromex]

Hello, looking for pinout of SY8371B Marking DFAXXX, DFA, DFADMB. Thanks!

[bumper1]

SY8388RHC is Kd* ( I have few KdDXA on DELL LA-K453P REV 1.0)

[SMDFlea]

Can anyone help me find the real name of this component? ARM J24 220 dell precision 7820 ic pu52 and pu54

MPQ8623GD Monolithic Power https://www.badcaps.net/forum/troubl...20#post1482820

Marking list 2022 https://www.badcaps.net/filedata/fetch?id=2089349

Datasheet https://www.monolithicpower.com/en/d...ument_id/4279/

[xuandan]

Can anyone help me find the real name of this component? ARM J24 220 dell precision 7820 ic pu52 and pu54

[agradim]

Another one from monotlithic power, for AQPK marking the component is NB681AGD used in the HP SPECTRE X360 13 DA0X36MBAE0 Rev.E

Datasheet below
https://www.monolithicpower.com/en/d...ument_id/6394/

[abouterfan]

Found the manufacturer:

Welcome to Vimicro

One of their datasheets - contact the factory for the datasheet:

WS9621NLSE Datasheet (narincomicro.com)

thanks i contact to the company email and waiting for any response from company

[abouterfan]

hey everyone,
FRCXA can anyone mark this ic please?
thiis ic is on the harman kardon onyx studio 5 board

[mon2]

Found the manufacturer:

Welcome to Vimicro

One of their datasheets - contact the factory for the datasheet:

WS9621NLSE Datasheet (narincomicro.com)

[abouterfan]

hey everyone can anyone send me datasheet of this bluetooth ic?
this module and ic is on the harman kardon aura studio 3
i want make somewhere can buy this full module or single ic

[mon2]

Perhaps:

https://assets.nexperia.com/document.../74AUP1T97.pdf

check the body and need to trace the cap pins

[mon2]

I believe the vendor is ONSEMI. Actually, looks more like NEXPERIA.

See here - similar style of markings:

74AUP1T34 PQ | Minería Zeus (zeusbtc.com)

[magneh]

Hello!

Im struggling a bit to identify this little 6 leg guy with the marking "-59-" or "_65_" not sure of the orientation...



It belongs to a Mac Pro 2019 logic board model 820-01136-12
No schematics or boardview available.

Can someone more experienced in this IC identification help?
Thank you

[mon2]

Thanks. To the OP - pour alcohol onto the top surface to clarify if the first marking is an '8' or a 'B'. Appears to be a 'B' to me. If 'B' then my guess stands. If '8' then agree with the correction - both are from ONSEMI.

Also confirm if the lower right leg is connected to anything else. If floating then 100% it is a zener diode.

MMBZ5221BLT1 - Zener Voltage Regulators (onsemi.com)