Lenovo LOQ - LA-N221P Rev 1.0 Schematics or PU301 ic code?

[husnu16]

Hello my precious masters;
Lenovo LOQ - LA-N221P Rev 1.0 I need the code/model number of the PU301 integrated circuit on this mb. The integrated circuit is burnt and cannot be read. Can you help me with this?

[husnu16]

Hello, is there anyone who can help with this?

[pooya_pm]

I NEED TOO

[anshad]

Hello my precious masters;
Lenovo LOQ - LA-N221P Rev 1.0 I need the code/model number of the PU301 integrated circuit on this mb. The integrated circuit is burnt and cannot be read. Can you help me with this?

I think it's a SY8386B chip - 3.3v fixed voltage converter. Datasheet isn't available and hence i can't provide one. There is datasheet for SY8386R but the pin out has many differences. You may find another schematic which uses this IC and cross check to match. However, a short in 3.3v can kill the PCHA/SoC easily. Check the coil resistance first for short.

[husnu16]

Hello master, thank you for your answer. There was a pch short situation on the device. We made the necessary repairs but we are stuck at pu301. If I can find out what this is, I can move forward.

[husnu16]

I found out what integrated is. Here it is. Thanks to everyone who tried to help.

YQxxx
SY8388BRHC

High Efficiency Fast Response 10A, 23V Input Synchronous Step Down Regulator.

[Dann4419]

SY8388BRHC_QFN16

[Ajay suthar]

Lenovo LOQ 15IAX9 LA-N221P motherboard
UA1 sound ic number?

[Gernet]

UA1 sound IC is ALC3287

[Ajay suthar]

Thanks for help 👍👍

[ATS TUNISIE]

hello, please i need schematic or boardview of MB: LA-N221P rev:1A.
or i need the ref of

[Gernet]

Richtek "ML=.." is RT6543AGQW

[Subhasish91]

Anyone Know what this ic voltage supplying and pin detail,PU1001 on motherboard LA-N221 details Marked B3FUE 16Pin,Currently it supplying 0.837 V i am doubtfull of this supply voltage.
attached pic.
if Anyone having boardview or schematic that will be greatfull

[Ajay suthar]

SY8388ARHC

[Subhasish91]

SY8388ARHC

Thanks 🙂