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 Post subject: Need help IDing SOT23-5 chip on TEAMGROUP / Patriot 120gb
PostPosted: May 5th, 2021, 17:02 
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Joined: May 5th, 2021, 16:05
Posts: 3
Location: United States
Greetings.

I am trying to get these working again. Data on these is not important. Hotswap or current damage.

One is a Patriot Burst 120gb and the other is a TEAMGROUP GX1 120gb.

I can't seem to find out what the SOT23-5 chips are. On one they said 578BR on the other 578BW. I am assuming DC-DC converter but no idea.

Middle pin on 3 leg side is ground.


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 Post subject: Re: Need help IDing SOT23-5 chip on TEAMGROUP / Patriot 120g
PostPosted: May 5th, 2021, 22:57 
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Joined: September 8th, 2009, 18:21
Posts: 13300
Location: Australia
http://www.gmt.com.tw/product/datasheet/EDS-5728B_5728C.pdf

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 Post subject: Re: Need help IDing SOT23-5 chip on TEAMGROUP / Patriot 120g
PostPosted: May 6th, 2021, 1:46 
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Joined: May 5th, 2021, 16:05
Posts: 3
Location: United States
fzabkar wrote:


Awesome. Thank you.

I have another sdd. ADATA SU650. Similar SOT23-5 marked [3102] also shorted, possibly the same?


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 Post subject: Re: Need help IDing SOT23-5 chip on TEAMGROUP / Patriot 120g
PostPosted: May 6th, 2021, 1:56 
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Joined: May 5th, 2021, 16:05
Posts: 3
Location: United States
fzabkar wrote:


I found your PCB Protection Devices posts on another site and it helped me get two Kingston's going. Electronic fuses were open.

Thank you for that too good sir.


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 Post subject: Re: Need help IDing SOT23-5 chip on TEAMGROUP / Patriot 120g
PostPosted: May 6th, 2021, 16:31 
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Joined: September 8th, 2009, 18:21
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Location: Australia
It has the wrong pin count, but ...

MT3102, M3Tek, 1.5A Continuous 2A Peak 5V Input 2.5MHz Synchronous Step-Down Converter, marking 3102, DFN_6L:
https://www.m3tekic.com/upload/2016/08/20160826154353.pdf

http://www.users.on.net/~fzabkar/Datasheets/DATAURLS.HTM

Datasheets for SSD and Flash Drive ICs:
http://www.hddoracle.com/viewtopic.php?f=100&t=1577

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 Post subject: Re: Need help IDing SOT23-5 chip on TEAMGROUP / Patriot 120g
PostPosted: May 6th, 2021, 17:03 
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Joined: September 8th, 2009, 18:21
Posts: 13300
Location: Australia
From this photo ...

https://goughlui.com/wp-content/uploads/2018/12/2018121421224653.jpg

... it would appear that the pinout for "3102" is ...

    1 = Pgood or Enable
    2 = Ground
    3 = Lx
    4 = Vin
    5 = Feedback

Since the 16-pin IC is made by M3Tek, I'm wondering whether "3102" is a special 5-pin version of the MT3102.

MT3123 / MT3123A / MT3123B, M3Tek, 5V 4A 1.25MHz 15uA Low Iq FAST-PWM Synchronous Step-Down Converter, marking 3123 / 3123A / 3123B, QFN3x3_16L:
http://www.lctek.net/uploadfile/cfile/upload/2016852311282.pdf

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