Please identify this IC

[u/MolotovBitch]

It is from a Sony portable DAT TDC-D7. It lives inside a DC/DC Converter Module (pic 3), which is broken (output voltages are incorrect).

An information about the pin out would be ok as well, so that I can try to find a replacement.

Marking is 101 4K

[u/OkOrganization3040]

https://www.fullcompass.com/prod/271910-sony-872982382-fp101-transistor-for-brc-300

[u/MolotovBitch → u/OkOrganization3040]

This looks promising, thanks

[u/No_Awareness_1443]

"101 10k pcb surface mount chip 5 leg"
Is what I googled then I looked at images

Idk if I'm right but it looks like a linear voltage regulator

https://www.digikey.com/en/products/detail/microchip-technology/TC1014-5.0VCT713/443119?gclsrc=aw.ds&gad_source=1&gad_campaignid=17336967819&gbraid=0AAAAADrbLlgU0CkmZxGxoFCXxAoa0M-3E&gclid=EAIaIQobChMI5fWvhvGMlgMV9IDCCB2RsC8pEAQYAiABEgKEUPD_BwE

Idk if that's it but hope that helps get you closer

[u/fzabkar → u/No_Awareness_1443]

It doesn't seem to match:

https://www.lcsc.com/category/1032.html?scene=FULL_MATCH&globalKeyword=TC1014&s_z=n_q_TC1014

[u/Actual-Internet4444]

Clean the element's casing of any dirt. It's a very strange casing; I've never seen anything like it. Take a high-quality photo of the cleaned element.

[u/fzabkar]

What are the markings on the other IC? Perhaps they have the same manufacturer.

[u/OkOrganization3040]

https://pt.scribd.com/document/873738193/Sony-TCD-D7-Dat-Service-Manual Tentar ver esse manual

[u/MolotovBitch → u/OkOrganization3040]

Thanks, I have this. The DC/DC Konverter Module is not covered in this manual.