I would need pinouts, for a linear 2.5 volt regulator that is in Seagate ST3750330AS, the regulator has 6-pins and it is located above the SDRAM chip.

There are following numbers and characters on top of the IC

9822
1(or something like that)L02
2.5

ST1L02PM, Very low quiescent bicmos voltage regulator, Fixed output voltage: 1.8V, 2.5V, 3.3V:
http://www.datasheetarchive.com/pdf-dat ... 630896.pdf
http://www.st.com/stonline/products/lit ... /11242.pdf

Here is an equivalent part that is sometime used:

LP38691SD-2.5, 2.5V, 500mA LDO CMOS Linear Regulator, National Semiconductor, marking L119B:
http://www.national.com/ds/LP/LP38691.pdf

These URLs should help you identify the components:

http://hddscan.com/doc/HDD_from_inside.html
http://www.users.on.net/~fzabkar/HDD/HDD_ICs.txt
http://www.users.on.net/~fzabkar/HDD/TVS_diodes.txt

BTW, "9822" appears to be a YWW (Year/Week) date code, ie week 22 of 2008.

:-)

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