need help identifying component....

Got a Nikon Coolpix P3 digicam for repair. I see a pitted 8 pin smd dip package with " D91 04 BU" written on it. Anyone here knows what the complete part number or prefix might be? The component lies in the power supply DC-DC section. Pins 4 and 5 are grounded. Pins 1 and 8 seem to be supply points (not connected to each other). A service manual would help plenty. Thanks in anticipation, Jango

Digital cameras are repaired by authorized services. Any service information, for independents, is tough to obtain. Also, parts are a problem.

Thanx for the encouragement love, where'd i be without u?. Almost everything is repaired by those glorified authorised service centres these days, does that mean i should wind up my act and make a career shift??? Grow onions maybe?, i hear onion prices are spiraling. Well, i found the datasheet, it's a BD9104FVM = single channel dc/dc convertor controller. Now i hope i get a replacement. Still keen on that Nikon coolpix p3 service manual. This unit's been messed with. Jango.

It's a conspiracy! Oh well, I like onions.