So, I have been working on a board for a friend and have narrowed down the problem to 1 IC (so far). Information is as follows:
Appears to be a QFN-16 IC (99% sure) - Measurements 3.16mm X 3.16mm - Markings:
D9B (The B could be an 8)
302
BH
The repair guide from Sony describes this as IC9009 which is a DDCON for this board. I am assuming that it is a buck converter. I have searched online for quite some time now to no effect. Most SMD code guides don't have any QFN packages or are very limited. Ideally, if someone could help me find the manufacturer, I could probably do the rest of the legwork. I have found similar products available on mouser, but without a data sheet for the OG part, I have nothing to compare it to. I tried google, various marking sites, and even google images (tried search with 8 instead of B as well).
I have attached the affected board diagram and sample pic of a qfn-16 for reference.
Appears to be a QFN-16 IC (99% sure) - Measurements 3.16mm X 3.16mm - Markings:
D9B (The B could be an 8)
302
BH
The repair guide from Sony describes this as IC9009 which is a DDCON for this board. I am assuming that it is a buck converter. I have searched online for quite some time now to no effect. Most SMD code guides don't have any QFN packages or are very limited. Ideally, if someone could help me find the manufacturer, I could probably do the rest of the legwork. I have found similar products available on mouser, but without a data sheet for the OG part, I have nothing to compare it to. I tried google, various marking sites, and even google images (tried search with 8 instead of B as well).
I have attached the affected board diagram and sample pic of a qfn-16 for reference.
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