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PCB photo

It is a 6-pin SMD from 1.6W blue laser driver
The code on the case is AI531
Please help to identify this SMD.


https://tr.aliexpress.com/item/33045090236.html?spm=a2g0n.shopcart-amp.item.33045090236

can I use this? .

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1 Answer 1

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The package marking probably is: "A1" followed by "531" in a different font (like image shown below where the code is A1-287).

Image

Image source: https://www.aliexpress.com/item/32810968329.html

$$$$ It likely is the RT9284A from Richtek.

The RT9284A/B is a compact, high efficient and high integration LED driver. Internal 22V MOSFET can support 2 to 5 White LEDs for backlighting and camera flashing.

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