James Corbin wrote:
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Is there any common technique for heatsinking such a small enclosed device?


Mybe you could use the pins of the IC and a some what big copper (unmasked)area of your PCB to get some relief .


Sanjeev

PS: You can also make some mechanical arrangement for holding heat sink with screws and nuts on the top surface of the device along with some silicon past this will improve heat dissipation .