SEP 2012:Released SY58544--Industry’s smallest 15W LED driver with PFC.
cee     09.29.2012

SY58544 adopts the Patented direct LED current sensing to ensure tight regulation on the LED current and good line regulation

Its patented high side buck switch drive topology allows the use of low cost single-winding inductor.
The Built-in power factor correction guarantees above 0.9 power factor over a universal input line. Quasi-resonant operation minimizes the power loss and EMI problem
Its high integration minimizes the external component count and board space.The compact SO8 package makes it attractive for Bulb or T8/T5 LED lamp driver where lamp housing is small and board space is premium.
 
It can be possibly used for fan driver where constant current may be required.
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