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The OB3341S is a high power factor, monolithic Buck regulator with advanced features to provide high efficiency control and high accuracy constant current output for LED lighting applications. OB3341S integrates a 2A MOSFET to decrease physical volume. It adopts constant on time control for power fa.
to provide high efficiency control and high accuracy constant current output for LED lighting applications. OB3341S integrates a 2A MOSFET to decrease physical volume. It adopts constant on time control for power factor correction (PFC), zero current detectors (ZCD) to ensure quasi-resonant valley turn-on for high efficiency operation. OB3341S offers good protection coverage including VCC under voltage lockout (UVLO), VCC over voltage protection, cycle-by-cycle current limiting, over temperature protection, COMP pin floating protection and LED open/short protection. OB3341S is provided with DI.
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