Lowest Component Count, Energy-ef?cient Off-line Switcher Ic

  Cost Effective Linear/Cap Dropper Replacement ? Lowest cost and component count buck converter solution ? Fully integrated auto-restart for short-circuit and open loop fault protection ? saves external component costs ? LNK302 uses a simpli?ed controller without auto-restart for very low system cost ? 66 kHz operation with accurate current limit ? allows low cost off-the-shelf 1 mH Inductor for up to 120 mA output current ? Tight tolerances and negligible temperature variation ? High breakdown voltage of 700 V provides excellent input surge withstand ? Frequency jittering dramatically reduces EMI (~10 dB) ? minimizes EMI ?lter cost ? High thermal shutdown temperature (+135 ?C minimum) Much Higher Performance over Discrete Buck and Passive Solutions ? Supports buck, buck-boost and ?yback topologies ? System level thermal overload, output short-circuit and open control loop protection ? Excellent line and load regulation even with typical con?guration ? High bandwidth provides fast turn-on with no overshoot ? Current limit operation rejects line ripple ? Universal input voltage range (85 VAC to 265 VAC) ? Built-in current limit and hysteretic thermal protection ? Higher ef?ciency than passive solutions ? Higher power factor than capacitor-fed solutions ? Entirely manufacturable in SMD EcoSmart ? Extremely Energy Ef?cient ? Consumes typically only 50/80 mW in self-powered buck topology at 115/230 VAC input with no load (opto feedback) ? Consumes typically only 7/12 mW in ?yback topology with external bias at 115/230 VAC input with no load ? Meets California Energy Commission (CEC), Energy Star, and EU requirementsLNK306's datasheet is the same as LNK302
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LNK302 pinout from datasheet
Power Integrations, Inc.

Download LNK306 datasheet