LNK305 Datasheet | Power Integrations

LNK302/304-306 LinkSwitch™-TN Family Lowest ponent Count, Energy-Efficient Off-Line Switcher IC Product Highlights Cost Effective Linear/Cap Dropper Replacement - Lowest cost and ponent count buck converter solution - Fully integrated auto-restart for short-circuit and open loop fault protection - saves external ponent costs - LNK302 uses a simplified 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 filter cost - High thermal shutdown temperature (+135 °C minimum) Much Higher Performance Over Discrete Buck and Passive Solutions - Supports buck, buck-boost and flyback topologies - System level thermal overload, output short-circuit and open control loop protection - Excellent line and load regulation even with typical configuration - 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 efficiency than passive solutions - Higher power factor than capacitor-fed solutions - Entirely manufacturable in SMD EcoSmart™- Extremely Energy Efficient - 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 flyback topology with external bias at 115/230 VAC input with no-load - Meets California Energy mission (CEC), Energy Star, and...