10 pcs - LNK304PN Power Integrations, LNK304PNStep-Down Switching Regulator, 1-Channel 170mA 7-Pin, DIPB

LNK304 LinkSwitch-TN Buck ConverterThe Power Integrations LNK304 LinkSwitch™-TN device family are Buck Converter ICs that provide a low component count step down solution. The LNK304 has been designed to offer a higher performing alternative when compared to linear and passive component solutions.ApplicationsThe LNK304 LinkSwitch buck convertor is ideal for use in appliances and timers, and for LED drivers and industrial controls.FeaturesFully integrated auto-restart for short circuit and open loop fault protection66 kHz operation with accurate current limitTight tolerances and negligible temperature variationHigh breakdown voltage of 700 VFrequency jittering dramatically reduces EMI (∼10 dB)Built-in current limit and hysteretic thermal protectionHigh thermal shutdown temperature (+135 °C minimum)Consumes typically only 50/80 mW in self-powered buck topology at 115/230 V ac input with no-load (opto feedback)Consumes typically only 7/12 mW in flyback topology with external bias at 115/230 V ac input with no-loadLinkSwitch-TN is specifically designed to replace all linear and capacitor-fed (cap dropper) non-isolated power supplies in the under 360 mA output current range at equal system cost while offering much higher performance and energy efficiency. LinkSwitch-TN devices integrate a 700 V power MOSFET, oscillator, simple On/Off control scheme, a high-voltage switched current source, frequency jittering, cycle-by-cycle current limit and thermal shutdown circuitry onto a monolithic IC.Tight tolerances and negligible temperature variationSystem level thermal overload, output short-circuit and open loop protectionSupports buck, buck-boost and flyback topologiesExcellent line and load regulation even with typical configurationHigh bandwidth provides fast turn-on with no overshootCurrent limit operation rejects line rippleBuilt-in current limit and hysteretic thermal protectionSwitching Voltage Regulators, Power Integrations