LNK306 Energy-Efficient Off-Line Switcher IC:
LinkSwitch™-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
LNK304-306 safely limits output power during fault conditions such as short-circuit or open loop, reducing component count and system-level load protection
cost.
A local supply provided by the IC allows use of a non-safety graded optocoupler acting as a level shifter to further
enhance line and load regulation performance in buck and buck-boost converters, if required