The TNY280 is an energy-efficient AC-to-DC converter IC belonging to the TinySwitch-III series from Power Integrations. It features an integrated high voltage, 700V power MOSFET with control circuitry.
The TPS60403 is an unregulated charge pump voltage inverter IC from Texas instruments. It has a wide working voltage ranging from 1.6V to 5.5V. One interesting fact is that the TPS60403 requires only three 1uF capacitor to operate.
The MP9486 is a high-voltage, step down converter from Monolithic Power Systems. It can deliver up to 1A of continues current. The MP9486 can handle a wide range of input voltage ranging from 4.5V to 100V.
The XTR111 is a precision voltage to current converter chip from Texas Instruments. It is capable of processing standard 0mA-20mA or 4mA-20mA analog signals. The XTR111 can source up to a maximum current of 36mA.