The TOP248 is a highly integrated, monolithic off-line switcher IC designed for use in low-power offline flyback converters. Manufactured by Power Integrations, it incorporates a 700 V power MOSFET, high-voltage switched current source, and current-mode PWM control circuitry into a single chip.
The LNK623-626 is an offline switcher IC designed to simplify the switched mode power supply design by eliminating the need for an optocoupler and secondary CV control circuitry. It features a very accurate primary-side Constant-Voltage (CV) control.
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 LNK364PN integrated circuit, a member of the LinkSwitch-TN family produced by Power Integrations, stands out for its utility in low-power, off-line switch mode power supplies.