An embedded ac to dc converter is included in 24-UFQFN Exposed Pad package.It is available in Tape & Reel (TR) AC/DC power converter.As you can see, this AC/DC converter is mounted in the way of Surface Mount .For the ac dc converter to perform properly, it should be operated at a temperature of -40°C~85°C °C.20kHz~150kHz is the switching frequency.It can be used within the range of 2.7V~5.5V supply voltage (Vcc/Vdd).
CYPAS111A1-24LQXQT Features
Packaged with 24-UFQFN Exposed Pad Switching Frequency at 20kHz~150kHz
CYPAS111A1-24LQXQT Applications
There are a lot of Cypress Semiconductor Corp CYPAS111A1-24LQXQT AC DC Converters applications.