The maximum output power of the TNY274GN-TL is 25W, but it can be derated based on the input voltage, output voltage, and ambient temperature.
To ensure the TNY274GN-TL operates within its SOA, follow the guidelines in the datasheet for input voltage, output voltage, output current, and ambient temperature. Also, make sure to provide adequate heat sinking and thermal management.
The BYPASS pin is used to connect a bypass capacitor to reduce the noise on the output voltage. Connect a 10nF to 100nF ceramic capacitor between the BYPASS pin and the output voltage pin (VOUT) to improve output voltage stability and reduce electromagnetic interference (EMI).
Choose an input capacitor with a voltage rating that exceeds the maximum input voltage, and a capacitance value that meets the recommended minimum value specified in the datasheet (typically 1uF to 10uF). The capacitor should also have a low equivalent series resistance (ESR) to minimize input voltage ripple.
The COMP pin is used to connect an external compensation network to stabilize the output voltage. Connect a resistor (R1) and capacitor (C1) in series between the COMP pin and the output voltage pin (VOUT) to form a compensation network. The values of R1 and C1 depend on the specific application and output voltage requirements.