The SY21401 is a current mode DC/DC controller targeted for Boost, SEPIC, Flyback and Forward applications. The SY21401 has an accurate DC input current limit. External compensation provides flexible adjustment of control loops for different applications. The internal low side driver is capable of sourcing 1.5A and sinking 3A current.

The SY21412A is a current mode DC/DC controller targeted for both boost and SEPIC applications. SY21412A has accurate output current limit. External compensation provides flexible adjustment of control loops for different applications. The internal low side driver is capable of sourcing 1.5A and sinking 3A current.

36V, Boost/Flyback/Sepic Controller

High Efficiency 300kHz, 25V Boost/SEPIC Controller with Output Current Limit

Ultra-Low Capacitance ESD/Surge Protection

Highly integrated Active Clamp PWM controller

Analog Class-D AUDIO IC for Automotive Application

High Performance, High Fidelity 20W Digital Audio-Power Amplifier

1.8V Minimum Input and 5. 5V Maximum Output 3A Peak Current Synchronous Boost with Output Disconnect

1.8V Minimum Input and 5. 5V Maximum Output