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.

Low-Power Digital Temperature Sensor with SMBus and Two-Wire Serial Interface

EMI Filter Array and ESD Protection

EMI Filter Array and ESD Protection

28V, 0.15A, 3-channel Linear LED Driver with ON OFF Dimming

High Performance APLL with Multiple Output

Ultra-Low Capacitance TVS Protection

36V Synchronous Buck Controller for Automotive Application

36V, Boost/Flyback/Sepic Controller