CM6901 is a SLS, SRC/LLC + SR resonant controller and it can operate at both SRC and LLC region with synchronous rectification to achieve high efficiency. Its unique features: FM + 2 PWMING modes. It is used for DC-DC conversion in offline application. FEATURES 90+ Controller Smaller and Thinner Transformer 20ms with reasonable Bulk Cap(hold up time) SLS, SRC/LLC + SR resonant controller 2 Gate Drivers: Typical Peak Drive from 12V supply : (PMOS~200 ohm and NMOS~100 ohm). UVLO =11V with 1V Hysteresis. Reference OK Comparator. FM + 2 PWMING Mode Operation Light Load PWMING (light load regulation) SR Ideal Diode PWMING(cross resonant frequency application ) GM FEAO, FM modulation Error Amplifier GM DEAO, PWM Error Amplifier Soft start Capability with Shutdown Function. Auto-Restart during Current LIMIT. Precision 2.5V VFB threshold for constant voltage feedback loop. Precision 1V I limit threshold (ILIM). Patented