AP3108L PWM Controller Diodes Incorporated AP3108L PWM Controller is a high-performance current mode controller with high voltage start up. This controller is designed for an offline power supply that requires ultra-low standby power, high-power density, and comprehensive protection. The AP3108L is available in small footprint SSOP-9 package and features multiple modes of operation. The system protections include secondary side under voltage and over voltage protection, current limit, and brown-out protection. Other features include lead-free, halogen-free, antimony-free, and RoHS compliant. Applications include switching AC to DC adapter/charger, notebook adapter, and rapid charger.