AP3103-DIP

The AP3103 is a low startup current mode PWM controller with green-mode power-saving operation. The PWM switching frequency at normal opera-tion is externally programmable and is trimmed to a tight range. The dithering of frequency will improveEMI features. When the load decreases, the frequency will reduce and when at a very low load, the IC willenter the ‘skip mode’ to minimize switching loss.About 20kHZ frequency switching is avoid the audible noise as well as reducing the standby loss.The AP3103 features a lot of functions such as the Leading-Edge Blanking (LEB) of the current sensing,internal slope compensation and several protective functions including cycle-by-cycle current limit(OCP), VCC Over Voltage Protection (VOVP), OTP,OLP protection.