1.内置MOS管（SP5610为外置MOS管），效率高；                                                                                                                                                   

 2.原边反馈，省431和光耦，节省成本；                                                                                                                                                          

3.即可CC模式做恒压，也可CV模式做恒流,恒流恒压精度±5%以内；                                                                                                                                                                                

4.带抖频，EMI效果好；                                                                                                                                                 

5.带降频，降低待机功耗（≤0.15W）.