通用交流输入；以固定频率工作的 5V/2A USB 适配器
This reference design provides an isolated 5V/2A output from a universal 85-265VAC input. It uses the UCC2809 PWM controller to provide a fixed 100kHz operation. Maximum load efficiency is over 80%. The output is power limited (not current limited) so an additional load switch such as a TPS2001C may be required for some applications.
详情介绍
Power Tips: Compensating Isolated Power Supplies
In this Power Tips "Ask the Expert" video Dave asks TI’s Brian King to gain insight to the location of the compensator poles and zeros.