TL431简介、各个功能应用电路以及在开关电源上的应用。-TL431 profile, application circuit as well as various functional switching power supply applications.

TL431的典型应用电路，对开关电源的开发，参考电压设计的有很好的帮助(The typical application circuit of TL431 has a good help for the development of switching power supply and the design of reference voltage.)