LM34914 超小型1.25A降压型开关稳压器与智能电流限制 Pdf资料

应用功能： 超小型1.25A降压型开关稳压器与智能电流限制 The LM34914 Step-Down Switching Regulator features all the functions needed to implement a low cost, efficient, buck bias regulator capable of supplying at least 1.25A to the load. To reduce excessive switch current due to the possibility of a saturating inductor the valley current limit threshold changes with input and output voltages, and the on-time is reduced when current limit is detected.