is a low startup current, current mode PWM
controller with green-mode power-saving operation. The SOP-8/DIP-8 package integrates functions such as the leading- edge blanking of the current sensing, internal slope compensation, line compensation, and several protection features including cycle-by-cycle current limit, OVP, OTP, OLP, and brownout protection. It provides the users a high efficiency, low external component counts solution for AC/DC power applications. Furthermore, to satisfy various protection requirements, both latch-mode protection and auto-recoverable protection can be easily achieved by configuring LD7523A
on different operation modes. The special green-mode control is not only to achieve the low power consumption but also to offer a non-audible-noise operation when the LD7523A
is operating under light load or no load condition.