The LD7523A 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.