The LD7575B is a current-mode PWM controller with excellent power-saving operation. It features a highvoltage current source to directly supply the startup current
from bulk capacitor and further to provide a lossless startup circuit. The integrated functions such as the leading-edge blanking of the current sensing, internal slope compensation,
and the small package provide the users a high efficiency, minimum external component counts, and low cost solution for AC/DC power applications.
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