Datasheet LD7552 Equivalent ( PDF ) - Controller

LD7552 2, 21, 2005 Green-Mode PWM Controller General Description The LD7552 is a low cost, low startup current, current mode PWM controller with green-mode power-saving operation. 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

LD7552B 1, 2, 2008 Green-Mode PWM Controller with Integrated Protections Rev. 01a General Description The LD7552B are low cost, low startup current, current mode PWM controllers with green-mode power- saving operation. The integrated functions include the Features - - - - - - - - - - z High-Voltage CMOS Process with Excellent ESD protection Very Low Startup Current (<20μA) Current Mode Cont

LD7552D 12, 19, 2007 Green-Mode PWM Controller with Integrated Protections and Adjustable OLP Delay Time REV: 00 General Description The LD7552D are specifically designed for the low total system cost by integrating many functions, protections, and the EMI-improved solution in a SOP-8 package which usually need a lot of extra components or circuits on the general designs. The implemented function