[Leadtrend Technology Corporation]

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.

FEATUREs
● High-Voltage CMOS Process with Excellent ESD
   protection
● Very Low Startup Current (<20μA)
● Current Mode Control
● Non-audible-noise Green Mode Control
● UVLO (Under Voltage Lockout)
● LEB (Leading-Edge Blanking) on CS Pin
● Adjustable OLP Delay Time.
● Internal Slope Compensation
● OVP (Over Voltage Protection) on Vcc Pin
● OLP (Over Load Protection)
● 500mA Driving Capability

APPLICATIONs
● Switching AC/DC Adaptor and Battery Charger
● Open Frame Switching Power Supply