General Description
The LD7530/LD7530A are specifically designed for the low
total system cost by integrating many functions, protections,
and the EMI-improved solution in a tiny SOT-26 package
which usually need a lot of extra components or circuits on
the general designs.
Furthermore, the LD7530/7530A features green mode
operation, leading edge blanking time, internal slope
compensation and adjustable over load protection (OLP)
delay time to minimize the component counts for switching
power supply.
And to satisfy different designs, 2 versions of OVP levels are
implemented as ---

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
Internal Slope Compensation
OVP (Over Voltage Protection) on Vcc Pin
OLP (Over Load Protection)
300mA Driving Capability
Adjustable OLP Delay Time

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