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