PSR 40-50w 外置MOS 通嘉方案

LD5523E2

PSR  恒压 

Features  

PSR CCM+QR Multi-Mode Control. 

 Frequency Swapping for better EMI performance 

 Low Startup Current (<1.5A)  Built-in load regulation compensation 

 65 kHz PWM switching frequency. 

 Current mode control with cycle-by-cycle current limit  UVLO (Under Voltage Lock Out)  

LEB (Leading-Edge Blanking) on CS pin   VCC & FB Over Voltage Protection   

Bulk Over Voltage Protection (K2 only)  Adjustable Brown in/out on FB pin. 

External OTP (Over Temperature Protection) on CS Pin  Internal OTP (Over Temperature Protection)  Gate Source/Sink Capability: 40mA/-170mA @ output pin with 1nF capacitor.