LD5523D2 Description
In order to enhance the efficiency performance, the LD5523D2 integrates the multi-mode PWM controller, which consists of Quasi-Resonant (QR) PWM control for light load condition and Continue Conduction Mode (CCM) for heavy load condition. Moreover, the QR controller gains the system performance, but also brings the worse EMI capability, especially at boundary mode in heavy load. While the frequency swapping function...
LD5523D2 Key Features
- PSR CCM+QR Multi-Mode Control
- Frequency Swapping for better EMI performance
- Low Startup Current (<1.5A)
- Built-in load regulation pensation
- 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
- Adjustable Brown in/out on FB pin