OB2633 Datasheet PDF

On-Bright Electronics OB2633

OB2633 is a highly integrated Quasi- ■ Very wide range of supply voltage Resonant(QR) controller with adaptive multi-mode regulation, optimized for high performance, low EMI, low standby power consumption and wide output voltage range Quick Charger(QC) solutions, together with secondary -side controllers, such as OB200x and OB2603x supporting Qualcomm ■ Multi-Mode Operation 75KHz maximum clamping frequency in QR mode @ Full Load in high line voltage 55KHz minimum clamping frequency in CCM mode @ Heavy Load in low line voltage Quick Charge QC3.0 protocol. The controller is as Valley switching operation @ Green mode well compatible with cost effective offline flyback Burst Mode @ Light Load & No Load converter applications covering a wide output ■ Power on soft start reducing MOSFET Vds range. When the loading goes low, it operates in PFM mode with l valley switching for high power conversion efficiency.