RT7220E
Description
The RT7220E is a Synchronous Rectifier (SR) controller for Asymmetrical Half-Bridge (AHB) converters operating in Critical Conduction Mode (CRM), Cycle Skipping Mode (CSM), and Burst Mode (BM).
Key Features
- Suitable for Low-Side SR Control of AHB in CRM, CSM, and BM
- Suitable for 5V to 48V VOUT Range
- Double Pulses Function to Optimize Efficiency (Works with the AHB Controller RT7795)
- <1.2mA Operating Current in Normal Mode
- <160A Operating Current in Green Mode
- Built-In HV LDO to Supply SR Driver when VVDD is Lower than 4.5V
- Automatic Dead-Time Tracking Control to Optimize Efficiency
- SR Gate Driver with 8V Clamp
- SR Gate Initial Pull-Low before Start-Up
- SR Minimum On-Time
Applications
- Fast-Charger Power Adapters
