SY20054
Description
The SY20054 is a high efficiency 2.2MHz synchronous step down DC/DC regulator capable of delivering up to 4A output current. It can operate over a wide input voltage range from 2.4V to 5.5V and integrates main switch and synchronous switch with very low RDS (ON) to minimize the conduction loss.
Key Features
- 2.4V to 5.5V Input Voltage Range
- Ultra-fast Load Transient Speed
- Low RDS(ON) for Internal Switches (Top/Bottom):35mΩ /25mΩ
- High Switching Frequency 2.2MHz Minimizes the External Components
- ±1% Feedback or Output Voltage Accuracy (Full Temperature Range)
- PFM Mode for Light Load Efficiency
- 16μA Operating Quiescent Current
- Internal Soft-start Limits the Inrush Current
- 100% Dropout Operation
- Output Auto Discharge Function
