SY21061 Description
The SY21061 high-efficiency asynchronous Buck converter can deliver 1.2A output current over a wide input voltage range from 5V to 40V. The SY21061 employs a constant off-time and peak current mode control strategy to achieve fast transient responses. It integrates a main switch with low RDS(ON) to minimize conduction loss.
SY21061 Key Features
- Low RDS(ON) for Internal N-channel Power FET: 180mΩ
- 5V to 40V Input Voltage Range
- Up to 1.2A Output Current
- 800kHz Switching Frequency
- Constant Off-Time and Peak Current Mode Control
- Internal Soft-Start Limits Inrush Current
- ±2% 0.6V Reference
- Output Short Circuit Protection
- Cycle-by-Cycle Peak Current Limit
- Over Temperature Protection