| Description | The SY21173 high-efficiency asynchronous Buck converter can deliver 3A output current over a wide input voltage range from 4.5V to 60V. The SY21173 employs a constant off-time and peakcurrent mode control strategy to achieve fast transient responses. It integrates a main switch with low RDS(ON) to minimize conduction loss. The adjustable switching frequency permits low output-voltage ripple and re... |
| Features |
● Low RDS(ON) for Internal N-Channel Power FET: 150mΩ ● 4.5V to 60V Input Voltage Range ● Up to 3A Output Current Capability ● Constant Off-Time and Peak-Current Mode Control ● Internal Soft-Start Limits the Inrush Current ● ±1% 0.8V Reference ● Adjustable Switching Frequency Range: 100kHz to 1MHz ● EN ON/OFF Control with Accurate Threshold ● Hiccu... |
| Datasheet |
 SY21173 Datasheet 1.26MB |
