SY21249F Overview
Description
The SY21249F is a high efficiency synchronous buck converter capable of delivering up to 11A current. It integrates low RDS(ON) top and bottom MOSFETs to minimize the conduction loss.
Key Features
- Low RDS(ON) for Internal MOFETs: 17mΩ Top, 7.5mΩ Bottom
- Wide Input Voltage Range: 5.5V ~ 24V
- Adjustable Output Voltage: 1V ~ 12V
- High Duty Cycle Capable using On-Time Stretch
- 11A Continuous Output Current Capability
- 100mA LDO Current Capability
- 600kHz Pseudo-Constant Frequency
- ±1% Internal Reference Voltage (VREF)
- Internal 0.8ms Soft-Start Limits the Inrush Current
- Constant On-Time and Ripple-Based Control to Achieve Fast Transient Responses
