SY21043ABT
Description
The SY21043 high efficiency 500kHz synchronous buck converter operates over a wide input voltage range of 4.5V to 24V, and can deliver an output current up to 3A. It integrates a top MOSFET and a bottom MOSFET with very low RDS(ON) to minimize conduction loss.
Key Features
- Low RDS(ON) for Internal MOSFETs: 120mΩ Top, 60mΩ Bottom
- Wide Input Voltage Range: 4.5V ~ 24V
- Up to 3A Output Current
- ±1% 0.6V Reference Accuracy
- Precise EN Threshold
- PFM Light Load Operation for High Efficiency
- Internal Soft-Start Limits the Inrush Current
- Support Smooth Startup with Pre-Biased Output
- Constant On-Time and Ripple-Based Control to Achieve Fast Transient Responses
- Stable with 10µF COUT
