SY21219
Description
The SY21219 high efficiency 500kHz synchronous buck converter operates over a wide input voltage range of 4.5V to 30V, and can deliver an output current up to 6A. 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: 40mΩ Top, 20mΩ Bottom
- Wide Input Voltage Range: 4.5V ~ 30V
- Adjustable Output Voltage: 0.6V ~ 24V
- 6A Continuous Output Current Capability
- 500kHz Pseudo-Constant Frequency
- Precise EN Threshold
- Internal 1ms 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
- PFM Light Load Operation for High Efficiency
