SY20217 -


·         2.5V to 5.5V Input Voltage Range

·         Low RDS(ON) for Internal Switches (PFET/NFET): 70mΩ / 40mΩ

·         4A Continuous, 6A Peak Load Current Capability

·         +/-1% Output Voltage Accuracy at PWM Mode

·         PFM Mode at Light Load for High Efficiency

·         Selectable Fixed Output Voltage through VID0, VID1 pins

·         Support for Low Power Mode Logic Input

·         Typical 30µA Typical Quiescent Current

·         Ultra Fast Load Transient Performance

·         Flexible Mode Pull-down Resistor to Program the Required Power Rail

·         Power Good Indicator

·         OVP/SCP/OTP Latch off  Protection

·         RoHS Compliant and Halogen Free

·         Compact Package: QFN3x3-16

Typical Application


SY20217 is a high efficiency Buck converter with low power mode and output voltage select function. The output voltage can be changed by the VID0, VID1 and /LP  pins with dedicated setting slew rate. It therefore supports dynamic voltage scaling function target.

The SY20217 operates over a wide input voltage range from 2.5V to 5.5V. It is available in a QFN3x3-16 package.


·       NB application