SY20225ADFC -


·       Low RDS(ON) for Internal Switches (Top/Bottom): 35/15 mΩ

·       3-5.5V Input Voltage Range

·       1 MHz Switching Frequency Minimizes the External Components

·       Internal Soft-start Limits the Inrush Current

·       Up to 98% Efficiency

·       0.6V Reference Voltage

·       Shutdown Mode Draws<0.1µA Supply Current

·       100% Dropout Operation

·       Power Good Indicator

·       OVP/OCP/UVLO/OTP Protections

·       RoHS Compliant and Halogen Free

·       Compact Package: DFN2x2-8

Typical Application


The SY20225A is a high-efficiency 1 MHz synchronous step-down DC/DC regulator, current mode control IC capable of delivering up to 5A output current. The SY20225A operates over a wide input voltage range from 3V to 5.5V. It integrates main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss. High integrated solution and DFN2x2-8 package perform the optimized BOM cost and reduce external component part count. Low input and output voltage ripple, small external inductor and capacitor sizes, small PCB layout space are achieved with 1MHz switching frequency.


·       High definition Set Top Box

·       LCD TV

·       Access Point Router

·       Mini-notebook PC

·       Net PC