SY20018AAC -


·       Low RDS(ON) for Internal Switches (Top/Bottom) 260mΩ/170mΩ

·       2.5~5.5V Input Voltage Range

·       38μA Typical Quiescent Current @3.5Vin

48μA Typical Quiescent Current @5.5Vin

·       High Light Load Efficiency

·       High Switching Frequency 1.5MHz Minimizes the External Components

·       Internal Soft-start Limits the Inrush Current

·       100% Dropout Operation

·       RoHS Compliant and Halogen Free

· Compact Package: SOT23-5

Typical Application


SY20018 is a high efficiency 1.5MHz synchronous step down DC/DC regulator IC capable of delivering up to1Aoutput current. It can operate over a wide input voltage range from 2.5V to 5.5V and integrate main switch and synchronous switch with very low RDS (ON) to minimize the conduction loss.


·       Portable Navigation Device

·       Set Top Box

·       USB Dongle

·       Media Player

· Smart phone