SY20228 Datasheet | Silergy

Description SY20228 is a high efficiency high frequency synchronous step down DC/DC regulator capable of delivering up to 6A output current. It operates over a wide input voltage range from 2.75V to 6V. 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 ponent part count. Low input and output voltage ripple, small external inductor and capacitor sizes, small PCB layout space are achieved. Ordering Information - (- - )- Tempera ture Code Pa cka ge Code Optional Spec Code Ordering Number Package type Note SY20228DFC DFN2x2-8 -- Features - Low RDS(ON) for Internal Switches (Top/Bottom): 35/15 mΩ - 2.75-6V Input Voltage Range - 1.2 MHz Switching Frequency Minimizes the External ponents - Internal Soft-start Limits the Inrush Current - Up to 94% Efficiency - 6A Continuous Output Current Capability - Shutdown Mode Draws<0.1μA Supply Current - 100% Dropout Operation - Power Good Indicator - OCP/UVLO/OTP Protections - Ro HS pliant and Halogen Free - pact Package: DFN2x2-8 Applications - High Definition Set Top Box - LCD TV - Notebook PC Typical Applications RPG:100kΩ VIN:2.75~6.0V Ce + CIN: 22µF L: 0.47µH REN: 1MΩ RH: 100kΩ RL: 49.9kΩ Figure 1. Schematic Diagram VOUT:1.8V...