SY20216 Datasheet | Silergy

Description The SY20216 is a high efficiency 3MHz synchronous step down DC/DC regulator capable of delivering up to 4A output current. It operates over a wide input voltage range from 2.7V to 5.5V. It integrates main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss. High integrated solution and DFN2×2-8 package perform the optimized BOM cost and reduce external ponent count. Low input and output voltage ripple, small external inductor and capacitor sizes, small PCB layout space are achieved. Ordering Information SY20216- (- - )- Tempera ture Code Pa cka ge Code Optional Spec Code Ordering Number SY20216DFC Package type DFN2×2-8 Note -- Features - Low RDS(ON) for Internal Switches (Top/Bottom): 35/15 mΩ - 2.7-5.5V Input Voltage Range - 3MHz Switching Frequency Minimizes the External ponents - Internal Soft-start Limits the Inrush Current - Up to 92% Efficiency - 4A 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: DFN2×2-8 Applications - High definition Set Top Box - LCD TV - Notebook PC Typical Applications VIN:2.7~5.5V C1 CIN: 22µF REN: 1MΩ RPG:100kΩ L: 0.25u H RH: 100kΩ RL: 49.9kΩ Figure 1. Schematic Diagram VOUT:1.8V Cff: 22p F COUT: 22u F×2 Efficiency (%) 100 90 80 70 60 50...