SY20334 Datasheet | Silergy

Description The SY20334 is a dual-output, high-efficiency 1.5MHz synchronous step-down DC-DC IC capable of delivering up to 3A output current per output respectively. The SY20334 operates over a wide input voltage range from 2.7V to 5.5V and integrates main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss. Low output voltage ripple and small external inductor and capacitor sizes are achieved with 1.5MHz switching frequency. Ordering Information SY20334- (- - )- Tempera ture Code Pa cka ge Code Optional Spec Code Features - Low RDS(ON) for internal switches (top/bottom): 105/85mΩ - 2.7-5.5V input voltage range - 1.5MHz switching frequency minimizes the external ponents - Internal soft-start limits the inrush current - 100% dropout operation - Ro HS pliant and Halogen Free - pact and thermally enhanced package: DFN3x3-12 Applications - Wi Fi Card - LCD TV - GPS - Access Point Router - Smart Phone Ordering Number Package type Note SY20334DCC DFN3x3-12 3A Typical Applications VOUT1 COUT1 CIN1 CIN2 L1 R1 C3(opt.) R2 EN Control IN1 LX1 FB1 EN1 EN2 IN2 L2 LX2 C4(opt.) R3 FB2 R4 VOUT2 COUT2 Figure 1. Schematic diagram Efficiency...