SY8089 Datasheet | Silergy

Description The SY8089 and SY8089A are high-efficiency, high frequency synchronous step-down DC-DC regulator IC capable of delivering up to 2A output current. The SY8089 and SY8089A operate over a wide input voltage range from 2.7V to 5.5V and integrate 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 greater than 1MHz switching frequency. SY8089 integrates short circuit and over-voltage latch off protection. Ordering Information - (- - )- Temperature Code Package Code Optional Spec Code Temperature Range: -40°C to 85°C Ordering Number Package type Note SY8089AAC SOT23-5 SY8089AAAC SOT23-5 Features - Low RDS(ON) for internal switches (top/bottom):110mΩ/80mΩ - 2.7-5.5V input voltage range - 2A continuous, 3A peak load current capability - 1MHz switching frequency minimizes the external ponents - Internal softstart limits the inrush current - Reliable short circuit protection: SY8089: Latch off protection SY8089A: Hic-cup mode protection - Reliable over-voltage protection: SY8089: Latch off protection SY8089A: No latch off protection - 100% dropout operation - Ro HS pliant and Halogen Free - pact package: SOT23-5 Applications - LCD TV - Set Top Box - Net PC - Mini-Notebook PC - Access Point Router Typical Applications Efficiency (%) VIN: 2.7-5.5V 4 IN 3 L1:2.2µH LX VOUT: 1.8V ON/...