SY8366H

Application Notes: SY8366H High Efficiency Fast Response 6A Continuous, 12A Peak, 28V Input Synchronous Step Down Regulator General Description The SY8366H develops a high efficiency synchronous step-down DC-DC regulator capable of delivering 6A continuous, 12A peak current. The SY8366H operates over a wide input voltage range from 4V to 28V and integrates main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss. The SY8366H adopts the instant PWM architecture to achieve fast transient responses for high step down applications and high efficiency at light loads. In addition, it operates at pseudo-constant frequency of 800kHz under continuous conduction mode to minimize the size of inductor and capacitor. Ordering Information SY8366□(□ □)□ Temperature Code Packa ge Code Optiona l Spec Code Ordering Number Package type Note SY8366HQQC QFN3x3-12 -- Typical Applications Features Low RDS(ON) for internal switches (top/bottom): 40/20 mΩ Wide input voltage range: 4-28V Instant PWM architecture to achieve fast transient responses Internal 600us softstart limits the inrush current Pseudo-constant frequency: 800kHz. 6A continuous/12A peak output current capability ±1.5% 0.6V reference Programmable peak current limit Power good indicator Output discharge function Hic-cup mode output short circuit protection Input UVLO Over temperature protection RoHS Compliant and Halogen Free Compact package: QFN3x3-12 Applications...