SY8493 Datasheet | Silergy

High Efficiency, 60V Input, 3A Asynchronous Step Down Regulator General Description The SY8493 develops a high efficiency, current mode adaptive constant off time controlled, asynchronous step-down DC/DC converter capable of delivering 3A output current. The SY8493 operates over a wide input voltage range from 4.5V to 60V and integrates main switch with very low RDS(ON) to minimize the conduction loss. The switching frequency is adjustable from 100k Hz to 500k Hz using an external resistor. And the device Features cycle-by-cycle peak current limitation. Ordering Information - (- - )- Tempera ture Code Pa cka ge Code Optional Spec Code Ordering Number Package type Note SY8493FCC SO8E -- Features - Low RDS(ON) for Internal N-channel Power FET(TOP):150mΩ - 4.5-60V Input Voltage Range - 3A Output Current Capability - Adjustable Switching Frequency Range: 100k Hz to 500k Hz - Internal Soft-start Limits the Inrush Current - Hic-cup Mode Output Short Circuit Protection - EN ON/OFF Control with Accurate Threshold - Cycle-by-cycle Peak Current Limit - 0.8V±1% Reference Voltage Accuracy - pact Package: SO8E Applications - Non-isolated Telemunication Buck Regulator - Secondary High Voltage Post Regulator - Automotive Systems - Electric Bicycle Typical Applications CIN...