SY21051FCC -
Features
· Low RDS(ON) for Internal Switches (Top/Bottom): 500mΩ/240mΩ
· 7-100V Input Voltage Range
· 1AOutput Current Capability
· Adjustable Switching Frequency
· Instant PWM Architecture to Achieve Fast Transient Responses.
· 2ms Internal Soft-start Limits the Inrush Current
· Precious +/-2% 1.2V Reference
· RoHS Compliant and Halogen Free
· Compact Package SO8E
Typical Application

Description
SY21051 develops high efficiency synchronous step-down DC/DC converter capable of delivering 1.0A current. The SY21051 operates over a wide input voltage range from 7V to 100V and integrate main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss.
Applications
· Non-Isolated Telecommunication Buck Regulator
· Secondary High Voltage Post Regulator
Automotive Systems