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                                      SY21238 -

                                      Features

                                      ·       Input Range: 3.5-30V

                                      ·       850KHz Switching Frequency with Frequency Jittering

                                      ·       Minimum On Time: 100ns Typical

                                      ·       Minimum Off Time: 100ns Typical

                                      ·       Optional Input Overvoltage Protection

                                      ·       Low Rdson: 200m?

                                      ·       Rohs Compliant And Halogen Free

                                      ·       Compact Package: SOT23-6

                                      Typical Application

                                      Description

                                      SY21238 is a current mode control DC to DC regulator with accurate input average current limit. The device can be used in both Boost and Sepic applications. The high efficiency is achieved with low RDS(ON) internal switch. The frequency jittering feature improves the EMI performance.

                                      Applications

                                      ·       GPS Navigation Systems

                                      ·       Handheld Devices

                                      ·       Portable Media Player

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