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                  Home > Step Down Switching Regulators
                  UD18209 Datasheet






                  The UTC UD18209 is a monolithic synchronous buck
                  regulator with built-in main switch and synchronous switch power
                  MOSFETs. It operates over a wide input voltage range from 4.5V
                  to 17V and achieves 2A continuous output current.
                  It adopts PWM architecture to achieve fast transient response
                  and always operates under continuous condition mode. It
                  operates at pseudo-constant frequency of 580kHz under heavy
                  load conditions. Internal soft-start minimizes the inrush supply
                  current at initial startup.


                  * 4.5V~17V Input Voltage Range
                  * Up to 2A Output Current
                  * 130/100m? Internal Power MOSFET Switch
                  * PWM Architecture to Achieve Fast Transient Response
                  * Build-in soft start function
                  * 580kHz Switching Frequency
                  * Thermal Shutdown Protection

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