PT1109 Datasheet (PowTech) - 380KHz Step-Down Converter

PT1109, 380KHz Step-Down Converter

The PT1109 is a monolithic step-down switch mode regulator with a built in internal power MOSFET.

It achieves 1.5A continuous output current over a wide input supply range with excellent load and line regulation.

Current mode operation provides fast transient response and eases loop stabilization.

PT1109 Features

* z 1.5A Output Current z 0.5Ω Internal Power MOSFET Switch z Stable with Low ESR Output Ceramic Capacitors z Up to 95% Efficiency z 23µA Shutdown Mode z Fixed 380KHz Frequency z Thermal Shutdown z Cycle-by-Cycle Over Current Protection z Wide 4.75V to 24V Operating Input Range z Output Adjustable fro