600ma Step-down Converter

The AAT1106 Evaluation Board contains a fully tested 600mA, 1.5MHz Step-down DC/DC Regulator The cir- cuit has an input voltage range of 2.5V to 5.5V and four preset selectable outputs (1.2V, 1.5V, 1.8V and 2.5V). The device is capable of delivering up to 600mA of output current with a 3.0V VIN. The circuit CAN provide up to 96% efficiency and it consumes less than 1uA in shutdown mode. In light load mode operation there is very low output ripple voltage for noise sensitive applications. The AAT1106 comes in a small 5-pin TSOT23 pack- age and the board has been optimized to fit small form factor designs. An optional TVs SM6T6V8A is con- nected between VIN and GND so that the evaluation board CAN be used in a hot-plug application. These fea- tures, plus the nominal operating frequency of 1.5MHz allowing the use of low profile surface mount compo- nents, make the AAT1106 evaluation board an ideal circuit for use in battery-powered, hand-held applications.
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AAT1106 Evaluation Board Schematic.
AAT1106 Evaluation Board Schematic.

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