RT8288

® RT8288 3A, 21V 500kHz Synchronous Step-Down Converter General Description The RT8288 is a synchronous step-down regulator with an internal power MOSFET. It achieves 3A of 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. Fault condition protection includes cycle-by-cycle current limiting and thermal shutdown. An internal soft-start minimizes external parts count and internal compensation circuitry. The RT8288 requires a minimal number of readily available external components, providing a compact solution. Features z z z z 3A Output Current Internal Soft-Start 120mΩ/40mΩ Internal Power MOSFET Switch Internal Compensation Minimizes External Parts Count Fixed 500kHz Frequency Thermal Shutdown Protection Cycle-by-Cycle Over Current Protection Wide 4.5V to 21V Operating Input Range Adjustable Output from 0.808V to 15V Available in an SOP-8 (Exposed Pad) Package RoHS Compliant and Halogen Free z z z z z z z Ordering Information RT8288 Package Type SP : SOP-8 (Exposed Pad-Option 2) Lead Plating System Z : ECO (Ecological Element with Halogen Free and Pb free) Note : Richtek products are : ` Applications z z z z Distributive Power Systems Battery Charger DSL Modems Pre-Regulator for Linear Regulators http://www.DataSheet4U.net/ Pin Configurations (TOP VIEW) VIN SW SW BOOT 2 3 4 8 RoHS compliant and compatible with the current requirements o...