RT8289

® RT8289 5A, 32V, 500kHz Step-Down Converter General Description The RT8289 is a step-down regulator with an internal Power MOSFET. It achieves 5A 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. The RT8289 provides protections such as cycle-by-cycle current limiting and thermal shutdown. In shutdown mode, the regulator draws 25μA of supply current. The RT8289 requires a minimum number of external components, to provide a compact solution. The RT8289 is available in a SOP-8 (Exposed Pad) package. Ordering Information RT8289 Package Type SP : SOP-8 (Exposed Pad-Option 1) Note : Lead Plating System G : Green (Halogen Free and Pb Free) Richtek products are :  RoHS compliant and compatible with the current require- ments of IPC/JEDEC J-STD-020.  Suitable for use in SnPb or Pb-free soldering processes. Marking Information RT8289 GSPYMDNN RT8289GSP : Product Number YMDNN : Date Code Features  High Output Current up to 5A  Internal Soft-Start  100mΩ Internal Power MOSFET Switch  Internal Compensation Minimizes External Parts Count  High Efficiency up to 90%  25μA Shutdown Current  Fixed 500kHz Frequency  Thermal Shutdown Protection  Cycle-by-Cycle Over Current Protection  Wide 5.5V to 32V Operating Input Range  Adjustable Output Voltage from 1.222V to 26V  Available in an SOP-8 (Exposed Pad) Package  RoHS Compliant and ...