RT8074

® RT8074 4A, 2MHz, Synchronous Step-Down Converter General Description The RT8074 is a simple, easy-to-use current mode controlled 4A synchronous step-down DC-DC converter with an input supply voltage range from 2.7V to 5.5V.The device build-in an accurate 0.8V reference voltage and integrates low RDS(ON) power MOSFETs to achieve high efficiency in SOP-8 (Exposed Pad) package. The RT8074 operates in automatic PSM that maintains high efficiency during light load operation. The device features cycle-by-cycle current-limit protection to prevent the device from the catastrophic damage in output short circuit, over-current or inductor saturation. Built-in softstart function prevents inrush current during start-up. The device also features input under-voltage lockout, output under-voltage protection, and over-temperature protection to provide safe and smooth operation in all operating conditions. Ordering Information RT8074 Package Type SP : SOP-8 (Exposed Pad-Option 2) Lead Plating System G : Green (Halogen Free and Pb Free) Note : Richtek products are :  RoHS compliant and compatible with the current requirements of IPC/JEDEC J-STD-020.  Suitable for use in SnPb or Pb-free soldering processes. Features  Input Voltage Range from 2.7V to 5.5V  Integrated 110mΩ and 70mΩ FETs  100% Duty Cycle for Lowest Dropout  Power Saving Mode for Light Loads  Adjustable Frequency : 200kHz to 2MHz  0.8V Reference Allows Low Output Voltage  Enable Function  Internal Soft-Start  Input ...