RT8267

RT8267 2A, 22V, 400kHz Step-Down Converter General Description The RT8267 is an asynchronous high voltage buck converter that can support the input voltage range from 4.75V to 22V and the output current can be up to 2A. Current Mode operation provides fast transient response and eases loop stabilization. The chip provides protection functions such as cycle-bycycle current limiting and thermal shutdown protection. In shutdown mode, the regulator draws 25μA of supply current. The RT8267 is available in a SOP-8 surface mount package. Features z z z z z z z z z z z Wide Operating Input Range : 4.75V to 22V Adjustable Output Voltage Range : 1.222V to 16V Output Current up to 2A 25μA Low Shutdown Current Power MOSFET : 0.18Ω High Efficiency up to 95% 400kHz Fixed Switching Frequency Stable with Low ESR Output Ceramic Capacitors Thermal Shutdown Protection Cycle-By-Cycle Over Current Protection RoHS Compliant and Halogen Free Ordering Information RT8267 Package Type S : SOP-8 Lead Plating System G : Green (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 Pin Configurations http://www.DataSheet4U.net/ RoHS compliant and compatible with the current requirements of IPC/JEDEC J-STD-020. BOOT VIN SW GND (TOP VIEW) 8 2 3 4 7 6 5 NC EN COMP FB ` Suitable for use in SnPb or Pb-free soldering processes. SOP-8 Typical Application Circuit VIN 4.75V to 22V 2 CIN 1...