RT9204A

Preliminary RT9204/A Dual Regulators - Standard Buck PWM DC-DC and Linear Controller General Description The RT9204/A is a dual power controllers designed for high performance graphics cards and computer applications. The IC integrates a standard buck controller, a linear regulator driver and protection functions into a small 8-pin package. The RT9204/A uses an internal compensated voltage mode PWM control for simple application design. An internal 0.8V reference allows the output voltage to be precisely regulated to low voltage requirement. A fixed 600kHz oscillator reduce the component size for saving board area. The RT9204/A protects the converter and regulator by monitoring the output under voltage. Features l l l l l l l l l Operate from 5V 0.8V Internal Reference Voltage Mode PWM Control Fast Transient Response Fixed 600kHz Oscillator Frequency Full 0 to 100% Duty Cycle Internal Soft Start Internal PWM Loop Compensation RoHS Compliant and 100% Lead (Pb)-Free Applications l l l l Ordering Information RT9204/A Package Type S : SOP-8 Operating Temperature Range P : Pb Free with Commercial Standard G : Green (Halogen Free with Commercial Standard) UVP : Hiccup Mode UVP : Latch Mode Note : RichTek Pb-free and Green 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. }100%matte tin (Sn) plating. l l l l l Motherboard Power Regulation for Computers Subsystems Power...