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RT9205APS Datasheet(PDF) 1 Page - Richtek Technology Corporation |
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RT9205APS Datasheet(HTML) 1 Page - Richtek Technology Corporation |
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1 / 15 page  RT9205/A Preliminary 1 DS9205/A-08 March 2007 www.richtek.com Features l Operates at 5V l 0.8V Internal Reference l Drives Two N-MOSFET l Voltage Mode PWM Control l Fast Transient Response l Fixed 300kHz Oscillator Frequency l Dynamic 0 to 100% Duty Cycle l Internal PWM Loop Compensation l Internal Soft-Start l Adaptive Non-Overlapping Gate Driver l Over-Voltage Protection Uses Lower MOSFET l RoHS Compliant and 100% Lead (Pb)-Free Pin Configurations Applications l PC Motherboard l Cable Modems, Set-Top-Box, and XDSL Modems l DSP and Core Communications Processor Supplies l Memory Power Supplies l Personal Computer Peripherals l Industrial Power Supplies l 5V Input DC-DC Regulators l Low Voltage Distributed Power Supplies l Graphic Cards Dual Regulators - Synchronous Buck PWM DC-DC and Linear Controller Ordering Information General Description The RT9205/A is a dual-output power controllers designed for high performance graphics cards and personal computers. The IC integrates a synchronous buck controller, a linear controller and protection functions into a small 14-pin package. The RT9205/A uses an internal compensated voltage mode PWM control for simplying design. An internal 0.8V reference allows the output voltage to be precisely regulated to meet low output voltage requirement. A fixed 300kHz oscillation frequency reduces the component size for saving board area. The RT9205/A also features over voltage protection (OVP) and under voltage lock-out (UVLO). (TOP VIEW) SOP-14 LGATE PGND GND VCC NC NC NC UGATE DRV FBL NC FB NC BOOT 2 3 4 11 12 13 14 5 6 7 8 9 10 Note : RichTek Pb-free and Green 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. }100%matte tin (Sn) plating. RT9205/A Package Type S : SOP-14 Operating Temperature Range P : Pb Free with Commercial Standard G : Green (Halogen Free with Commer- cial Standard) UVP : Hiccup Node UVP : Latch Mode |
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