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RT9214 Datasheet(PDF) 1 Page - Richtek Technology Corporation |
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RT9214 Datasheet(HTML) 1 Page - Richtek Technology Corporation |
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1 / 17 page  1 RT9214 DS9214-13 September 2007 www.richtek.com Features Operating with 5V or 12V Supply Voltage Drives All Low Cost N-Channel MOSFETs Voltage Mode PWM Control 300kHz Fixed Frequency Oscillator Fast Transient Response : High-Speed GM Amplifier Full 0 to 100% Duty Ratio Internal Soft-Start Adaptive Non-Overlapping Gate Driver Over-Current Fault Monitor on MOSFET, No Current Sense Resistor Required RoHS Compliant and 100% Lead (Pb)-Free 5V/12V Synchronous Buck PWM DC-DC Controller General Description The RT9214 is a high efficiency synchronous buck PWM controllers that generate logic-supply voltages in PC based systems. These high performance , single output devices include internal soft-start, frequency compensation networks and integrates all of the control, output adjustment, monitoring and protection functions into a single package. The device operating at fixed 300kHz frequency provides an optimum compromise between efficiency, external component size, and cost. Adjustable over-current protection (OCP) monitors the voltage drop across the RDS(ON) of the lower MOSFET for synchronous buck PWM DC-DC controller. The over- current function cycles the soft-start in 4-times hiccup mode to provide fault protection, and in an always hiccup mode for under-voltage protection. Ordering Information Applications Graphic Card Motherboard, Desktop Servers IA Equipments Telecomm Equipments High Power DC-DC Regulators Pin Configurations (TOP VIEW) SOP-8 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. SOP-8 ( Exposed Pad) PHASE BOOT UGATE LGATE GND VCC OPS FB 2 3 4 5 8 7 6 Package Type S : SOP-8 SP : SOP-8 (Exposed Pad-Option 1) RT9214 Operating Temperature Range P : Pb Free with Commercial Standard G : Green (Halogen Free with Commer- cial Standard) PHASE BOOT UGATE LGATE GND VCC OPS FB 2 3 4 5 8 7 6 NC 9 |
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Similar Description - RT9214 |
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