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RT9232

PROGRAMMABLE SYNCHRONOUS PWM BUCK CONVERTER WITH 1.5V/2.5V DUAL LOW DROPOUT LINEAR REGULATOR CONTROLLER AND REFERENCE OUTPUT

GeneralDescription TheRT9232isasingle-phasesynchronousbuckPWMDC-DCconvertercontrollerdesignedtodrivetwoN-ChannelMOSFET.Itprovidesahighlyaccurate,programmableoutputvoltagepreciselyregulatedtolowvoltagerequirementwithaninternal0.8V±1reference.TheRT9232uses

RT9232

Programmable Frequency Synchronous Buck PWM Controller; Single IC Supply Voltage: 12V\nSingle phase DC/DC Buck Converter with\n? High Output Current (up to 25A )\n? Low Output Voltage (down to 0.8V )\n? High Input Voltage (up to 12V )\nOperate from 12V, 5V or 3.3V Input\n0.8V ± 1% Internal Reference\nAdaptive Non-Overlapping Gate Drivers\nIntegrated High-Current, HV Gate Drivers\nExternal Programmable Soft Start\nExternal Programmable Frequency (Range: 50kHz to 800kHz, 200kHz Free Run )\nIntegrated Output Short Circuit Protection\nOn/Off Control by Enable Pin\nDrives Two N-Channel MOSFET\nFull 0 to 100% Duty Cycle\nFast Transient Response\nVoltage Mode PWM Control with External Feedback Loop Compensation\nRoHS Compliant and 100% Lead (Pb)-FreeApplications\nSystem (Graphic, MB) with 12V Power.\nGraphic Cards (AGP 8X, 4X, PCI Express*16):\n?? High-Current for High-Performance Graphic Processors(GPU, VPU)\n?? Middle Current for High-Performance Graphic Memory Power (DDR, DDR II)\n?? Low Current with Sink Capacity for High-Performance Graphic Memory Power (DDR/VTT)\n3.3V to 12V Input DC-DC Regulators\nLow Voltage Distributed Power Supplies;

General Description\nThe RT9232 is a single-phase synchronous buck PWM DC-DC converter controller designed to drive two N-Channel MOSFET. It provides a highly accurate, programmable output voltage precisely regulated to low voltage requirement with an internal 0.8V ± 1% reference. The RT9232 uses an external compensated, single feedback loop voltage mode PWM control for fast transient response. An oscillator with Programmable frequency (50kHz to 800kHz) reduces the external inductor and capacitor component size for saving PCB board area.

RT9232

Programmable Frequency Synchronous Buck PWM Controller

RT9232A

Programmable Frequency Synchronous Buck PWM Controller

GeneralDescription TheRT9232Aisasingle-phasesynchronousbuckPWMDC-DCconvertercontrollerdesignedtodrivetwoN-ChannelMOSFET.Itprovidesahighlyaccurate,programmableoutputvoltagepreciselyregulatedtolowvoltagerequirementwithaninternal0.8V±1reference.TheRT9232Aus

RT9232A

頻率可編程同步 Buck PWM 控制器; ? 12V 工作電壓\n? 單相 DC/DC Buck 轉(zhuǎn)換器\n? 輸出電流高達(dá) 25A\n? 低達(dá) 0.8V 的輸出電壓\n? 輸入電壓可使用 12V、5V 或 3.3V 等\n? 0.8V&±1% 參考電壓\n? 自適應(yīng)無交疊柵極驅(qū)動器\n? 可調(diào)軟啟動\n? 工作頻率 50kHz~800kHz 可調(diào)，200kHz 自動運(yùn)行\(zhòng)n? 集成輸出短路保護(hù)\n? 可使能控制\n? 占空比 0~100%\n? 快速瞬態(tài)響應(yīng)\n? 電壓模式控制架構(gòu)，補(bǔ)償外部可調(diào)\n? 符合 RoHS 規(guī)范，完全無鉛\n;

RT9232A 是單相同步 Buck PWM 控制器，使用 0.8V±1% 內(nèi)部參考電壓，可輸出可編程的高精度電壓，滿足低壓系統(tǒng)的需求。它使用外補(bǔ)償?shù)膯位芈冯妷耗Ｊ?PWM 控制加國獲得快速的瞬態(tài)響應(yīng)特性，工作頻率為可調(diào)的 50kHz~800kHz，輸出能力可達(dá) 25A 以上，適合高性能圖像處理器、DDR 存儲器等使用，具有軟啟動、輸出使能、欠壓閉鎖等特性，使用小型的14引腳封裝 。

RT9232AGS

Programmable Frequency Synchronous Buck PWM Controller

GeneralDescription TheRT9232Aisasingle-phasesynchronousbuckPWMDC-DCconvertercontrollerdesignedtodrivetwoN-ChannelMOSFET.Itprovidesahighlyaccurate,programmableoutputvoltagepreciselyregulatedtolowvoltagerequirementwithaninternal0.8V±1reference.TheRT9232Aus

RT9232APS

Programmable Frequency Synchronous Buck PWM Controller

GeneralDescription TheRT9232Aisasingle-phasesynchronousbuckPWMDC-DCconvertercontrollerdesignedtodrivetwoN-ChannelMOSFET.Itprovidesahighlyaccurate,programmableoutputvoltagepreciselyregulatedtolowvoltagerequirementwithaninternal0.8V±1reference.TheRT9232Aus

RT9232B

Programmable Frequency Synchronous Buck PWM Controller

GeneralDescription TheRT9232Bisasingle-phasesynchronousbuckPWMDC-DCconvertercontrollerdesignedtodrivetwoN-MOSFETs.Itprovidesahighlyaccurate,programmableoutputvoltagepreciselyregulatedtolowvoltage requirementwithaninternal0.8V±1reference.TheRT9232Buses

RT9232B

Programmable Frequency Synchronous Buck PWM Controller; ?Single IC Supply Voltage : 12V\n?Single phase DC/DC Buck Converter with\n ?High Output Current (up to 25A) \n ?Low Output Voltage (down to 0.8V) \n ?High Input Voltage (up to 12V)\n?Operate from 12V, 5V or 3.3V Input\n?0.8V ± 1% Internal Reference\n?Adaptive Non-Overlapping Gate Drivers\n?Integrated High-Current, HV Gate Drivers\n?External Programmable Soft Start\n?External Programmable Frequency(Range : 50kHz to 800kHz, 200kHz Free Run)\n?Provide Over Current Protection by Sensing MOSFET RDS(ON)\n?On/Off Control by Enable Pin\n?Drives Two N-MOSFET\n?Full 0 to 100% Duty Cycle\n?Fast Transient Response\n?Voltage Mode PWM Control with External Feedback Loop Compensation\n?RoHS Compliant and 100% Lead (Pb)-Free\n;

The RT9232B is a single-phase synchronous buck PWM DC/DC converter controller designed to drive two N-MOSFETs. It provides a highly accurate, programmable output voltage precisely regulated to low voltage requirement with an internal 0.8V ± 1% reference. \n\n\n\nThe RT9232B uses an external compensated, single feedback loop voltage mode PWM control for fast transient response. An oscillator with Programmable frequency (50kHz to 800kHz) reduces the external inductor and capacitor component size for saving PCB board area. \n\n\n\nThe RT9232B provides fast transient response to satisfy high current output applications (up to 25A) while minimizing external components. It is suitable for high-performance graphic processors, DDR and VTT power. \n\n\n\nThe RT9232B integrates complete protect functions such as Soft Start, Output Enable, UVLO(under-voltage lockout) and OCP into a small 14-pin package.

RT9232BGS

Programmable Frequency Synchronous Buck PWM Controller

GeneralDescription TheRT9232Bisasingle-phasesynchronousbuckPWMDC-DCconvertercontrollerdesignedtodrivetwoN-MOSFETs.Itprovidesahighlyaccurate,programmableoutputvoltagepreciselyregulatedtolowvoltage requirementwithaninternal0.8V±1reference.TheRT9232Buses