RT88

AUTOMOTIVE BRIDGE RECTIFIERS

AUTOMOTIVEBRIDGERECTIFIERS MAXIMUMRATINGSANDELECTRICALCHARACTERISTICS Ratingsat25°Cambienttemperatureunlessotherwisespecified.Singlephase,halfwave,60Hz,resistiveorinductiveload.Forcapacitiveload,deratecurrentby20.

RT8800

General Purpose 2/3-Phase PWM Controller for High-Density Power Supply

GeneralDescription TheRT8800/Baregeneralpurposemulti-phasesynchronousbuckcontrollersdedicatingforhighdensitypowersupplyregulation.Thepartsimplement2,and3buckswitchingstagesoperatingininterleavedphasesetautomatically.Theoutputvoltageisregulatedandcontrolled

RT8800A

General Purpose 3-Phase PWM Controller for High-Density Power Supply

GeneralDescription TheRT8800Aisageneral-purposedmulti-phasesynchronousbuckcontrollerdedicatingforhighpowerdensityapplications.TheRT8800Aoperateswith2or3synchronousbuckswitchingstagesininterleavedphasesetautomatically.Themultiphasearchitectureprovideshighoutput

RT8800A

高功率密度通用型3相PWM控制器; •5V 供电\n•可进行自动相数选择的2/3相电源转换器\n•以外部参考电压调节的输出电压\n•精确的内核电压调整\n•使用 DCR 电流检测技术进行功率级热平衡\n•极低成本；无损时分电流检测技术\n•内部软启动\n•打嗝模式过流保护\n•过压保护\n•可调工作频率，每相典型频率为 300kHz\n•电源良好指示\n•16-引脚的 VQFN 封装\n•符合 RoHS 规范且完全无铅\n;

RT8800A是一通用型多相同步降压转换器，适合高功率密度应用，可在自动的错相设定中执行2或3同步降压转换阶段。此多相架构让供电应用在高输出电流中，可维持低功耗和输入、输出电容的低应力。输出电压透过PI接脚的外部参考电压精确调节，当配合DAC发生器RT9401A/B，即可提供Intel^® VRD10.x 或AMD^® K8标准输出电压。RT8800A采用创新的时分 DCR 电流检测技术实施电流平衡操作、降压调整和过流保护，并用检测电流的通用GM放大器消除偏移误差及GM间的线性不一致性。由于现代的主板普遍使用了低于毫奥姆级的电感，小的偏移和线性不一致性即可导致可观的相间电流不平衡，这让时分DCR技术更加重要，确保大规模量产中的电流平衡效果。RT8800A 的设计中还包含了多种其它特性，如过压保护、欠压保护和内部软起动等。其封装为 VQFN-16L 3x3。

RT8800AGQV

General Purpose 3-Phase PWM Controller for High-Density Power Supply

GeneralDescription TheRT8800Aisageneral-purposedmulti-phasesynchronousbuckcontrollerdedicatingforhighpowerdensityapplications.TheRT8800Aoperateswith2or3synchronousbuckswitchingstagesininterleavedphasesetautomatically.Themultiphasearchitectureprovideshighoutput

RT8800APQV

General Purpose 3-Phase PWM Controller for High-Density Power Supply

GeneralDescription TheRT8800Aisageneral-purposedmulti-phasesynchronousbuckcontrollerdedicatingforhighpowerdensityapplications.TheRT8800Aoperateswith2or3synchronousbuckswitchingstagesininterleavedphasesetautomatically.Themultiphasearchitectureprovideshighoutput

RT8800B

General Purpose 2/3-Phase PWM Controller for High-Density Power Supply; • 5V Power Supply Voltage\n• 2/3-Phase Power Conversion with Automatic Phase Selection (RT8800 : 2/3-Phase, RT8800B : 2-Phase)\n• Output Voltage Controlled by External Reference Voltage\n• Precise Core Voltage Regulation\n• Power Stage Thermal Balance by DCR Current Sensing\n• Extreme Low-Cost, Lossless Time Sharing Current Sensing\n• Internal Soft-start \n• Hiccup Mode Over-Current Protection\n• Over-Voltage Protection\n• Adjustable Operating Frequency and Typical at 300kHz Per Phase\n• Power Good indication\n• Small 16-Lead VQFN Package (For RT8800 only)\n• RoHS Compliant and 100% Lead (Pb)-Free\n;

The RT8800/B are general purpose multi-phase synchronous buck controllers dedicating for high density power supply regulation. The parts implement 2, and 3 buck switching stages operating in interleaved phase set automatically. The output voltage is regulated and controlled following the input voltage of FB pin. With such a single analog control, the RT8800/B provide a simple, flexible, wide-range and extreme cost-effective high-density voltage regulation solutions for various high-density power supply application. The RT8800/B multi-phase architecture provide high output current while maintaining low power dissipation on power devices and low stress on input and output capacitors. The high equivalent operating frequency also reduces the component dimension and the output voltage ripple in load transient. \n\n\n\nRT8800/B implement both voltage and current loops to achieve good regulation, response and power stage thermal balance. The RT8800/B apply the time sharing DCR current sensing technology newly as well; with such a topology, the RT8800/B extract the DCR of output inductor as sense component to deliver a more precise load line regulation and better thermal balance capability. Moreover, the parts monitor the output voltage for over-current and over-voltage protection; Soft-start and programmable under-voltage lockout are also provided to assure the safety of power system.

RT8800BGQV

General Purpose 2/3-Phase PWM Controller for High-Density Power Supply

GeneralDescription TheRT8800/Baregeneralpurposemulti-phasesynchronousbuckcontrollersdedicatingforhighdensitypowersupplyregulation.Thepartsimplement2,and3buckswitchingstagesoperatingininterleavedphasesetautomatically.Theoutputvoltageisregulatedandcontrolled

RT8800BGS

General Purpose 2/3-Phase PWM Controller for High-Density Power Supply

GeneralDescription TheRT8800/Baregeneralpurposemulti-phasesynchronousbuckcontrollersdedicatingforhighdensitypowersupplyregulation.Thepartsimplement2,and3buckswitchingstagesoperatingininterleavedphasesetautomatically.Theoutputvoltageisregulatedandcontrolled

RT8800BPQV

General Purpose 2/3-Phase PWM Controller for High-Density Power Supply

GeneralDescription TheRT8800/Baregeneralpurposemulti-phasesynchronousbuckcontrollersdedicatingforhighdensitypowersupplyregulation.Thepartsimplement2,and3buckswitchingstagesoperatingininterleavedphasesetautomatically.Theoutputvoltageisregulatedandcontrolled