使用 IRU3038 同步 PWM
控制器進(jìn)行終端電源應(yīng)用的典型應(yīng)用。 IRU3038 控制器旨在為 DDR 內(nèi)存和通用板載 DC-DC
轉(zhuǎn)換器等電壓跟蹤應(yīng)用提供低成本同步降壓
穩(wěn)壓器。現(xiàn)代
微處理器與DDR
存儲(chǔ)器相結(jié)合,需要高速帶寬數(shù)據(jù)總線,這需要特定的總線終止電壓。該電壓將受到嚴(yán)格調(diào)節(jié),以跟蹤芯片組電壓的一半,以獲得最佳性能
說明
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Typical Application Using IRU3038 Synchronous PWM Controller for Termination Power Supply Applications. The IRU3038 controller is designed to provide a low cost synchronous Buck regulator for voltage tracking applications such DDR memory and general purpose on-board DC to DC converter. Modern micro processors combined with DDR memory, need high-speed bandwidth data bus which requires a particular bus termination voltage. This voltage will be tightly regulated to track the half of chipset voltage for best performance