高效率單相同步降壓型 PWM 控制器

RT8237C/D為提供高效率、優(yōu)越的瞬時(shí)回應(yīng)與高直流輸出穩(wěn)定度的降壓型PWM 控制器，適用于電池降壓供電予筆記本電腦內(nèi)部具有低壓電源需求的CPU核心、I/O與RAM芯片等應(yīng)用。PWM的固定導(dǎo)通時(shí)間架構(gòu)可允許較廣的輸入/輸出電壓比，并可在固定的切換頻率下提供100ns \"instant-on\" 的負(fù)載響應(yīng)特性。RT8237C/D 具備高效率并可不必裝設(shè)以往傳統(tǒng)PWM電流模式所必要的電流感測(cè)電阻以達(dá)到低電路設(shè)計(jì)成本的優(yōu)勢(shì)，并可藉由驅(qū)動(dòng)同步整流MOSFET并進(jìn)入二極管仿效模式以達(dá)到輕載狀態(tài)的高效率表現(xiàn)。其降壓轉(zhuǎn)換特性允許裝置電池達(dá)到最高效率的條件下進(jìn)行高低壓轉(zhuǎn)換?？赡J(rèn)的頻率選擇功能可降低應(yīng)用 ? 寬輸入電壓范圍: 4.5V 至 26V\n? 內(nèi)建0.5% 0.7V 參考電壓\n? 可藉由低端RDS(ON)感測(cè)程序設(shè)計(jì)的4700ppm/°C 電流限制設(shè)計(jì)\n? 緩啟動(dòng)控制\n? 整合的自舉開關(guān)\n? 過熱關(guān)機(jī)\n? 符合RoHS規(guī)范與無鹵特性;

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High Efficiency Single Synchronous Buck PWM Controller

General Description The RT8237E PWM controller provides high efficiency, excellent transient response, and high DC output accuracy needed for stepping down high voltage batteries to generate low voltage CPU core, I/O, and chipset RAM supplies in notebook computers. The constant on-time PWM c

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High Efficiency Single Synchronous Buck PWM Controller

General Description The RT8237E PWM controller provides high efficiency, excellent transient response, and high DC output accuracy needed for stepping down high voltage batteries to generate low voltage CPU core, I/O, and chipset RAM supplies in notebook computers. The constant on-time PWM c

文件：225.43 Kbytes 頁數(shù)：18 Pages

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High Efficiency Single Synchronous Buck PWM Controller

General Description The RT8237L PWM controller provides high efficiency, excellent transient response, and high DC output accuracy needed for stepping down high voltage batteries to generate low voltage CPU core, I/O, and chipset RAM supplies in notebook computers. The constant on-time PWM c

文件：809.56 Kbytes 頁數(shù)：23 Pages

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