High Efficiency Boost LDO Converter & High Power White LED Driver

General Description The RT9278 is a compact, high efficiency, synchronous step-up converter, it provides a power supply solution for products powered by either two-cell, three-cell Alkaline/NiMH or one-cell Li-Ion/Li-polymer battery. Features ? 95Efficiency Synchronous Boost Converter ? High S

文件：205.53 Kbytes 頁數(shù)：13 Pages

RICHTEK

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同步升壓型 DC/DC 轉(zhuǎn)換器 + 線性控制器

RT9278 是一款高效率的同步升壓轉(zhuǎn)換器，為采用2~3節(jié)堿性/鎳氫電池或單節(jié)鋰離子/聚合物電池的設備提供了一個很好的電源解決方案。它的 Boost 轉(zhuǎn)換器采用了 PWM 控制環(huán)路和同步整流器，可提供高達95%的效率，內(nèi)部開關的峰值電流限制是2A，在輸入電壓超過設定的輸出電壓時仍能將輸出電壓穩(wěn)定在設定值上。它的輸出電壓可由外部電阻分壓器進行設定，也可選擇恒定電壓的版本以減少外部元件。它集成了一個線性控制器以實現(xiàn)線性穩(wěn)壓。RT9278的封裝是 VDFN-10L 3x3。 ? 效率高達95%的同步升壓轉(zhuǎn)換器\n? 開關電流限制為 2A\n? 600kHz 恒定工作頻率\n? 可在輸入電壓超過輸出電壓設定值時保持輸出電壓穩(wěn)定\n? 使用外部補償網(wǎng)絡\n? 有過熱保護功能\n? 符合 RoHS 規(guī)范，100%無鉛封裝;

Richtek

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High Efficiency Boost LDO Converter & High Power White LED Driver

General Description The RT9278 is a compact, high efficiency, synchronous step-up converter, it provides a power supply solution for products powered by either two-cell, three-cell Alkaline/NiMH or one-cell Li-Ion/Li-polymer battery. Features ? 95Efficiency Synchronous Boost Converter ? High S

文件：205.53 Kbytes 頁數(shù)：13 Pages

RICHTEK

立锜科技

High Efficiency Boost LDO Converter & High Power White LED Driver

General Description The RT9278 is a compact, high efficiency, synchronous step-up converter, it provides a power supply solution for products powered by either two-cell, three-cell Alkaline/NiMH or one-cell Li-Ion/Li-polymer battery. Features ? 95Efficiency Synchronous Boost Converter ? High S

文件：205.53 Kbytes 頁數(shù)：13 Pages

RICHTEK

立锜科技

Package：10-VFDFN 裸露焊盤；包裝：管件 類別：集成電路（IC） LED 驅(qū)動器 描述：IC LED DRIVER RGLTR 2A 10VDFN

Richtek USA Inc.