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          首頁 >MAX1774>規(guī)格書列表

          型號(hào)下載 訂購功能描述制造商 上傳企業(yè)LOGO

          MAX1774

          Dual, High-Efficiency, Step-Down Converter with Backup Battery Switchover

          General Description The MAX1774 is a complete power-supply solution for PDAs and other hand-held devices. It integrates two high-efficiency step-down converters, a boost converter for backup battery regulation, and four voltage detectors in a small 32-pin QFN or 28-pin QSOP package. Features ?

          文件:398.28 Kbytes 頁數(shù):21 Pages

          MAXIM

          美信

          MAX1774

          fully assembled and tested surface-mount circuit board Evaluation Kit

          文件:181.69 Kbytes 頁數(shù):6 Pages

          MAXIM

          美信

          MAX1774

          Dual, High-Efficiency, Step-Down

          文件:568.2 Kbytes 頁數(shù):21 Pages

          MAXIM

          美信

          MAX1774

          雙路、高效率、降壓型轉(zhuǎn)換器,帶有備用電池切換開關(guān)

          MAX1774是PDA和其他手持設(shè)備的完整電源解決方案。它在小型32引腳QFN或28引腳QSOP封裝中集成了兩個(gè)高效降壓型轉(zhuǎn)換器、一個(gè)用于備用電池調(diào)節(jié)的升壓轉(zhuǎn)換器以及四個(gè)電壓檢測(cè)器。\n\n MAX1774可接受+2.7V至+28V輸入,并在超過2A的電流下提供1.25V至5.5V的可調(diào)主輸出。副邊核心轉(zhuǎn)換器提供1V至5V的可調(diào)電壓,并可提供高達(dá)1.5A的電流。主穩(wěn)壓器和核心穩(wěn)壓器都有獨(dú)立的關(guān)斷輸入。\n\n 當(dāng)交流適配器電源被移除時(shí),外部P溝道MOSFET將輸入切換到主電池。當(dāng)主電池電量低時(shí),備用升壓型轉(zhuǎn)換器維持主輸出電壓。當(dāng)備用電池?zé)o法再提供所需負(fù)載時(shí),系統(tǒng)會(huì)安全關(guān)斷以 ? 雙通道、高效、同步整流降壓型轉(zhuǎn)換器\n\n? 薄型、小型(1mm高)QFN封裝\n\n? 備用電池的升壓型轉(zhuǎn)換器\n\n? 主電源\n? 可調(diào)范圍:+1.25V至+5.5V\n\n? 負(fù)載電流超過2A\n\n? 效率高達(dá)95%\n\n\n\n\n? 內(nèi)核電源\n? 可調(diào)范圍:1V至5V\n\n? 內(nèi)部開關(guān)\n\n? 負(fù)載電流高達(dá)1.5A\n\n? 效率高達(dá)91%\n\n\n\n\n? 自動(dòng)主電池切換\n\n? 占空比高達(dá)100%(最大值)\n\n? 開關(guān)頻率高達(dá)1.25MHz\n\n? 輸入電壓范圍:+2.7V至+28V\n\n? 四個(gè)低壓檢測(cè)器\n\n? 靜態(tài)電流;

          ADI

          亞德諾

          MAX1774EEI

          Dual, High-Efficiency, Step-Down Converter with Backup Battery Switchover

          General Description The MAX1774 is a complete power-supply solution for PDAs and other hand-held devices. It integrates two high-efficiency step-down converters, a boost converter for backup battery regulation, and four voltage detectors in a small 32-pin QFN or 28-pin QSOP package. Features ?

          文件:398.28 Kbytes 頁數(shù):21 Pages

          MAXIM

          美信

          MAX1774EMJ

          Dual, High-Efficiency, Step-Down Converter with Backup Battery Switchover

          General Description The MAX1774 is a complete power-supply solution for PDAs and other hand-held devices. It integrates two high-efficiency step-down converters, a boost converter for backup battery regulation, and four voltage detectors in a small 32-pin QFN or 28-pin QSOP package. Features ?

          文件:398.28 Kbytes 頁數(shù):21 Pages

          MAXIM

          美信

          MAX1774_V01

          Dual, High-Efficiency, Step-Down

          文件:568.2 Kbytes 頁數(shù):21 Pages

          MAXIM

          美信

          MAX1774EEI

          Dual, High-Efficiency, Step-Down

          文件:568.2 Kbytes 頁數(shù):21 Pages

          MAXIM

          美信

          MAX1774EGJ

          Dual, High-Efficiency, Step-Down

          文件:568.2 Kbytes 頁數(shù):21 Pages

          MAXIM

          美信

          MAX1774EVKIT

          fully assembled and tested surface-mount circuit board Evaluation Kit

          文件:181.69 Kbytes 頁數(shù):6 Pages

          MAXIM

          美信

          技術(shù)參數(shù)

          • VIN (max)(V):

            28

          • # Step-Down Outputs:

            2

          • # Step-Up Outputs:

            1

          • Battery Charger Features:

            Battery Backup

          • Primary Topology:

            Step-Down

          • Monitor/ Control Features:

            Shutdown

          • DC-DC/ Power Features:

            Current Limit

          • VOUT (min)(V):

            1

          • VOUT (max)(V):

            5.5

          • Max. IOUT(A):

            2

          • Switching Frequency(kHz):

            600

          • Output Adjust. Method:

            Preset

          • Preset VOUT(V):

            1.8

          • ICC (max)(mA):

            0.04

          • EV Kit Available:

            Yes

          • Package/ Pins:

            QSOP/28

          • Smallest Available Pckg. (max w/pins)(mm2):

            61.9

          • RoHS Available:

            Yes

          • Oper. Temp.(°C):

            -40 to +85

          • Budgetary Price (See Notes):

            $4.23 @1k

          供應(yīng)商型號(hào)品牌批號(hào)封裝庫存備注價(jià)格
          ADI
          25+
          28-QSOP-150_MIL
          5500
          雙路、高效率、降壓型轉(zhuǎn)換器,帶有備用電池切換開關(guān)
          詢價(jià)
          MAX
          24+
          SSOP28
          11
          詢價(jià)
          MAX
          0506+
          SOP
          1789
          全新原裝絕對(duì)自己公司現(xiàn)貨特價(jià)!
          詢價(jià)
          MAXIM
          25+
          QSOP28
          15000
          品牌一級(jí)代理,新加坡香港上百萬現(xiàn)貨,歡迎查詢!
          詢價(jià)
          MAXIM
          17+
          SSOP28
          6200
          100%原裝正品現(xiàn)貨
          詢價(jià)
          MAIXM
          23+
          SOP
          5000
          原裝正品,假一罰十
          詢價(jià)
          MAX
          2016+
          SSOP
          3000
          只做原裝,假一罰十,公司可開17%增值稅發(fā)票!
          詢價(jià)
          MAX
          25+
          SC70-5
          18000
          原廠直接發(fā)貨進(jìn)口原裝
          詢價(jià)
          MAX
          23+
          原裝正品
          3600
          絕對(duì)全新原裝!現(xiàn)貨!特價(jià)!請(qǐng)放心訂購!
          詢價(jià)
          MAXIM
          24+
          SOP
          4652
          公司原廠原裝現(xiàn)貨假一罰十!特價(jià)出售!強(qiáng)勢(shì)庫存!
          詢價(jià)
          更多MAX1774供應(yīng)商 更新時(shí)間2026-1-19 14:31:00
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