| 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 | MAXIM | |
MAX1774 | fully assembled and tested surface-mount circuit board Evaluation Kit 文件:181.69 Kbytes 頁數(shù):6 Pages | MAXIM 美信 | MAXIM | |
MAX1774 | Dual, High-Efficiency, Step-Down 文件:568.2 Kbytes 頁數(shù):21 Pages | MAXIM 美信 | MAXIM | |
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 | ADI | |
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 | MAXIM | ||
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 | MAXIM | ||
Dual, High-Efficiency, Step-Down 文件:568.2 Kbytes 頁數(shù):21 Pages | MAXIM 美信 | MAXIM | ||
Dual, High-Efficiency, Step-Down 文件:568.2 Kbytes 頁數(shù):21 Pages | MAXIM 美信 | MAXIM | ||
Dual, High-Efficiency, Step-Down 文件:568.2 Kbytes 頁數(shù):21 Pages | MAXIM 美信 | MAXIM | ||
fully assembled and tested surface-mount circuit board Evaluation Kit 文件:181.69 Kbytes 頁數(shù):6 Pages | MAXIM 美信 | MAXIM |
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) |
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