| 型號(hào) | 下載 訂購(gòu) | 功能描述 | 制造商 上傳企業(yè) | LOGO |
|---|---|---|---|---|
MAX1687 | Step-Up DC-DC Converters with Precise, Adaptive Current Limit for GSM 文件:235.27 Kbytes 頁(yè)數(shù):12 Pages | MAXIM 美信 | MAXIM | |
MAX1687 | 升壓型DC-DC轉(zhuǎn)換器,提供精密的自適應(yīng)限流,用于GSM MAX1687/MAX1688升壓型DC-DC轉(zhuǎn)換器可從單節(jié)鋰離子電池或三節(jié)鎳氫電池提供高達(dá)2W的功率。這些器件非常適合GSM手機(jī)和無(wú)線LAN等突發(fā)負(fù)載應(yīng)用,在這些應(yīng)用中,RF功率放大器需要短時(shí)高電流突發(fā)脈沖。MAX1687/MAX1688通過(guò)對(duì)儲(chǔ)能電容緩慢充電來(lái)降低電池浪涌電流,從而為負(fù)載電流突發(fā)脈沖提供必要的峰值能量。因此,峰值電池電流受到限制,從而充分延長(zhǎng)了電池使用時(shí)間并減少了電池電壓驟降和瞬態(tài)驟降。\n\n 內(nèi)部同步整流器提供超過(guò)90%的轉(zhuǎn)換效率,不再需要外部肖特基二極管。邏輯關(guān)斷模式可將關(guān)斷電流降為低至3μA。這些器件可在電流突發(fā)(RF傳輸模式)期間禁用,以消除開(kāi)關(guān) ? 450mA低峰值電池電流提供2A、5V GSM突發(fā)模式\n\n? 90%效率\n\n? 內(nèi)部功率MOSFET和電流檢測(cè)電阻\n\n? 關(guān)斷期間輸出與輸入斷開(kāi)\n\n? 關(guān)斷電流:3μA\n\n? 精確的電壓控制限流(MAX1687)\n\n? 自適應(yīng)恒定充電時(shí)間功能(MAX1688)\n\n? 可調(diào)輸出范圍:1.25V至6V\n\n? 輸入范圍:2.7V至6V(1節(jié)鋰離子電池或3節(jié)鎳氫電池)\n\n? 開(kāi)關(guān)頻率可超過(guò)1MHz\n\n? 待機(jī)模式在傳輸突發(fā)脈沖期間禁用DC-DC\n\n? 啟動(dòng)時(shí)具有低沖擊電流; | ADI 亞德諾 | ADI | |
Step-Up DC-DC Converters with Precise, Adaptive Current Limit for GSM General Description The MAX1686 provides power for dual-voltage subscriber ID module (SIM) cards in portable applications such as GSM cellular phones. Designed to reside in the portable unit (cellular phone handset), the 1MHz charge pump converts a 2.7V to 4.2V input to regulated 5V output. The M 文件:210.82 Kbytes 頁(yè)數(shù):12 Pages | MAXIM 美信 | MAXIM | ||
Step-Up DC-DC Converters with Precise, Adaptive Current Limit for GSM General Description The MAX1686 provides power for dual-voltage subscriber ID module (SIM) cards in portable applications such as GSM cellular phones. Designed to reside in the portable unit (cellular phone handset), the 1MHz charge pump converts a 2.7V to 4.2V input to regulated 5V output. The M 文件:210.82 Kbytes 頁(yè)數(shù):12 Pages | MAXIM 美信 | MAXIM | ||
Step-Up DC-DC Converters with Precise, Adaptive Current Limit for GSM 文件:235.27 Kbytes 頁(yè)數(shù):12 Pages | MAXIM 美信 | MAXIM | ||
Step-Up DC-DC Converters with Precise, Adaptive Current Limit for GSM 文件:235.27 Kbytes 頁(yè)數(shù):12 Pages | MAXIM 美信 | MAXIM | ||
2.7V to 6V Input Voltage Range 文件:114.8 Kbytes 頁(yè)數(shù):4 Pages | MAXIM 美信 | MAXIM | ||
Package:8-SOIC(0.154",3.90mm 寬);包裝:卷帶(TR) 功能:升壓 類別:集成電路(IC) 穩(wěn)壓器 - DC-DC 開(kāi)關(guān)穩(wěn)壓器 描述:IC REG BOOST ADJ 730MA 8SOIC | AD 亞德諾 | AD | ||
包裝:卷帶(TR) 功能:- 類別:集成電路(IC) 穩(wěn)壓器 - DC-DC 開(kāi)關(guān)穩(wěn)壓器 描述:IC REG BOOST ADJ 730MA 8SOIC | AD 亞德諾 | AD | ||
包裝:卷帶(TR) 功能:- 類別:集成電路(IC) DC DC 開(kāi)關(guān)穩(wěn)壓器 描述:IC REG BOOST ADJ 730MA 8SOIC | AD 亞德諾 | AD |
技術(shù)參數(shù)
- VIN (max)(V):
6
- VOUT1 (min)(V):
1.25
- VOUT1 (max)(V):
6
- IOUT1 (max)(A):
2.5
- Switch Type:
Internal
- Output Adjust. Method:
Resistor
- Synchronous Switching:
Yes
- ICC (typ)(mA):
2
- ICC (max)(mA):
4
- Shutdown Mode Supply Current (typ)(μA):
3
- # DC-DC Outputs:
1
- Switching Frequency(kHz):
500
- Features:
Adjustable Freq.
- EV Kit Available:
Yes
- Oper. Temp.(°C):
-40 to +85
- Package/ Pins:
SOIC (N)/8
- Smallest Available Pckg. (max w/pins)(mm2):
31
- RoHS Available:
Yes
- Budgetary Price (See Notes):
$2.60 @1k
| 供應(yīng)商 | 型號(hào) | 品牌 | 批號(hào) | 封裝 | 庫(kù)存 | 備注 | 價(jià)格 |
|---|---|---|---|---|---|---|---|
ADI |
25+ |
Small-Outline IC, Narrow (0.15 |
5500 |
升壓型DC-DC轉(zhuǎn)換器,提供精密的自適應(yīng)限流,用于GSM |
詢價(jià) | ||
MAXIM |
23+ |
原裝正品 |
5700 |
絕對(duì)全新原裝!現(xiàn)貨!特價(jià)!請(qǐng)放心訂購(gòu)! |
詢價(jià) | ||
MAXIM |
2015+ |
SOP/DIP |
19889 |
一級(jí)代理原裝現(xiàn)貨,特價(jià)熱賣! |
詢價(jià) | ||
MAX |
05+ |
原廠原裝 |
40051 |
只做全新原裝真實(shí)現(xiàn)貨供應(yīng) |
詢價(jià) | ||
MAXIM |
24+ |
SSOP |
7 |
詢價(jià) | |||
MAXIM |
24+ |
TSSOP16 |
1000 |
原裝正品現(xiàn)貨 |
詢價(jià) | ||
MAXIM |
2016+ |
TSSOP16 |
3900 |
只做原裝,假一罰十,公司可開(kāi)17%增值稅發(fā)票! |
詢價(jià) | ||
MAXIM |
16+ |
SOP |
8000 |
原裝現(xiàn)貨請(qǐng)來(lái)電咨詢 |
詢價(jià) | ||
max |
24+ |
N/A |
6980 |
原裝現(xiàn)貨,可開(kāi)13%稅票 |
詢價(jià) | ||
MAXIM |
25+ |
TSSOP16 |
1000 |
百分百原裝正品 真實(shí)公司現(xiàn)貨庫(kù)存 本公司只做原裝 可 |
詢價(jià) |
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