首頁>MAX1645EEI>規(guī)格書詳情
MAX1645EEI中文資料美信數(shù)據(jù)手冊PDF規(guī)格書
MAX1645EEI規(guī)格書詳情
General Description
The MAX1644 constant-off-time, PWM step-down DC-DC converter is ideal for use in applications such as PC cards, CPU daughter cards, and desktop computer bus-termination boards. The device features internal synchronous rectification for high efficiency and reduced component count. It requires no external Schottky diode. The internal 0.10Ω PMOS power switch and 0.10Ω NMOS synchronous-rectifier switch easily deliver continuous load currents up to 2A. The MAX1644 produces a preset +3.3V or +2.5V output voltage or an adjustable output from +1.1V to VIN. It achieves efficiencies as high as 95.
Features
? ±1 Output Accuracy
? 95 Efficiency
? Internal PMOS and NMOS Switches
70mΩ On-Resistance at VIN = +4.5V
100mΩ On-Resistance at VIN = +3V
? Output Voltage
+3.3V or +2.5V Pin-Selectable
+1.1V to VIN Adjustable
? +3V to +5.5V Input Voltage Range
? 360μA (max) Operating Supply Current
? < 1μA Shutdown Supply Current
? Programmable Constant-Off-Time Operation
? 350kHz (max) Switching Frequency
? Idle Mode Operation at Light Loads
? Thermal Shutdown
? Adjustable Soft-Start Inrush Current Limiting
? 100 Duty Cycle During Low-Dropout Operation
? Output Short-Circuit Protection
? 16-Pin SSOP Package
Applications
+5V to +3.3V/+2.5V Conversion
CPU I/O Supply
+3.3V PC Card and CardBus Applications
Notebook and Subnotebook Computers
Desktop Bus-Termination Boards
CPU Daughter Card Supply
產(chǎn)品屬性
- 型號(hào)：
MAX1645EEI
- 制造商：
Maxim Integrated Products
- 功能描述：
28 PIN COUNT QSOP PACKAGE TYPE - Bulk
| 供應(yīng)商 | 型號(hào) | 品牌 | 批號(hào) | 封裝 | 庫存 | 備注 | 價(jià)格 |
|---|---|---|---|---|---|---|---|
MAXIM |
SSOP |
68900 |
原包原標(biāo)簽100%進(jìn)口原裝常備現(xiàn)貨! |
詢價(jià) | |||
MAXIM |
19+ |
SSOP-28 |
256800 |
原廠代理渠道,每一顆芯片都可追溯原廠； |
詢價(jià) | ||
MAXIM |
SSOP-28 |
699839 |
集團(tuán)化配單-有更多數(shù)量-免費(fèi)送樣-原包裝正品現(xiàn)貨-正規(guī) |
詢價(jià) | |||
MAXIM |
23+ |
SSOP |
5000 |
原裝正品,假一罰十 |
詢價(jià) | ||
MAXIM |
24+ |
SSOP-28 |
494 |
詢價(jià) | |||
MAXIM/美信 |
24+ |
SSOP28 |
6000 |
原裝現(xiàn)貨假一賠十 |
詢價(jià) | ||
MAXIM/美信 |
22+ |
SSOP |
9600 |
原裝現(xiàn)貨,優(yōu)勢供應(yīng),支持實(shí)單! |
詢價(jià) | ||
MAX |
22+ |
SSOP-28 |
3000 |
原裝現(xiàn)貨庫存.價(jià)格優(yōu)勢 |
詢價(jià) | ||
Maxim Integrated |
22+ |
NA |
500000 |
萬三科技,秉承原裝,購芯無憂 |
詢價(jià) | ||
MAXIM/美信 |
2022+ |
SSOP28 |
30000 |
進(jìn)口原裝現(xiàn)貨供應(yīng),原裝 假一罰十 |
詢價(jià) |
