MAX639C/D中文資料美信數(shù)據(jù)手冊PDF規(guī)格書
MAX639C/D規(guī)格書詳情
General Description
The MAX639/MAX640/MAX653 step-down switching regulators provide high efficiency over a wide range of load currents, delivering up to 225mA. A current-limiting pulse-frequency-modulated (PFM) control scheme gives the devices the benefits of pulse-width-modulated (PWM) converters (high efficiency at heavy loads), while using only 10μA of supply current (vs. 2mA to 10mA for PWM converters). The result is high efficiency over a wide range of loads.
Features
? High Efficiency for a Wide Range of Load Currents
? 10μA Quiescent Current
? Output Currents Up to 225mA
? Preset or Adjustable Output Voltage:
??? 5.0V (MAX639)
??? 3.3V (MAX640)
??? 3.0V (MAX653)
? Low-Battery Detection Comparator
? Current-Limiting PFM Control Scheme
Applications
??? 9V Battery to 5V, 3.3V, or 3V Conversion
??? High-Efficiency Linear Regulator Replacement
??? Portable Instruments and Handy-Terminals
??? 5V-to-3.3V Converters
產(chǎn)品屬性
- 型號：
MAX639C/D
- 功能描述：
直流/直流開關(guān)轉(zhuǎn)換器 5V/3.3V/3V Adjustable High-Efficiency Low-IQ Step-Down DC-DC Converters
- RoHS：
否
- 制造商：
STMicroelectronics
- 最大輸入電壓：
4.5 V
- 開關(guān)頻率：
1.5 MHz
- 輸出電壓：
4.6 V
- 輸出電流：
250 mA
- 輸出端數(shù)量：
2
- 最大工作溫度：
+ 85 C
- 安裝風(fēng)格：
SMD/SMT
| 供應(yīng)商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價(jià)格 |
|---|---|---|---|---|---|---|---|
MAXIM |
21+ |
DIP8 |
1356 |
絕對有現(xiàn)貨,不止網(wǎng)上數(shù)量!原裝正品,假一賠十! |
詢價(jià) | ||
MAXIM/美信 |
22+ |
DIP8 |
6000 |
進(jìn)口原裝 假一罰十 現(xiàn)貨 |
詢價(jià) | ||
MAXIM |
23+ |
原裝正品 |
6500 |
絕對全新原裝!現(xiàn)貨!特價(jià)!請放心訂購! |
詢價(jià) | ||
MAXIM |
23+ |
NA |
25060 |
只做進(jìn)口原裝,終端工廠免費(fèi)送樣 |
詢價(jià) | ||
MAXIM |
2015+ |
SOP/DIP |
19889 |
一級代理原裝現(xiàn)貨,特價(jià)熱賣! |
詢價(jià) | ||
MAXIM |
23+ |
DIP8 |
3000 |
全新原裝、誠信經(jīng)營、公司現(xiàn)貨銷售! |
詢價(jià) | ||
MAXIM |
2016+ |
DIP8 |
2585 |
只做進(jìn)口原裝現(xiàn)貨!或者訂貨,假一賠十! |
詢價(jià) | ||
MAXIM |
24+ |
12 |
原裝現(xiàn)貨,可開13%稅票 |
詢價(jià) | |||
MAXIM/美信 |
DIP8 |
1790 |
專營CDIP直插 |
詢價(jià) | |||
MAXIM |
22+ |
DIP-8 |
3000 |
原裝正品,支持實(shí)單 |
詢價(jià) |
