MAX639MJA中文資料美信數(shù)據(jù)手冊PDF規(guī)格書
MAX639MJA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：
MAX639MJA
- 功能描述：
直流/直流開關(guān)轉(zhuǎn)換器
- 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 | 價格 |
|---|---|---|---|---|---|---|---|
PHILIPS/飛利浦 |
23+ |
NA/ |
3000 |
優(yōu)勢代理渠道,原裝正品,可全系列訂貨開增值稅票 |
詢價 | ||
MAXIM/美信 |
24+ |
SMD |
860000 |
明嘉萊只做原裝正品現(xiàn)貨 |
詢價 | ||
PHI |
TO-23() |
68900 |
原包原標(biāo)簽100%進口原裝常備現(xiàn)貨! |
詢價 | |||
PHILIPS/MAX |
2023+ |
WL-CSP4 |
3485 |
全新原廠原裝產(chǎn)品、公司現(xiàn)貨銷售 |
詢價 | ||
MAXIM |
19+ |
DIP8 |
256800 |
原廠代理渠道,每一顆芯片都可追溯原廠； |
詢價 | ||
MAXIM |
22+ |
SMD |
8200 |
原裝現(xiàn)貨庫存.價格優(yōu)勢!! |
詢價 | ||
24+ |
1500 |
真實現(xiàn)貨庫存 |
詢價 | ||||
PHILIPS |
ROHS |
13352 |
一級代理 原裝正品假一罰十價格優(yōu)勢長期供貨 |
詢價 | |||
Maxim |
24+ |
開關(guān)控制器 |
2548 |
原裝現(xiàn)貨 |
詢價 | ||
PHILIPS/飛利浦 |
2021+ |
SMD |
100500 |
一級代理專營品牌!原裝正品,優(yōu)勢現(xiàn)貨,長期排單到貨 |
詢價 |
