MAX640MJA中文資料美信數(shù)據手冊PDF規(guī)格書
MAX640MJA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
產品屬性
- 型號：
MAX640MJA
- 功能描述：
直流/直流開關轉換器
- RoHS：
否
- 制造商：
STMicroelectronics
- 最大輸入電壓：
4.5 V
- 開關頻率：
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
- 安裝風格：
SMD/SMT
| 供應商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
|---|---|---|---|---|---|---|---|
4/UCSP |
23+ |
NA |
15659 |
振宏微專業(yè)只做正品,假一罰百! |
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 | ||
MAX |
22+ |
DIP8 |
8200 |
原裝現(xiàn)貨庫存.價格優(yōu)勢!! |
詢價 | ||
MAX |
24+ |
SMD |
22 |
本站現(xiàn)庫存 |
詢價 | ||
Analog Devices Inc/Maxim Integ |
23+/24+ |
4-WFBGABGA |
8600 |
只供原裝進口公司現(xiàn)貨+可訂貨 |
詢價 | ||
Maxim |
24+ |
4-UCSP |
7329 |
原裝現(xiàn)貨 |
詢價 | ||
MAX |
2023+ |
TSOP |
50000 |
原裝現(xiàn)貨 |
詢價 | ||
MAXIM |
23+ |
NA |
25060 |
只做進口原裝,終端工廠免費送樣 |
詢價 | ||
MAX |
24+ |
DIP8 |
2250 |
100%全新原裝公司現(xiàn)貨供應!隨時可發(fā)貨 |
詢價 |
