MAX640MJA中文资料美信数据手册PDF规格书
MAX640MJA规格书详情
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.
特性 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
产品属性
- 型号：
MAX640MJA
- 功能描述：
直流/直流开关转换器
- RoHS：
否
- 制造商：
STMicroelectronics
- 最大输入电压：
4.5 V
- 开关频率：
1.5 MHz
- 输出电压：
4.6 V
- 输出电流：
250 mA
- 输出端数量：
2
- 最大工作温度：
+ 85 C
- 安装风格：
SMD/SMT
| 供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
|---|---|---|---|---|---|---|---|
MAX |
22+ |
DIP8 |
8200 |
原装现货库存.价格优势!! |
询价 | ||
MAX |
25+ |
4-UCSP(1.05x1.05) |
3210 |
公司现货绝对原装 |
询价 | ||
ADI(亚德诺) |
25+ |
4-UCSP(1.05x1.05) |
20948 |
样件支持,可原厂排单订货! |
询价 | ||
MAX |
2023+ |
TSOP |
50000 |
原装现货 |
询价 | ||
ADI(亚德诺) |
25+ |
4-UCSP(1.05x1.05) |
21000 |
正规渠道,免费送样。支持账期,BOM一站式配齐 |
询价 | ||
4/UCSP |
23+ |
NA |
15659 |
振宏微专业只做正品,假一罚百! |
询价 | ||
MAX |
24+ |
SMD |
22 |
本站现库存 |
询价 |
