MAX640C/D中文资料美信数据手册PDF规格书
MAX640C/D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：
MAX640C/D
- 功能描述：
直流/直流开关转换器 5V/3.3V/3V Adjustable High-Efficiency Low-IQ Step-Down DC-DC Converters
- 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 |
|---|---|---|---|---|---|---|---|
MAXIM |
02+ |
DIP8 |
300 |
原装 |
询价 | ||
MAXIM |
24+ |
DIP |
2250 |
100%全新原装公司现货供应!随时可发货 |
询价 | ||
MAXIM/美信 |
25+ |
DIP8 |
880000 |
明嘉莱只做原装正品现货 |
询价 | ||
Maxim |
25+ |
25000 |
原厂原包 深圳现货 主打品牌 假一赔百 可开票! |
询价 | |||
MAXIM/美信 |
23+ |
DIP |
50000 |
全新原装正品现货,支持订货 |
询价 | ||
MAX |
23+ |
原装正品 |
6500 |
绝对全新原装!现货!特价!请放心订购! |
询价 | ||
max |
24+ |
N/A |
6980 |
原装现货,可开13%税票 |
询价 | ||
MAXIM/美信 |
23+ |
DIP-8 |
89630 |
当天发货全新原装现货 |
询价 | ||
MAXIM/美信 |
2023+ |
DIP8 |
8635 |
一级代理优势现货,全新正品直营店 |
询价 | ||
max |
2023+ |
原厂封装 |
50000 |
原装现货 |
询价 |
