MAX639C/D中文資料美信數(shù)據(jù)手冊(cè)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(hào)：
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(hào) | 品牌 | 批號(hào) | 封裝 | 庫存 | 備注 | 價(jià)格 |
|---|---|---|---|---|---|---|---|
MAXIM/美信 |
21+ |
DIP8 |
5000 |
全新原裝現(xiàn)貨 價(jià)格優(yōu)勢(shì) |
詢價(jià) | ||
MAXIM/美信 |
24+ |
DIP |
150 |
原裝現(xiàn)貨假一賠十 |
詢價(jià) | ||
MAXIM |
DIP8 |
68900 |
原包原標(biāo)簽100%進(jìn)口原裝常備現(xiàn)貨! |
詢價(jià) | |||
MAXIM |
0032+ |
PDIP-8P |
50 |
普通 |
詢價(jià) | ||
MAXIM |
23+ |
DIP8 |
7750 |
全新原裝優(yōu)勢(shì) |
詢價(jià) | ||
MaximIntegrated |
23+ |
8-PDIP |
66800 |
原廠授權(quán)一級(jí)代理,專注汽車、醫(yī)療、工業(yè)、新能源！ |
詢價(jià) | ||
MAXIM/美信 |
22+ |
DIP |
9000 |
原裝正品 |
詢價(jià) | ||
Maxim |
22+ |
8PDIP |
9000 |
原廠渠道,現(xiàn)貨配單 |
詢價(jià) | ||
MAXIM |
22+ |
DIP-8 |
3000 |
原裝正品,支持實(shí)單 |
詢價(jià) | ||
MAXIM |
23+ |
DIP8 |
3000 |
全新原裝、誠(chéng)信經(jīng)營(yíng)、公司現(xiàn)貨銷售! |
詢價(jià) |
