MAX640C/D中文資料美信數(shù)據(jù)手冊PDF規(guī)格書
MAX640C/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：
MAX640C/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 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
|---|---|---|---|---|---|---|---|
MAXIM/美信 |
2022+ |
DIP8 |
3000 |
原廠代理 終端免費(fèi)提供樣品 |
詢價 | ||
MAX |
23+ |
3880 |
正品原裝貨價格低 |
詢價 | |||
Maxim |
22+ |
- |
9000 |
原廠渠道,現(xiàn)貨配單 |
詢價 | ||
MAXIMIC |
16+ |
NA |
8800 |
原裝現(xiàn)貨,貨真價優(yōu) |
詢價 | ||
MAXIM/美信 |
23+ |
DIP |
50000 |
全新原裝正品現(xiàn)貨,支持訂貨 |
詢價 | ||
MAXIM |
24+ |
DIP-8 |
16800 |
絕對原裝進(jìn)口現(xiàn)貨,假一賠十,價格優(yōu)勢!? |
詢價 | ||
MAXIM/美信 |
22+ |
DIP-8 |
12000 |
只做原裝、原廠優(yōu)勢渠道、假一賠十 |
詢價 | ||
MAXIM |
19+ |
DIP |
256800 |
原廠代理渠道,每一顆芯片都可追溯原廠； |
詢價 | ||
Maxim |
2016+ |
A/N |
6528 |
只做原廠原裝現(xiàn)貨!終端客戶個別型號可以免費(fèi)送樣品! |
詢價 | ||
主營MAXIM |
22+ |
DIP-8 |
8200 |
原裝現(xiàn)貨庫存.價格優(yōu)勢!! |
詢價 |
