- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄372189 > SP6643 Single Alkaline Cell, High Efficiency Step-Up DC-DC Converter(單堿性電池，3.3V或可調(diào)電壓,高效步升DC-DC變換器) PDF資料下載
參數(shù)資料
| 型號： | SP6643 |
| 元件分類： | DC/DC變換器 |
| 英文描述： | Single Alkaline Cell, High Efficiency Step-Up DC-DC Converter(單堿性電池，3.3V或可調(diào)電壓,高效步升DC-DC變換器) |
| 中文描述： | 單節(jié)堿性，高效率步細胞型DC - DC轉(zhuǎn)換器（單堿性電池，3.3伏或可調(diào)電壓，高效步升的DC - DC變換器） |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 248K |
| 代理商： | SP6643 |
Rev. 10-6-00
SP6642/6643 High Efficiency Step-Up DC-DC Converter Copyright 2000 Sipex Corporation
1
I
20mA Output Current at 1.2V Input
I
+2V to +5.5V Output Range
I
0.85V Guaranteed Start-Up
I
83% High Efficiency
I
1.5
μ
A Quiescent Supply Current at V
BATT
I
Reverse Battery Protection
I
Internal Synchronous Rectifier
I
5nA Logic Controlled Shutdown Current
From V
For The SP6642
I
Low-Battery Detection Active LOW
Output For The
SP6643
I
Extremely Small
μ
SOIC Package
I
Pin-to-pin Compatible With MAX1642
And MAX1643
SP6642/6643
DESCRIPTION
The SP6642/6643 devices are high-efficiency, low-power step-up DC-DC converters for +1V
inputs ideal for single alkaline cell applications such as pagers, remote controls, and other
low-power portable end products. Designers can control the SP6642
device with a 1nA active
LOW shutdown input. The SP6643
features an active LOW output for low-battery conditions.
Both devices contain a 0.8
synchronous rectifier, an oscillator, a 0.6
N-channel MOSFET
power switch, an internal voltage reference, circuitry for pulse-frequency-modulation, and an
under voltage comparator. The output voltage for the SP6642/6643 devices is preset to
+3.3V + 4% or can be adjusted from +2V to +5.5V by manipulating two external resistors.
V
OUT
GND
PFI
V
BATT
LX
1
2
3
4
5
6
7
8
SP6642
PFO
SHDN
FB
V
OUT
GND
PFI
V
BATT
LX
1
2
3
4
5
6
7
8
SP6643
FB
BATTLO
PFO
Single Alkaline Cell, High Efficiency
Step-Up DC-DC Converter
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SP6644 | Evaluation Board Manual |
| SP6645UEB | Evaluation Board Manual |
| SP6644EB | Evaluation Board Manual |
| SP6644EU | Single/Dual Alkaline Cell, High Efficiency Step-Up DC-DC Converter |
| SP6645 | Single/Dual Alkaline Cell, High Efficiency Boost DC-DC Regulator |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SP6643EU | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Application Note:High Current Output |
| SP6644 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Single/Dual Alkaline Cell, High Efficiency Step-Up DC-DC Converter |
| SP6644_05 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Single/Dual Alkaline Cell, High Efficiency Boost DC-DC Regulator |
| SP6644EB | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Evaluation Board Manual |
| SP6644EU | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Single/Dual Alkaline Cell, High Efficiency Boost DC-DC Regulator |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。