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SP7648EU PDF预览

SP7648EU

更新时间: 2024-11-22 21:53:19
品牌 Logo 应用领域
西伯斯 - SIPEX 稳压器开关光电二极管
页数 文件大小 规格书
12页 236K
描述
Low Reference High Efficiency Boost Regulator

SP7648EU 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
包装说明:MO-187BA, MSOP-10Reach Compliance Code:unknown
风险等级:5.81Is Samacsys:N
其他特性:PFM MODE ALSO AVAILABLE模拟集成电路 - 其他类型:SWITCHING REGULATOR
控制模式:VOLTAGE-MODE控制技术:PULSE WIDTH MODULATION
最大输入电压:4.5 V最小输入电压:2.7 V
标称输入电压:3.6 VJESD-30 代码:S-PDSO-G10
长度:3 mm湿度敏感等级:1
功能数量:1端子数量:10
最高工作温度:85 °C最低工作温度:-40 °C
最大输出电流:2 A封装主体材料:PLASTIC/EPOXY
封装代码:TSSOP封装形状:SQUARE
封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH认证状态:Not Qualified
座面最大高度:1.1 mm表面贴装:YES
切换器配置:BOOST温度等级:INDUSTRIAL
端子形式:GULL WING端子节距:0.5 mm
端子位置:DUAL宽度:3 mm
Base Number Matches:1

SP7648EU 数据手册

 浏览型号SP7648EU的Datasheet PDF文件第2页浏览型号SP7648EU的Datasheet PDF文件第3页浏览型号SP7648EU的Datasheet PDF文件第4页浏览型号SP7648EU的Datasheet PDF文件第5页浏览型号SP7648EU的Datasheet PDF文件第6页浏览型号SP7648EU的Datasheet PDF文件第7页 
®
Preliminary  
SP7648  
Low Reference High Efficiency Boost Regulator  
FEATURES  
True Shutdown  
V
10  
9
V
OUT  
1
2
3
4
5
BATT  
FLASH  
LX  
SP7648  
700mA Output Current at 3.3V Input; 4.2V  
8
NC (Test)  
P
GND  
10 Pin DFN  
output  
R
7
GND  
LIM  
92% Efficiency from 2.7VIN to 3.3VOUT  
Wide Input Voltage Range: 2.7V to 4.5V  
5V Fixed or Adjustable Output  
0.3Switch  
SHDN  
6
FB  
Now Available in Lead Free Packaging  
Integrated Synchronous Rectifier:0.3Ω  
Anti-Ringing Switch Technology  
Programmable Inductor Peak Current  
Logic Shutdown Control  
Low 0.8V or 0.288V Reference Voltage  
Small 10 pin DFN or MSOP Package  
APPLICATIONS  
LED Driver  
Camera Flash  
Handheld Portable Devices  
DESCRIPTION  
The SP7648 is an ultra-low quiescent current, high efficiency step-up DC-DC converter ideal for  
single cell Li-Ion or dual cell alkaline battery applications to drive various LEDs. The SP7648  
combines low quiescent current and excellent light-load efficiency of PFM control. The SP7648  
featuressynchronousrectification,a0.3chargingswitch,ananti-ringinginductorswitch, under-  
voltage lockout and programmable inductor peak current. The device can be shut down by a  
1nA active LOW shutdown pin. A very low 0.288V reference voltage is optimized for driving a  
constant current load.  
TYPICAL APPLICATION CIRCUIT  
4.7µH  
VIN  
(2.7 - 4.5V)  
10µF  
®
VBATT  
LX  
SP7648  
ON/OFF  
SHDN  
RLIM  
VOUT  
10µF  
NC  
470pF  
FLASH  
0.33  
FB  
PGND  
RLIM  
GND  
1.0KΩ  
D1  
R1  
1KΩ  
R2  
Q1  
FLASH  
Date: 7/20/05  
SP7648 Ultra-low Quiescent Current, High Efficiency Boost Regulator  
© Copyright 2005 Sipex Corporation  
1

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