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SP6644EU/TR PDF预览

SP6644EU/TR

更新时间: 2024-11-09 13:13:55
品牌 Logo 应用领域
西伯斯 - SIPEX 转换器电池
页数 文件大小 规格书
15页 201K
描述
Switching Regulator, 1A, PDSO8, MO-187AA, MSOP-8

SP6644EU/TR 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
包装说明:MO-187AA, MSOP-8Reach Compliance Code:unknown
风险等级:5.83模拟集成电路 - 其他类型:SWITCHING REGULATOR
控制技术:PULSE FREQUENCY MODULATION最大输入电压:3.3 V
最小输入电压:1.1 V标称输入电压:1.3 V
JESD-30 代码:S-PDSO-G8长度:3 mm
湿度敏感等级:1功能数量:1
端子数量:8最高工作温度:85 °C
最低工作温度:-40 °C最大输出电流:1 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:0.65 mm端子位置:DUAL
宽度:3 mmBase Number Matches:1

SP6644EU/TR 数据手册

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®
SP6644/6645  
Single/Dual Alkaline Cell, High Efficiency  
Boost DC-DC Regulator  
90mA Output Current at 1.3V Input  
190mA Output Current at 2.6V Input  
+2V to +5.5V Output Range  
0.88V Guaranteed Start-Up  
92% High Efficiency  
1.6µA Quiescent Supply Current at VBATT  
Reverse Battery Protection  
Internal Synchronous Rectifier  
5nA Logic Controlled Shutdown Current  
From VBATT  
V
1
8
7
6
4
VOUT  
LX  
BAT  
SP6644  
SP6645  
BATTL0  
2
3
R
GND  
FB  
LIM  
8 Pin MSOP  
4
SHDN  
Low-Battery Detection Active LOW Output  
Small 8 Pin MSOP Package  
Flexibility to Optimize Inductor Type with  
Programmable Peak Current Control  
No External FETs  
DESCRIPTION  
The SP6644/6645 devices are high-efficiency, low-power step-up DC-DC converters ideal  
for single or dual alkaline cell applications such as pagers, remote controls, pointing devices,  
medical monitors, and other low-power portable end products. Designers can control the  
SP6644 device with an active LOW shutdown input. The SP6644 device features an active  
low output for batteries below +1.0V. The SP6645 device features an active low output for  
batteries below +2.0V. Both devices contain a 0.8synchronous rectifier, a 0.5Ω  
N-channel MOSFET power switch, an internal voltage reference, circuitry for pulse-  
frequency-modulation, and an under voltage comparator. The output voltage for the  
SP6644/6645 devices is preset to +3.3V + 4% or can be adjusted from +2V to +5.5V by  
manipulating two external resistors  
TYPICAL APPLICATION CIRCUIT  
22µH  
0.7A  
0.88V to  
3.3V Input  
V
BATT  
LX  
47µF  
V
OUT  
RLIM  
+3.3VOUT  
SP6644  
SP6645  
47µF  
BATTLO  
SHDN  
GND  
FB  
Rev:B Date 4/13/04  
SP6644/6645 High Efficiency Boost Regulator  
© Copyright 2004 Sipex Corporation  
1

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