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MIC2141-BM5 PDF预览

MIC2141-BM5

更新时间: 2024-09-16 21:05:47
品牌 Logo 应用领域
美国微芯 - MICROCHIP 开关光电二极管
页数 文件大小 规格书
16页 842K
描述
SWITCHING REGULATOR, 360kHz SWITCHING FREQ-MAX, PDSO5, SOT-23, 5 PIN

MIC2141-BM5 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Obsolete零件包装代码:SOT-23
包装说明:SOT-23, 5 PIN针数:5
Reach Compliance Code:compliant风险等级:5.18
其他特性:ALSO OPEREATES IN ADJUSTABLE MODE FROM 4.8V TO 22V模拟集成电路 - 其他类型:SWITCHING REGULATOR
控制模式:VOLTAGE-MODE控制技术:HYSTERETIC CURRENT MODE
最大输入电压:14 V最小输入电压:2.5 V
标称输入电压:3.6 VJESD-30 代码:R-PDSO-G5
JESD-609代码:e0长度:2.9 mm
湿度敏感等级:1功能数量:1
端子数量:5最高工作温度:85 °C
最低工作温度:-40 °C标称输出电压:5 V
封装主体材料:PLASTIC/EPOXY封装代码:LSSOP
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
峰值回流温度(摄氏度):240认证状态:Not Qualified
座面最大高度:1.45 mm表面贴装:YES
切换器配置:BOOST最大切换频率:360 kHz
温度等级:INDUSTRIAL端子面层:TIN LEAD
端子形式:GULL WING端子节距:0.95 mm
端子位置:DUAL处于峰值回流温度下的最长时间:30
宽度:1.6 mmBase Number Matches:1

MIC2141-BM5 数据手册

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MIC2141  
Micropower Boost Converter  
General Description  
Features  
The MIC2141 is a micropower boost switching regulator  
that can operate from 3- or 4-cell nickel-metal-hydride  
batteries or a single Li-ion cell. This regulator employs a  
constant 330kHz, fixed 18% duty-cycle, gated-oscillator  
architecture.  
Implements low-power boost, SEPIC, or flyback  
2.2V to 14V input voltage  
330kHz switching frequency  
<2µA shutdown current  
70µA quiescent current  
1.24V bandgap reference  
The MIC2141 can be used in applications where the  
output voltage must be dynamically adjusted. The device  
features  
a control signal input which is used to  
Typical output current 1mA to 10mA  
SOT23-5 package  
proportionally adjust the output voltage. The control signal  
input has a gain of 6, allowing a 0.8V to 3.6V control signal  
to vary a 4.8V to 22V output.  
Applications  
The MIC2141 requires only three external components to  
operate and is available in a tiny 5-pin SOT-23 package for  
space and power-sensitive portable applications. The  
MIC2141 draws only 70µA of quiescent current and can  
operate with an efficiency exceeding 85%.  
LCD bias supply  
CCD digital camera supply  
Data sheets and support documentation can be found on  
Micrel’s web site at: www.micrel.com.  
___________________________________________________________________________________________________________  
Typical Application  
Control Voltage  
vs. Output Voltage  
10µH  
Variable  
VOUT  
4.0  
3.5  
3.0  
2.5  
2.0  
1.5  
1.0  
0.5  
0
VC*  
(from DAC)  
MIC2141  
1
2
3
5
4
10µF  
0
5
10  
15  
20  
25  
VOUT (V)  
DAC-Controlled LCD Bias Voltage Supply  
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com  
M9999-122006  
December 2006  
1

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