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MIC2171BT PDF预览

MIC2171BT

更新时间: 2024-02-18 12:16:08
品牌 Logo 应用领域
美国微芯 - MICROCHIP 局域网开关
页数 文件大小 规格书
12页 187K
描述
Switching Regulator, Current-mode, 5.5A, 115kHz Switching Freq-Max, BIPolar, TO-220, 5 PIN

MIC2171BT 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
零件包装代码:SFM包装说明:TO-220, SIP5,.1,67TB
针数:3Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.65Is Samacsys:N
模拟集成电路 - 其他类型:SWITCHING REGULATOR控制模式:CURRENT-MODE
控制技术:PULSE WIDTH MODULATION最大输入电压:40 V
最小输入电压:3 V标称输入电压:5 V
JESD-30 代码:R-XSFM-T5JESD-609代码:e0
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
最大输出电流:5.5 A标称输出电压:1.24 V
封装主体材料:UNSPECIFIED封装代码:TO-220
封装等效代码:SIP5,.1,67TB封装形状:RECTANGULAR
封装形式:FLANGE MOUNT峰值回流温度(摄氏度):240
认证状态:Not Qualified子类别:Switching Regulator or Controllers
最大供电电流 (Isup):9 mA表面贴装:NO
切换器配置:BOOST最大切换频率:115 kHz
技术:BIPOLAR温度等级:INDUSTRIAL
端子面层:Tin/Lead (Sn85Pb15)端子形式:THROUGH-HOLE
端子节距:1.7 mm端子位置:SINGLE
处于峰值回流温度下的最长时间:30Base Number Matches:1

MIC2171BT 数据手册

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MIC2171  
100kHz 2.5A Switching Regulator  
General Description  
Features  
The MIC2171 is a complete 100kHz SMPS current-mode  
controller with an internal 65V 2.5A power switch.  
2.5A, 65V internal switch rating  
3V to 40V input voltage range  
Although primarily intended for voltage step-up applica-  
tions, the floating switch architecture of the MIC2171  
makes it practical for step-down, inverting, and Cuk config-  
urations as well as isolated topologies.  
Current-mode operation, 2.5A peak  
Internal cycle-by-cycle current limit  
Thermal shutdown  
Twice the frequency of the LM2577  
Low external parts count  
Operates in most switching topologies  
7mA quiescent current (operating)  
Fits LT1171/LM2577 TO-220 and TO-263 sockets  
Operating from 3V to 40V, the MIC2171 draws only 7mA  
of quiescent current, making it attractive for battery  
operated supplies.  
The MIC2171 is available in a 5-pin TO-220 or TO-263 for  
–40°C to +85°C operation.  
Data sheets and support documentation can be found on  
Micrel’s web site at: www.micrel.com.  
Applications  
Laptop/palmtop computers  
Battery operated equipment  
Hand-held instruments  
Off-line converter up to 50W(requires external power  
switch)  
Pre-driver for higher power capability  
___________________________________________________________________________________________________________  
Typical Application  
+5V  
VOUT  
5V, 0.5A  
VIN  
4V to 6V  
(4.75V min.)  
T1  
C1*  
L1  
15µH  
D2  
1N5818  
C1  
R4*  
C3*  
47µF  
47µF  
R1  
VOUT  
+12V, 0.25A  
C4  
470µF  
3.74k  
1%  
D1  
IN  
D1*  
SW  
IN  
R1  
10.7k  
1%  
1N5822  
SW  
MIC2171  
COMP  
1:1.25  
LPRI= 12µH  
MIC2171  
FB  
R2  
R3  
1k  
C2  
470µF  
GND  
COMP  
GND  
FB  
1.24k  
R2  
1%  
R3  
1k  
C3  
1µF  
1.24k  
1%  
C2  
1µF  
* Locate near MIC2171 when supply leads > 2”  
* Optional voltage clipper (may be req’d if T1 leakage inductance too high)  
Figure 1. MIC2171 5V to 12V Boost Converter  
Figure 2. MIC2171 5VFlyback Converter  
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com  
M9999-051107  
May 2007  
1

MIC2171BT 替代型号

型号 品牌 替代类型 描述 数据表
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