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LX2172MY

更新时间： 2024-09-17 13:09:55
品牌 Logo 应用领域
美高森美 - MICROSEMI 稳压器开关功效
页数 文件大小 规格书
6页 254K
描述
Switching Regulator, Current-mode, 2.8A, 115kHz Switching Freq-Max, BIPolar, CDIP8, CERAMIC, DIP-8

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中文翻译

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LX2172MY 技术参数

是否Rohs认证： 不符合生命周期：Obsolete
零件包装代码：DIP包装说明：DIP, DIP8,.3
针数：8Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.8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：35 V最小输入电压：3 V
标称输入电压：15 VJESD-30 代码：R-CDIP-T8
JESD-609代码：e0长度：10.415 mm
功能数量：1端子数量：8
最高工作温度：125 °C最低工作温度：-55 °C
最大输出电流：2.8 A封装主体材料：CERAMIC, METAL-SEALED COFIRED
封装代码：DIP封装等效代码：DIP8,.3
封装形状：RECTANGULAR封装形式：IN-LINE
认证状态：Not Qualified座面最大高度：5.08 mm
子类别：Switching Regulator or Controllers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：MILITARY
端子面层：Tin/Lead (Sn/Pb)端子形式：THROUGH-HOLE
端子节距：2.54 mm端子位置：DUAL
宽度：7.62 mmBase Number Matches：1

LX2172MY 数据手册

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LX2172 / 73  
1.25A HIGH-EFFICIENCY 100KH  
Z
SWITCHING  
REGULATOR  
P
R E L I M I N A R Y  
D
A T A H E E T  
S
T
H E  
I
N F I N I T E  
P
O W E R O F  
I N N O V A T I O N  
KEY FEATURES  
DESCRIPTION  
The LX2172/73 are fixed-frequency,  
current-mode switching regulator integrated also be used in forward and inverting  
circuits. These ICs contain all necessary converter configuations.  
control circuitry plus a 1.25A on-board  
transistor to design a complete DC:DC external clock for synchronization, and can  
switching regulator with minimum external enter micropower operation when the VC  
boost and flyback applications, but can  
„
1.25A, 65V Internal Power  
Switch  
„
„
„
3V - 25V Input Voltage Range  
Current-Mode Operation  
Improved Internal Cycle-By-  
Cycle Current Limiting  
Thermal Shutdown  
Less Than 10µA Quiescent  
Current In Microprocessor  
Shutdown Mode  
The LX2172 can be connected to an  
„
„
components.  
pin is pulled low. The LX2173 has an  
All functions are integrated into a single enable function, which permits extremely  
IC, available in 8-pin DIP and SOIC or a 5- low micropower operation, consuming  
pin TO-220 power package, making them under 10µA current when the ENALE  
extremely easy to design with and use. The pin is brought low  
„
„
External Frequency  
Synchronization Possible  
100kHz Operating Frequency  
LX2172/73 are optimized for  
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com  
APPLICATIONS  
„
„
„
„
„
Boost Converter  
PRODUCT HIGHLIGHT  
Laptop / Notebook Computers  
Portable Equipment  
Small Motor Applications  
Flyback Converters  
SEPIC CONVER TER  
U
SING  
THE LX2172  
Input 6-24V, Output 7V, 300mA  
VIN  
6-24V DC  
Output  
7V  
300mA  
Part #  
Pin 4 Connection  
C2  
330 µF  
LX2172  
SYNC Input  
D
L1  
7V  
Low µPower Mode  
(Hi ENABLE)  
1mH  
LX2173  
C1  
C3  
817  
U1  
COUT  
220 µF  
22µF  
0.1µF  
1
2
3
4
8
7
6
5
GND  
E
2
R
13.7k  
1
VC  
VSW  
FB  
E
C4  
0.47 µF  
1
L2  
1mH  
SYNC  
VIN  
(See Note 1)  
CDECOUPLE  
0.47 µF  
R
R
2
3
3.0k  
100  
Note 1: SYNC Pin Requirements:  
A) FMAX = 200kHz  
B) TTL Compatible Level  
C) Pulse Width T Range - 0.1µs < TP < 2.0µs  
P
PACKAGE ORDER INFO  
Plastic DIP  
Pin  
Plastic SOIC  
Plastic TO-220  
5-Pin  
M
DM  
P
8-Pin  
TA (°C)  
RoHS Compliant / Pb-free  
Transition DC: 0503  
RoHS Compliant / Pb-free  
Transition DC: 0440  
0 to 70  
LX217xCM  
LX217xCDM  
LX217xCP  
Note: Available in Tape & Reel. Append the letters “TR” to the part number. (i.e. LX2172CDM-TR)  
L
I N  
F
I N I T Y  
M
I C R O E L E C T R O N I C S  
I N C .  
Copyright © 1998  
Rev. 0.4a ,2005-03-09  
1
11861 WESTERN  
A
VENUE, GARDEN GROVE, CA. 92841, 714-898-8121, FAX: 714-893-2570  
123456

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LX2173IDMT MICROSEMI

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 		Switching Regulator, Current-mode, 2.8A, 115kHz Switching Freq-Max, PDSO8, PLASTIC, SOIC-8
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