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LX2173CP

更新时间: 2024-11-25 20:24:51
品牌 Logo 应用领域
美高森美 - MICROSEMI 局域网开关
页数 文件大小 规格书
6页 185K
描述
Switching Regulator, Current-mode, 2.8A, 115kHz Switching Freq-Max, PSFM5, PLASTIC, TO-220, 5 PIN

LX2173CP 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:PLASTIC, TO-220, 5 PIN
针数:3Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.78Is 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:25 V
最小输入电压:3 V标称输入电压:5 V
JESD-30 代码:R-PSFM-W5JESD-609代码:e0
湿度敏感等级:1功能数量:1
端子数量:5最高工作温度:70 °C
最低工作温度:最大输出电流:2.8 A
封装主体材料:PLASTIC/EPOXY封装代码:TO-220
封装形状:RECTANGULAR封装形式:FLANGE MOUNT
峰值回流温度(摄氏度):260认证状态:Not Qualified
表面贴装:NO切换器配置:BUCK-BOOST
最大切换频率:115 kHz温度等级:COMMERCIAL
端子面层:Tin/Lead (Sn/Pb)端子形式:WIRE
端子位置:SINGLE处于峰值回流温度下的最长时间:40
Base Number Matches:1

LX2173CP 数据手册

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LIN DOC #: 2172  
LX2172/73  
1.25A HIGH-EFFICIENCY 100KHZ SWITCHING REGULATOR  
P R E L I M I N A R Y D A T A S H E E T  
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  
DESCRIPTION  
KEY FEATURES  
1.25A, 65V Internal Power Switch  
3V - 25V Input Voltage Range  
The LX2172/73 are fixed-frequency, cur-  
rent-mode switching regulator integrated  
circuits. These ICs contain all necessary  
control circuitry plus a 1.25A on-board  
transistor to design a complete DC:DC  
switching regulator with minimum exter-  
nal components.  
All functions are integrated into a single  
IC, available in 8-pin DIP and SOIC or a  
5-pin TO-220 power package, making  
them extremely easy to design with and  
use. The LX2172/73 are optimized for  
boost and flyback applications, but can  
also be used in forward and inverting  
converter configuations.  
Current-Mode Operation  
The LX2172 can be connected to an  
external clock for synchronization, and  
can enter micropower operation when  
the VC pin is pulled low. The LX2173  
has an enable function, which permits  
extremely low micropower operation,  
consuming under 10µA current when the  
ENABLE pin is brought low.  
Improved Internal Cycle-By-Cycle Current  
Limiting  
Thermal Shutdown  
Less Than 10µA Quiescent Current In  
Microprocessor Shutdown Mode  
External Frequency Synchronization  
Possible  
100kHz Operating Frequency  
APPLICATIONS  
NOTE: For current data & package dimensions, visit our web site: http://www.linfinity.com.  
Boost Converter  
PRODUCT HIGHLIGHT  
Laptop / Notebook Computers  
Portable Equipment  
Small Motor Applications  
Flyback Converters  
SEPIC CONVERTER USING THE LX2172  
Input 6-24V, Output 7V, 300mA  
VIN  
Output  
6-24VDC  
7V  
C2  
AVAILABLE OPTIONS PER PAR T #  
300mA  
330µF  
D1  
L1  
Pin 4  
7V  
Part #  
Connections  
1mH  
C1  
C3  
1N5817  
LX2172  
LX2173  
SYNC Input  
Low µPower Mode  
(HI ENABLE)  
U1  
COUT  
220µF  
22µF  
0.1µF  
1
2
3
4
8
GND  
E2  
R1  
7
6
5
= Samples Not Yet Available.  
VC  
VSW  
E1  
13.7k  
FB  
C4  
0.47µF  
L2  
1mH  
SYNC  
VIN  
(See Note 1)  
CDECOUPLE  
0.47µF  
R2  
3.0k  
R3  
100  
Note 1: SYNC Pin Requirements:  
A) FMAX = 200kHz  
B) TTL Compatible Level  
C) Pulse Width TP Range - 0.1µs < TP < 2.0µs  
PACKAGE ORDER INFORMATION  
Plastic DIP  
8-pin  
Plastic SOIC  
8-pin  
Plastic TO-220  
5-pin  
TA (°C)  
M
DM  
P
0 to 70  
LX217xCM  
LX217xCDM  
LX217xCP  
Note: All surface-mount packages are available in Tape & Reel.  
Append the letter "T" to part number. (i.e. LX217xCDMT)  
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 .  
11861 WESTERN AVENUE, GARDEN GROVE, CA. 92841, 714-898-8121, FAX: 714-893-2570  
Copyright © 1998  
Rev. 0.4 12/98  
1

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