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LT1373HVCS8#TRPBF PDF预览

LT1373HVCS8#TRPBF

更新时间： 2024-11-07 13:09:35
品牌 Logo 应用领域
凌特 - Linear 稳压器开关
页数 文件大小 规格书
12页 184K
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中文翻译

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LT1373HVCS8#TRPBF 数据手册

 浏览型号LT1373HVCS8#TRPBF的Datasheet PDF文件第2页浏览型号LT1373HVCS8#TRPBF的Datasheet PDF文件第3页浏览型号LT1373HVCS8#TRPBF的Datasheet PDF文件第4页浏览型号LT1373HVCS8#TRPBF的Datasheet PDF文件第5页浏览型号LT1373HVCS8#TRPBF的Datasheet PDF文件第6页浏览型号LT1373HVCS8#TRPBF的Datasheet PDF文件第7页 
LT1373  
250kHz Low Supply Current  
High Efficiency  
1.5A Switching Regulator  
U
FEATURES  
DESCRIPTIO  
The LT®1373 is a low supply current high frequency  
current mode switching regulator. It can be operated in all  
standard switching configurations including boost, buck,  
flyback, forward, inverting and “Cuk.” A 1.5A high effi-  
ciency switch is included on the die, along with all oscilla-  
tor, control and protection circuitry. All functions of the  
LT1373 are integrated into 8-pin SO/PDIP packages.  
■
1mA IQ at 250kHz  
■
Uses Small Inductors: 15µH  
■
All Surface Mount Components  
■
Only 0.6 Square Inch of Board Space  
■
Low Minimum Supply Voltage: 2.7V  
■
Constant Frequency Current Mode  
■
Current Limited Power Switch: 1.5A  
■
Regulates Positive or Negative Outputs  
Compared to the 500kHz LT1372, which draws 4mA of  
quiescent current, the LT1373 switches at 250kHz, typi-  
cally consumes only 1mA and has higher efficiency. High  
frequencyswitchingallowsforsmallinductorstobeused.  
All surface mount components consume less than 0.6  
square inch of board space.  
■
Shutdown Supply Current: 12µA Typ  
■
Easy External Synchronization  
■
8-Pin SO or PDIP Packages  
U
APPLICATIO S  
New design techniques increase flexibility and maintain  
ease of use. Switching is easily synchronized to an exter-  
nal logic level source. A logic low on the shutdown pin  
reduces supply current to 12µA. Unique error amplifier  
circuitry can regulate positive or negative output voltage  
while maintaining simple frequency compensation tech-  
niques. Nonlinear error amplifier transconductance re-  
duces output overshoot on start-up or overload recovery.  
Oscillator frequency shifting protects external compo-  
nents during overload conditions.  
■
Boost Regulators  
■
CCFL Backlight Driver  
■
Laptop Computer Supplies  
■
Multiple Output Flyback Supplies  
■
Inverting Supplies  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
U
TYPICAL APPLICATIO  
12V Output Efficiency  
5V-to-12V Boost Converter  
100  
V
= 5V  
IN  
f = 250kHz  
D1  
5V  
L1*  
22µH  
MBRS120T3  
†
V
90  
80  
70  
60  
50  
OUT  
12V  
5
R1  
215k  
1%  
V
IN  
4
8
2
ON  
V
S/S  
SW  
FB  
OFF  
+
C4**  
22µF  
LT1373  
+
C1**  
22µF  
†MAX I  
L1  
OUT  
GND  
V
C
1
I
OUT  
15µH 0.3A  
22µH 0.35A  
R2  
6, 7  
24.9k  
1%  
C2  
0.01µF  
*SUMIDA CD75-220KC (22µH) OR  
COILCRAFT D03316-153 (15µH)  
AVX TPSD226M025R0200  
R3  
5k  
1
10  
100  
1000  
**  
OUTPUT CURRENT (mA)  
LT1373 • TA01  
LT1373 • TA02  
1
1234567...12

中文翻译

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LT1373HVCS8#TRPBF 替代型号

型号 品牌 替代类型 描述 数据表
LT1373HVIS8#TR Linear

完全替代

 LT1373 - 250kHz Low Supply Current High Efficiency 1.5A Switching Regulator; Package: SO;
LT1373HVCS8#TR Linear

完全替代

 LT1373 - 250kHz Low Supply Current High Efficiency 1.5A Switching Regulator; Package: SO;
LT1373HVCS8 Linear

完全替代

 250kHz Low Supply Current High Efficiency 1.5A Switching Regulator

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