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LT1372HVIN8

更新时间： 2024-11-12 22:05:03
品牌 Logo 应用领域
凌特 - Linear 稳压器开关光电二极管
页数 文件大小 规格书
12页 277K
描述
500kHz and 1MHz High Efficiency 1.5A Switching Regulators

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中文翻译

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LT1372HVIN8 技术参数

是否Rohs认证： 不符合生命周期：Transferred
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：5.28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：2.7 V
标称输入电压：5 VJESD-30 代码：R-PDIP-T8
JESD-609代码：e0湿度敏感等级：1
功能数量：1端子数量：8
最高工作温度：125 °C最低工作温度：-40 °C
最大输出电流：2.7 A封装主体材料：PLASTIC/EPOXY
封装代码：DIP封装等效代码：DIP8,.3
封装形状：RECTANGULAR封装形式：IN-LINE
峰值回流温度（摄氏度）：NOT SPECIFIED认证状态：Not Qualified
座面最大高度：3.937 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：580 kHz技术：BIPOLAR
温度等级：AUTOMOTIVE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处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：7.62 mm

LT1372HVIN8 数据手册

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LT1372/LT1377  
500kHz and 1MHz  
High Efficiency  
1.5A Switching Regulators  
U
DESCRIPTION  
FEATURES  
The LT®1372/LT1377 are monolithic high frequency  
switching regulators. They can be operated in all standard  
switching configurations including boost, buck, flyback,  
forward,invertingand“Cuk.”A1.5Ahighefficiencyswitch  
is included on the die, along with all oscillator, control and  
protection circuitry. All functions of the LT1372/LT1377  
are integrated into 8-pin SO/PDIP packages.  
■
Faster Switching with Increased Efficiency  
■
Uses Small Inductors: 4.7µH  
■
All Surface Mount Components  
■
Only 0.5 Square Inch of Board Space  
■
Low Minimum Supply Voltage: 2.7V  
■
Quiescent Current: 4mA Typ  
■
Current Limited Power Switch: 1.5A  
■
Regulates Positive or Negative Outputs  
The LT1372/LT1377 typically consumes only 4mA quies-  
centcurrent and has higher efficiencythan previous parts.  
High frequency switching allows for very small inductors  
to be used. All surface mount components consume less  
than 0.5 square inch of board space.  
■
Shutdown Supply Current: 12µA Typ  
■
Easy External Synchronization  
■
8-Pin SO or PDIP Packages  
U
APPLICATIONS  
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 APPLICATION  
12V Output Efficiency  
5V-to-12V Boost Converter  
100  
D1  
5V  
V
= 5V  
IN  
L1*  
MBRS120T3  
4.7µH  
†
V
OUT  
90  
80  
70  
60  
50  
12V  
5
V
IN  
R1  
4
8
2
53.6k  
1%  
ON  
V
SW  
S/S  
LT1372/LT1377  
FB  
OFF  
*COILCRAFT DO1608-472 (4.7µH) OR  
COILCRAFT DT3316-103 (10µH) OR  
SUMIDA CD43-4R7 (4.7µH) OR  
+
+
C1**  
22µF  
C4**  
22µF  
GND  
6, 7  
V
C
SUMIDA CD73-100KC (10µH) OR  
R2  
6.19k  
1%  
**AVX TPSD226M025R0200  
1
†MAX I  
OUT  
C2  
0.047µF  
R3  
2k  
L1  
I
OUT  
C3  
4.7µH 0.25A  
10µH 0.35A  
0.0047µF  
0.01  
0.1  
1
OUTPUT CURRENT (A)  
LT1372 • TA01  
LT1372 • TA02  
1
1234567...12

中文翻译

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