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LT8410

更新时间： 2024-09-26 14:58:07
品牌 Logo 应用领域
亚德诺 - ADI 转换器
页数 文件大小 规格书
16页 320K
描述
具输出断接功能的超低功率升压型转换器

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中文翻译

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LT8410 数据手册

 浏览型号LT8410的Datasheet PDF文件第2页浏览型号LT8410的Datasheet PDF文件第3页浏览型号LT8410的Datasheet PDF文件第4页浏览型号LT8410的Datasheet PDF文件第5页浏览型号LT8410的Datasheet PDF文件第6页浏览型号LT8410的Datasheet PDF文件第7页 
LT8410/LT8410-1  
Ultralow Power Boost  
Converter with Output  
Disconnect  
FEATURES  
DESCRIPTION  
TheLT ®8410/LT8410-1areultralowpowerboostconverters  
with integrated power switch, Schottky diode and output  
disconnect circuitry. The parts control power delivery by  
varying both the peak inductor current and switch off-  
time. This control scheme results in low output voltage  
ripple as well as high efficiency over a wide load range.  
The quiescent current is a low 8.5μA, which is further  
reduced to 0μA in shutdown. The internal disconnect  
circuitry allows the output voltage to be blocked from the  
input during shutdown. High value (12.4M/0.4M) resis-  
tors are integrated on chip for output voltage detection,  
significantlyreducinginputreferredquiescentcurrent.The  
LT8410/LT8410-1alsofeaturesacomparatorbuiltintothe  
n
Ultralow Quiescent Current  
8.5μA in Active Mode  
0μA in Shutdown Mode  
n
Comparator Built into SHDN Pin  
n
Low Noise Control Scheme  
n
Adjustable FB Reference Voltage  
n
Wide Input Range: 2.5V to 16V  
n
Wide Output Range: Up to 40V  
n
Integrated Power NPN Switch  
25mA Current Limit (LT8410)  
8mA Current Limit (LT8410-1)  
n
Integrated Schottky Diode  
n
Integrated Output Disconnect  
n
High Value (12.4M/0.4M) Feedback Resistors  
SHDN pin, overvoltage protection for the CAP and V  
OUT  
Integrated  
pins, built in soft-start and comes in a tiny 8-pin 2mm ×  
2mm DFN package.  
n
Built in Soft-Start (Optional Capacitor from V  
to GND)  
REF  
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear  
Technology Corporation. All other trademarks are the property of their respective owners.  
Protected by U.S. Patents, including 5481178, 6580258, 6304066, 6127815, 6498466,  
6611131.  
n
n
Overvoltage Protection for CAP and V  
Tiny 8-Pin 2mm × 2mm DFN Package  
Pins  
OUT  
APPLICATIONS  
n
Sensor Power  
n
RF Mems Relay Power  
n
General Purpose Bias  
TYPICAL APPLICATION  
General Purpose Bias with Wide Input Voltage  
Output Voltage Ripple  
vs Load Current  
Efficiency vs Load Current  
10  
8
100  
90  
80  
70  
60  
50  
40  
V
IN  
V
= 3.6V  
100µH  
IN  
2.5V to 16V  
V
= 12V  
IN  
2.2µF  
0.1µF  
V
SW  
CAP  
V
= 5V  
IN  
= 16V  
OUT  
V
V
CC  
OUT  
6
V
= 3.6V  
IN  
LT8410  
V
0.1µF*  
CHIP  
ENABLE  
REF  
SHDN  
4
604k  
0.1µF  
GND  
FBP  
2
412k  
*HIGHER VALUE CAPACITOR IS REQUIRED  
WHEN THE V IS HIGHER THAN 5V  
8410-1 TA01a  
IN  
0
0.01  
0.1  
1
10  
0.01  
0.1  
1
10  
100  
LOAD CURRENT (mA)  
8410-1 TA02  
LOAD CURRENT (mA)  
8410-1 TA03  
84101fc  
1
For more information www.linear.com/LT8410  
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