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LT3014 PDF预览

LT3014

更新时间: 2024-09-17 14:57:55
品牌 Logo 应用领域
亚德诺 - ADI 稳压器
页数 文件大小 规格书
16页 181K
描述
20mA、3V 至 18V 低压差微功率线性稳压器

LT3014 数据手册

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LT3014  
20mA, 3V to 80V  
Low Dropout Micropower  
Linear Regulator  
FEATURES  
DESCRIPTION  
The LT®3014 is a high voltage, micropower low dropout  
linearregulator.Thedeviceiscapableofsupplying20mAof  
output current with a dropout voltage of 350mV. Designed  
foruseinbattery-poweredorhighvoltagesystems,thelow  
quiescent current (7μA operating and 1μA in shutdown)  
makes the LT3014 an ideal choice. Quiescent current is  
also well controlled in dropout.  
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Wide Input Voltage Range: 3V to 80V  
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Low Quiescent Current: 7µA  
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Low Dropout Voltage: 350mV  
Output Current: 20mA  
n
n
LT3014HV Survives 100V Transients (2ms)  
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No Protection Diodes Needed  
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Adjustable Output from 1.22V to 60V  
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1µA Quiescent Current in Shutdown  
Other features of the LT3014 include the ability to operate  
withverysmalloutputcapacitors.Theregulatorsarestable  
with only 0.47μF on the output while most older devices  
requirebetween1Fand100μFforstability.Smallceramic  
capacitors can be used without the necessary addition of  
ESR as is common with other regulators. Internal protec-  
tion circuitry includes reverse-battery protection, current  
limiting, thermal limiting and reverse current protection.  
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Stable with 0.47µF Output Capacitor  
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Stable with Aluminum, Tantalum or Ceramic  
Capacitors  
Reverse-Battery Protection  
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No Reverse Current Flow from Output  
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Thermal Limiting  
Available in 5-Lead ThinSOTTM and  
8-Lead DFN Packages  
Thedeviceisavailableasanadjustabledevicewitha1.22V  
reference voltage. The LT3014 regulator is available in the  
5-lead ThinSOT and 8-lead DFN packages.  
APPLICATIONS  
n
Low Current High Voltage Regulators  
L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.  
ThinSOT is a trademark of Linear Technology Corporation.  
All other trademarks are the property of their respective owners.  
Protected by U.S. Patents including 6118263, 6144250.  
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Regulator for Battery-Powered Systems  
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Telecom Applications  
Automotive Applications  
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TYPICAL APPLICATION  
5V Supply with Shutdown  
Dropout Voltage  
400  
V
OUT  
350  
300  
250  
200  
150  
100  
50  
IN  
OUT  
ADJ  
5V  
20mA  
V
IN  
LT3014  
3.92M  
1.27M  
5.4V TO  
80V  
0.47μF  
1μF  
SHDN  
GND  
3014 TA01  
V
OUTPUT  
SHDN  
<0.3V  
>2.0V  
OFF  
ON  
0
0
2
4
6
8
10 12 14 16 18 20  
OUTPUT CURRENT (mA)  
3014 TA02  
3014fd  
1

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