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LBMG

更新时间: 2024-10-29 03:50:35
品牌 Logo 应用领域
凌特 - Linear 稳压器
页数 文件大小 规格书
16页 197K
描述
20mA, 3V to 80V Low Dropout Micropower Linear Regulator

LBMG 数据手册

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LT3014  
20mA, 3V to 80V  
Low Dropout Micropower  
Linear Regulator  
U
FEATURES  
DESCRIPTIO  
The LT®3014 is a high voltage, micropower low dropout  
linear regulator. The device is capable of supplying 20mA  
of output current with a dropout voltage of 350mV. De-  
signed for use in battery-powered or high voltage sys-  
tems, the low quiescent current (7µA operating and 1µA in  
shutdown) makes the LT3014 an ideal choice. Quiescent  
current is also well controlled in dropout.  
Wide Input Voltage Range: 3V to 80V  
Low Quiescent Current: 7µA  
Low Dropout Voltage: 350mV  
Output Current: 20mA  
LT3014HV Survives 100V Transients (2ms)  
No Protection Diodes Needed  
Adjustable Output from 1.22V to 60V  
1µA Quiescent Current in Shutdown  
Other features of the LT3014 include the ability to operate  
with very small output capacitors. The regulators are  
stable with only 0.47µF on the output while most older  
devices require between 10µF and 100µF for stability.  
Small ceramic capacitors can be used without the neces-  
sary addition of ESR as is common with other regulators.  
Internal protection circuitry includes reverse-battery pro-  
tection, current limiting, thermal limiting and reverse  
current protection.  
Stable with 0.47µF Output Capacitor  
Stable with Aluminum, Tantalum or Ceramic  
Capacitors  
Reverse-Battery Protection  
No Reverse Current Flow from Output  
Thermal Limiting  
Available in 5-Lead ThinSOTTM and  
8-Lead DFN Packages  
U
APPLICATIO S  
Thedeviceisavailableasanadjustabledevicewitha1.22V  
reference voltage. The LT3014 regulator is available in the  
5-lead ThinSOT and 8-lead DFN packages.  
, 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.  
Low Current High Voltage Regulators  
Regulator for Battery-Powered Systems  
Telecom Applications  
Automotive Applications  
U
TYPICAL APPLICATIO  
Dropout Voltage  
400  
350  
300  
250  
200  
150  
100  
50  
5V Supply with Shutdown  
V
OUT  
IN  
OUT  
5V  
20mA  
V
IN  
LT3014  
3.92M  
1.27M  
5.4V TO  
80V  
0.47µF  
1µF  
SHDN  
GND  
ADJ  
3014 TA01  
V
OUTPUT  
OFF  
ON  
SHDN  
<0.3V  
>2.0V  
0
0
2
4
6
8
10 12 14 16 18 20  
OUTPUT CURRENT (mA)  
3014 TA02  
3014fb  
1

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