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LT1763IS8-3.3-PBF

更新时间： 2024-11-13 11:54:27
品牌 Logo 应用领域
凌特 - Linear 稳压器
页数 文件大小 规格书
22页 1120K
描述
500mA, Low Noise, LDO Micropower Regulators

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LT1763IS8-3.3-PBF 数据手册

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LT1763 Series  
500mA, Low Noise, LDO  
Micropower Regulators  
FEATURES  
DESCRIPTION  
TheLT®1763seriesaremicropower,lownoise,lowdropout  
regulators.Thedevicesarecapableofsupplying500mAof  
output current with a dropout voltage of 300mV. Designed  
foruseinbattery-poweredsystems,thelow30μAquiescent  
current makes them an ideal choice. Quiescent current is  
well controlled; it does not rise in dropout as it does with  
many other regulators.  
n
Low Noise: 20μV  
Output Current: 500mA  
(10Hz to 100kHz)  
RMS  
n
n
n
n
n
n
n
n
n
n
Low Quiescent Current: 30μA  
Wide Input Voltage Range: 1.8V to 20V  
Low Dropout Voltage: 300mV  
Very Low Shutdown Current: < 1μA  
No Protection Diodes Needed  
Fixed Output Voltages: 1.5V, 1.8V, 2.5V, 3V, 3.3V, 5V  
Adjustable Output from 1.22V to 20V  
Stable with 3.3μF Output Capacitor  
Stable with Aluminum, Tantalum or Ceramic  
Capacitors  
A key feature of the LT1763 regulators is low output noise.  
With the addition of an external 0.01μF bypass capacitor,  
output noise drops to 20μV  
bandwidth. The LT1763 regulators are stable with output  
capacitors as low as 3.3μF. Small ceramic capacitors can  
be used without the series resistance required by other  
regulators.  
over a 10Hz to 100kHz  
RMS  
n
n
n
n
Reverse Battery Protection  
No Reverse Current  
Overcurrent and Overtemperature Protected  
8-Lead SO and 12-Lead (4mm × 3mm) DFN  
Packages  
Internal protection circuitry includes reverse battery  
protection, current limiting, thermal limiting and reverse  
currentprotection.Thepartscomeinfixedoutputvoltages  
of 1.5V, 1.8V, 2.5V, 3V, 3.3V and 5V, and as an adjustable  
device with a 1.22V reference voltage. The LT1763  
regulators are available in 8-lead SO and 12-lead, low  
profile (4mm × 3mm × 0.75mm) DFN packages.  
APPLICATIONS  
n
Cellular Phones  
n
Battery-Powered Systems  
n
Noise-Sensitive Instrumentation Systems  
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and  
ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property  
of their respective owners. Protected by U.S. Patents including 6144250, 6118263.  
TYPICAL APPLICATION  
Dropout Voltage  
400  
350  
300  
250  
200  
150  
100  
50  
3.3V Low Noise Regulator  
3.3V AT 500mA  
20μV NOISE  
IN  
OUT  
V
IN  
RMS  
+
3.7V TO  
20V  
1μF  
SENSE  
10μF  
LT1763-3.3  
0.01μF  
SHDN  
GND  
BYP  
1763 TA01  
0
0
100  
200  
300  
400  
500  
OUTPUT CURRENT (mA)  
1763 TA02  
1763fg  
1
1234567...22

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