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LT3024EFE#PBF PDF预览

LT3024EFE#PBF

更新时间: 2024-09-29 13:09:39
品牌 Logo 应用领域
凌特 - Linear 稳压器
页数 文件大小 规格书
16页 486K
描述
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LT3024EFE#PBF 数据手册

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LT3024  
Dual 100mA/500mA  
Low Dropout, Low Noise,  
Micropower Regulator  
U
FEATURES  
DESCRIPTIO  
The LT®3024 is a dual, micropower, low noise, low drop-  
out regulator. With an external 0.01µF bypass capacitor,  
output noise drops to 20µVRMS over a 10Hz to 100kHz  
bandwidth. Designedforuseinbattery-poweredsystems,  
the low 30µA quiescent current per output makes it an  
ideal choice. In shutdown, quiescent current drops to less  
than 0.1µA. Shutdown control is independent for each  
output, allowing for flexibility in power management. The  
device is capable of operating over an input voltage range  
of 1.8V to 20V. The device can supply 100mA of output  
current from Output 2 with a dropout voltage of 300mV.  
Output 1 can supply 500mA of output current with a  
dropout voltage of 300mV. Quiescent current is well  
controlled in dropout.  
Low Noise: 20µVRMS (10Hz to 100kHz)  
Low Quiescent Current: 30µA/Output  
Wide Input Voltage Range: 1.8V to 20V  
Output Current: 100mA/500mA  
Very Low Shutdown Current: <0.1µA  
Low Dropout Voltage: 300mV at 100mA/500mA  
Adjustable Outputs from 1.22V to 20V  
Stable with 1µF/3.3µF Output Capacitor  
Stable with Aluminum, Tantalum or  
Ceramic Capacitors  
Reverse-Battery Protected  
No Reverse Current  
No Protection Diodes Needed  
Overcurrent and Overtemperature Protected  
Thermally Enhanced 16-Lead TSSOP and 12-Lead  
(4mm × 3mm) DFN Packages  
The LT3024 regulator is stable with output capacitors as  
low as 1µF for the 100mA output and 3.3µF for the 500mA  
output. Small ceramic capacitors can be used without the  
series resistance required by other regulators.  
U
APPLICATIO S  
Internal protection circuitry includes reverse-battery pro-  
tection, current limiting, thermal limiting and reverse  
current protection. The device is available as an adjustable  
device with a 1.22V reference voltage. The LT3024 regu-  
latorisavailableinthethermallyenhanced16-leadTSSOP  
and 12-lead, low profile (4mm × 3mm × 0.75mm) DFN  
packages.  
Cellular Phones  
Pagers  
Battery-Powered Systems  
Frequency Synthesizers  
Wireless Modems  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
U
TYPICAL APPLICATIO  
3.3V/2.5V Low Noise Regulators  
10Hz to 100kHz Output Noise  
3.3V AT 500mA  
20µV NOISE  
IN  
OUT1  
RMS  
V
IN  
SHDN1  
SHDN2  
0.01µF  
10µF  
10µF  
422k  
249k  
3.7V TO  
20V  
1µF  
BYP1  
ADJ1  
V
OUT  
100µV/DIV  
20µV  
RMS  
LT3024  
2.5V AT 100mA  
20µV NOISE  
OUT2  
RMS  
0.01µF  
261k  
BYP2  
ADJ2  
3024 TA01b  
GND  
249k  
3024 TA01a  
3024f  
1

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