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LT3032IDE-15#PBF

更新时间： 2024-11-05 14:43:15
品牌 Logo 应用领域
亚德诺 - ADI 光电二极管输出元件调节器
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LT3032IDE-15#PBF

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LT3032 Series  
Dual 150mA  
Positive/Negative Low Noise  
Low Dropout Linear Regulator  
FEATURES  
DESCRIPTION  
TheLT®3032isadual, lownoise, positiveandnegativelow  
dropout voltage linear regulator. Each regulator delivers  
up to 150mA with a typical 300mV dropout voltage. Each  
regulator’s quiescent current is low (30µA operating and  
<3µAinshutdown)andwell-controlledindropout,making  
it an excellent choice for battery-powered circuits.  
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Low Noise: 20µV  
(Positive) and  
RMS  
30µV  
(Negative)  
RMS  
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Low Quiescent Current: 30µA/Channel  
Wide Input Voltage Range: 2ꢀ3V to 20V  
Output Current: 150mA  
Low Shutdown Current: <3µA Total (Typical)  
Low Dropout Voltage: 300mV/Channel  
Fixed Output Voltages: ±3.3V, ±5V, ±12V, ±15V  
Adjustable Outputs from ±1.22V to ±20V  
No Protection Diodes Needed  
Stable with 2.2µF Output Capacitors  
Stable with Ceramic, Tantalum or Aluminum Capacitors  
Starts into Reverse Output Voltage  
Current Limit and Thermal Limit  
Another key feature of the LT3032 is low output noise.  
Addinganexternal10nFbypasscapacitortoeachregulator  
reducesoutputnoiseto20µV  
100kHz bandwidth. The LT3032 is stable with minimum  
output capacitors of 2.2µF. The regulators do not require  
the addition of ESR as is common with other regulators.  
30µV  
overa10Hzto  
RMS/  
RMS  
Theregulatorsareofferedasadjustableoutputdeviceswith  
an output voltage down to the ±1.22V reference voltage or  
in fixed voltages of ±3.3V, ±5V, ±12V and ±15V. Internal  
protection circuitry includes reverse-output protection,  
current limiting and thermal limiting.  
Low Profile 14-Lead 4mm × 3mm × 0.75mm  
DFN Package  
APPLICATIONS  
The LT3032 is available in a unique low profile 14-lead  
4mm × 3mm × 0.75mm DFN package with exposed back-  
side pads for each regulator, allowing optimum thermal  
performance.  
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Battery-Powered Instruments  
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Bipolar Power Supplies  
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Low Noise Power Supplies  
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and  
ThinSOT is a trademark of Analog Devices, Inc. All other trademarks are the property of their  
respective owners.  
TYPICAL APPLICATION  
Dual Polarity Low Noise 150mA Power Supply  
10Hz to 100kHz Output Noise  
5V OUT AT 150mA  
20µV NOISE  
INP  
OUTP  
LT3032-5  
RMS  
5.4V TO  
20V  
<0.25V = OFF  
>2V = ON  
OUTP  
10µF  
10µF  
20µV  
30µV  
0.01µF  
0.01µF  
RMS  
RMS  
10µF  
100µV/DIV  
BYPP  
SHDNP  
SHDNN  
GND  
BYPN  
–5.4V TO  
–20V  
OUTN  
100µV/DIV  
10µF  
–5V OUT AT –150mA  
30µV NOISE  
INN  
OUTN  
RMS  
3032 TA01  
3032 TA02a  
1mS/DIV  
3032ff  
1
For more information www.linear.com/LT3032  
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