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LP2966_15

更新时间： 2024-11-23 00:59:59
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德州仪器 - TI /
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22页 1355K
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Dual 150mA Ultra Low-Dropout Regulator

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LP2966_15 数据手册

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LP2966  
www.ti.com  
SNVS028E –APRIL 2000–REVISED APRIL 2013  
Dual 150mA Ultra Low-Dropout Regulator  
Check for Samples: LP2966  
1
FEATURES  
KEY SPECIFICATIONS  
2
•
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Ultra Low Drop-Out Voltage  
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Dropout Voltage: Varies Linearly with Load  
Current. Typically 0.9 mV at 1mA Load Current  
and 135mV at 150mA Load Current  
Low Ground Pin Current  
<1µA Quiescent Current in Shutdown Mode  
Independent Shutdown of Each LDO Regulator  
Output Voltage Accuracy ±1%  
Ground Pin Current: Typically 300µA at 1mA  
Load Current and 340µA at 100mA Load  
Current (with One Shutdown Pin Pulled Low)  
Ensured 150mA Output Current at Each  
Output  
Shutdown Mode: Less than 1µA Quiescent  
Current when Both Shutdown Pins are Pulled  
Low  
•
•
•
•
•
Low Output Noise  
Error Flags Indicate Status of Each Output  
Available in VSSOP-8 Surface Mount Package  
Low Output Capacitor Requirements (1µF)  
Error Flag: Open Drain Output, Goes Low  
when the Corresponding Output Drops 10%  
Below Nominal  
Precision Output Voltage: Multiple Output  
Voltage Options Available Ranging from 1.8V  
to 5.0V with an Ensured Accuracy of ±1% at  
Room Temperature  
Operates with Low ESR Ceramic Capacitors in  
Most Applications  
•
•
Over Temperature/Over Current Protection  
-40°C to +125°C Junction Temperature Range  
DESCRIPTION  
APPLICATIONS  
The LP2966 dual ultra low-dropout (LDO) regulator  
operates from a +2.70V to +7.0V input supply. Each  
output delivers 150mA over full temperature range.  
The IC operates with extremely low drop-out voltage  
and quiescent current, which makes it very suitable  
for battery powered and portable applications. Each  
LDO in the LP2966 has independent shutdown  
capability. The LP2966 provides low noise  
performance with low ground pin current in an  
extremely small VSSOP-8 package (refer to package  
dimensions and CONNECTION DIAGRAM for more  
information on VSSOP-8 package). A wide range of  
preset voltage options are available for each output.  
In addition, many more are available upon request  
with minimum orders. In all, 256 voltage combinations  
are possible.  
•
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•
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Cellular and Wireless Applications  
Palmtop/Laptop Computer  
GPS Systems  
Flat Panel Displays  
Post Regulators  
USB Applications  
Hand Held Equipment and Multimeters  
Wireless Data Terminals  
Other Battery Powered Applications  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
2
All trademarks are the property of their respective owners.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2000–2013, Texas Instruments Incorporated  
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