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LP2985ITP-2.8/NOPB PDF预览

LP2985ITP-2.8/NOPB

更新时间： 2024-11-23 12:09:51
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德州仪器 - TI 稳压器电容器
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36页 1429K
描述
Micropower 150 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 and DSBGA Packages Designed for Use with Very Low ESR Output Capacitors

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LP2985ITP-2.8/NOPB 数据手册

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LP2985-N  
www.ti.com  
SNVS018V –MARCH 2000–REVISED JUNE 2013  
LP2985-N Micropower 150 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 and  
DSBGA Packages  
Designed for Use with Very Low ESR Output Capacitors  
Check for Samples: LP2985-N  
1
FEATURES  
DESCRIPTION  
The LP2985-N is a 150 mA, fixed-output voltage  
regulator designed to provide ultra low-dropout and  
low noise in battery powered applications.  
2
•
Ultra Low Dropout Voltage  
•
•
Ensured 150 mA Output Current  
Smallest Possible Size (SOT-23, DSBGA  
Packages)  
Using an optimized VIP (Vertically Integrated PNP)  
process, the LP2985-N delivers unequalled  
performance in all specifications critical to battery-  
powered designs:  
•
•
•
•
•
•
•
•
•
•
•
Requires Minimum External Components  
Stable with Low-ESR Output Capacitor  
<1 µA Quiescent Current when Shut Down  
Low Ground Pin Current at All Loads  
Output Voltage Accuracy 1% (A Grade)  
High Peak Current Capability  
Dropout Voltage: Typically 300 mV @ 150 mA load,  
and 7 mV @ 1 mA load.  
Ground Pin Current: Typically 850 µA @ 150 mA  
load, and 75 µA @ 1 mA load.  
Wide Supply Voltage Range (16V Max)  
Low ZOUT: 0.3Ω Typical (10 Hz to 1 MHz)  
Overtemperature/Overcurrent Protection  
−40°C to +125°C Junction Temperature Range  
Custom Voltages Available  
Enhanced Stability: The LP2985-N is stable with  
output capacitor ESR as low as 5 mΩ, which allows  
the use of ceramic capacitors on the output.  
Sleep Mode: Less than 1 µA quiescent current when  
ON/OFF pin is pulled low.  
Smallest Possible Size: SOT-23 and DSBGA  
packages use absolute minimum board space.  
APPLICATIONS  
Precision Output: 1% tolerance output voltages  
available (A grade).  
•
•
•
•
Cellular Phone  
Palmtop/Laptop Computer  
Personal Digital Assistant (PDA)  
Camcorder, Personal Stereo, Camera  
Low Noise: By adding a 10 nF bypass capacitor,  
output noise can be reduced to 30 µV (typical).  
Multiple voltage options, from 2.5V to 5.0V, are  
available as standard products. Consult factory for  
custom voltages.  
BLOCK DIAGRAM  
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.  
All trademarks are the property of their respective owners.  
2
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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