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LP2954AISX/NOPB

更新时间： 2024-11-19 02:58:35
品牌 Logo 应用领域
德州仪器 - TI 输出元件调节器
页数 文件大小 规格书
24页 2046K
描述
5-V and Adjustable Micropower LDOs

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LP2954AISX/NOPB 数据手册

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LP2954, LP2954A  
www.ti.com  
SNVS096D –JUNE 1999–REVISED MARCH 2013  
LP2954/LP2954A 5V and Adjustable Micropower Low-Dropout Voltage Regulators  
Check for Samples: LP2954, LP2954A  
1
FEATURES  
DESCRIPTION  
The LP2954 is a 5V micropower voltage regulator  
with very low quiescent current (90 μA typical at 1 mA  
load) and very low dropout voltage (typically 60 mV at  
light loads and 470 mV at 250 mA load current).  
2
•
5V Output within 1.2% Over Temperature  
(A Grade)  
•
Adjustable 1.23 to 29V Output Voltage  
Available (LP2954IM and LP2954AIM)  
The quiescent current increases only slightly at  
dropout (120 μA typical), which prolongs battery life.  
•
•
•
•
•
•
•
•
Ensured 250 mA Output Current  
Extremely Low Quiescent Current  
Low Dropout Voltage  
The LP2954 with a fixed 5V output is available in the  
three-lead TO-220 and DDPAK/TO-263 packages.  
The adjustable LP2954 is provided in an 8-lead  
surface mount, small outline package. The adjustable  
version also provides a resistor network which can be  
pin strapped to set the output to 5V.  
Reverse Battery Protection  
Extremely Tight Line and Load Regulation  
Very Low Temperature Coefficient  
Current and Thermal Limiting  
Reverse battery protection is provided.  
Pin Compatible with LM2940 and LM340  
(5V Version Only)  
The tight line and load regulation (0.04% typical), as  
well as very low output temperature coefficient make  
the LP2954 well suited for use as a low-power  
voltage reference.  
•
Adjustable Version Adds Error Flag to Warn of  
Output Drop and a Logic-Controlled Shutdown  
Output accuracy is ensured at both room temperature  
and over the entire operating temperature range.  
APPLICATIONS  
•
•
High-Efficiency Linear Regulator  
Low Dropout Battery-Powered Regulator  
Package Outline and Ordering Information  
Figure 1. TO-220 3–Lead Plastic Package (Front  
View)  
Figure 2. SO-8 Small Outline Surface Mount (Top  
View)  
Figure 3. TO-263 3-Lead Plastic Surface-Mount  
Package (Top View)  
Figure 4. TO-263 3-Lead Plastic Surface-Mount  
Package (Side View)  
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam  
during storage or handling to prevent electrostatic damage to the MOS gates.  
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 © 1999–2013, Texas Instruments Incorporated  
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LP2954AISX/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LP2954AIS TI

完全替代

 LP2954/LP2954A 5V and Adjustable Micropower Low-Dropout Voltage Regulators
LM2931AS-5.0/NOPB TI

类似代替

 LM2931-N Series Low Dropout Regulators
LM2931S-5.0/NOPB TI

类似代替

 LM2931-N Series Low Dropout Regulators

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 		250mA、30V、低压降稳压器 | D | 8 | -40 to 125
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LP2954IMX/NOPB TI

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