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LM2940CT-12MDC PDF预览

LM2940CT-12MDC

更新时间： 2024-11-22 13:09:23
品牌 Logo 应用领域
德州仪器 - TI 稳压器
页数 文件大小 规格书
35页 2445K
描述
12V FIXED POSITIVE LDO REGULATOR, 1V DROPOUT, UUC, DIE

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LM2940CT-12MDC 技术参数

生命周期：Obsolete包装说明：DIE,
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.62
Is Samacsys：N最大回动电压 1：1 V
最大输入电压：26 V最小输入电压：13.6 V
JESD-30 代码：X-XUUC-N功能数量：1
工作温度TJ-Max：125 °C工作温度TJ-Min：
最大输出电流 1：1 A最大输出电压 1：12.6 V
最小输出电压 1：11.4 V标称输出电压 1：12 V
封装主体材料：UNSPECIFIED封装代码：DIE
封装形状：UNSPECIFIED封装形式：UNCASED CHIP
认证状态：Not Qualified调节器类型：FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
表面贴装：YES技术：BIPOLAR
端子形式：NO LEAD端子位置：UPPER
Base Number Matches：1

LM2940CT-12MDC 数据手册

 浏览型号LM2940CT-12MDC的Datasheet PDF文件第2页浏览型号LM2940CT-12MDC的Datasheet PDF文件第3页浏览型号LM2940CT-12MDC的Datasheet PDF文件第4页浏览型号LM2940CT-12MDC的Datasheet PDF文件第5页浏览型号LM2940CT-12MDC的Datasheet PDF文件第6页浏览型号LM2940CT-12MDC的Datasheet PDF文件第7页 
LM2940-N, LM2940C  
www.ti.com  
SNVS769I –MARCH 2000–REVISED APRIL 2013  
LM2940-N/LM2940C 1A Low Dropout Regulator  
Check for Samples: LM2940-N, LM2940C  
1
FEATURES  
DESCRIPTION  
The LM2940-N/LM2940C positive voltage regulator  
2
•
•
•
•
•
•
•
Dropout Voltage Typically 0.5V @IO = 1A  
Output Current in Excess of 1A  
features the ability to source 1A of output current with  
a dropout voltage of typically 0.5V and a maximum of  
1V over the entire temperature range. Furthermore, a  
quiescent current reduction circuit has been included  
which reduces the ground current when the  
differential between the input voltage and the output  
voltage exceeds approximately 3V. The quiescent  
current with 1A of output current and an input-output  
differential of 5V is therefore only 30 mA. Higher  
quiescent currents only exist when the regulator is in  
the dropout mode (VIN − VOUT ≤ 3V).  
Output Voltage Trimmed Before Assembly  
Reverse Battery Protection  
Internal Short Circuit Current Limit  
Mirror Image Insertion Protection  
P+ Product Enhancement Tested  
Designed also for vehicular applications, the LM2940-  
N/LM2940C and all regulated circuitry are protected  
from reverse battery installations or 2-battery jumps.  
During line transients, such as load dump when the  
input voltage can momentarily exceed the specified  
maximum operating voltage, the regulator will  
automatically shut down to protect both the internal  
circuits and the load. The LM2940/LM2940C cannot  
be harmed by temporary mirror-image insertion.  
Familiar regulator features such as short circuit and  
thermal overload protection are also provided.  
Typical Application  
*Required if regulator is located far from power supply filter.  
**COUT must be at least 22 μF to maintain stability. May be increased without bound to maintain regulation during  
transients. Locate as close as possible to the regulator. This capacitor must be rated over the same operating  
temperature range as the regulator and the ESR is critical; see curve.  
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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