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LM2940CT-5MWC

更新时间： 2024-11-18 15:44:39
品牌 Logo 应用领域
美国国家半导体 - NSC 输出元件调节器
页数 文件大小 规格书
17页 408K
描述
IC VREG 5 V FIXED POSITIVE LDO REGULATOR, 1 V DROPOUT, UUC, WAFER, Fixed Positive Single Output LDO Regulator

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LM2940CT-5MWC 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
最大回动电压 1：1 V最大输入电压：26 V
最小输入电压：7 VJESD-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 1：5.25 V最小输出电压 1：4.75 V
标称输出电压 1：5 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：UPPERBase Number Matches：1

LM2940CT-5MWC 数据手册

 浏览型号LM2940CT-5MWC的Datasheet PDF文件第2页浏览型号LM2940CT-5MWC的Datasheet PDF文件第3页浏览型号LM2940CT-5MWC的Datasheet PDF文件第4页浏览型号LM2940CT-5MWC的Datasheet PDF文件第5页浏览型号LM2940CT-5MWC的Datasheet PDF文件第6页浏览型号LM2940CT-5MWC的Datasheet PDF文件第7页 
March 2000  
LM2940/LM2940C  
1A Low Dropout Regulator  
momentarily exceed the specified maximum operating volt-  
age, 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 in-  
sertion. Familiar regulator features such as short circuit and  
thermal overload protection are also provided.  
General Description  
The LM2940/LM2940C positive voltage regulator features  
the ability to source 1A of output current with a dropout volt-  
age of typically 0.5V and a maximum of 1V over the entire  
temperature range. Furthermore, a quiescent current reduc-  
tion circuit has been included which reduces the ground cur-  
rent 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 differ-  
ential of 5V is therefore only 30 mA. Higher quiescent cur-  
rents only exist when the regulator is in the dropout mode  
(VIN − VOUT ≤ 3V).  
Features  
@
n Dropout voltage typically 0.5V IO = 1A  
n Output current in excess of 1A  
n Output voltage trimmed before assembly  
n Reverse battery protection  
Designed also for vehicular applications, the LM2940/  
LM2940C and all regulated circuitry are protected from re-  
verse battery installations or 2-battery jumps. During line  
transients, such as load dump when the input voltage can  
n Internal short circuit current limit  
n Mirror image insertion protection  
n P+ Product Enhancement tested  
Typical Application  
DS008822-3  
*
Required if regulator is located far from power supply filter.  
**  
C
must be at least 22 µF to maintain stability. May be increased without bound to maintain regulation during transients. Locate as close as possible  
OUT  
to the regulator. This capacitor must be rated over the same operating temperature range as the regulator and the ESR is critical; see curve.  
Ordering Information  
Temperature  
Range  
Output Voltage  
9.0  
Package  
5.0  
8.0  
10  
12  
15  
0˚C ≤ TJ ≤ 125˚C  
−40˚C ≤ TJ ≤ 125˚C  
−40˚C ≤ TJ ≤ 85˚C  
LM2940CT-5.0  
LM2940CS-5.0  
LM2940T-5.0  
LM2940S-5.0  
LM2940CT-9.0  
LM2940CS-9.0  
LM2940T-9.0  
LM2940S-9.0  
LM2940CT-12  
LM2940CS-12  
LM2940T-12  
LM2940S-12  
LM2940CT-15  
LM2940CS-15  
TO-220  
TO-263  
TO-220  
TO-263  
LM2940T-8.0  
LM2940S-8.0  
LM2940T-10  
LM2940S-10  
LM2940IMP-5.0 LM2940IMP-8.0 LM2940IMP-9.0 LM2940IMP-10 LM2940IMP-12 LM2940IMP-15 SOT-223  
LM2940IMPX-5.0 LM2940IMPX-8.0 LM2940IMPX-9.0 LM2940IMPX-10 LM2940IMPX-12 LM2940IMPX-15 SOT-223  
in Tape  
and Reel  
SOT-223 Package  
Marking  
L53B  
L54B  
L0EB  
L55B  
L56B  
L70B  
The physical size of the SOT-223 is too small to contain the full device part number. The package markings indicated are what will appear on the actual device.  
Temperature  
Range  
Output Voltage  
Package  
5.0  
8.0  
12  
15  
−55˚C ≤ TJ ≤ 125˚C  
LM2940J-5.0/883  
5962-8958701EA  
LM2940J-8.0/883  
5962-9088301QEA  
LM2940J-12/883  
5962-9088401QEA  
LM2940J-15/883  
5962-9088501QEA  
J16A  
LM2940WG5.0/883  
5962-8958701XA  
WG16A  
For information on military temperature range products, please go to the Mil/Aero Web Site at http://www.national.com/appinfo/milaero/index.html.  
© 2000 National Semiconductor Corporation  
DS008822  
www.national.com  
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