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LM2940CT-12/NOPB PDF预览

LM2940CT-12/NOPB

更新时间： 2024-11-22 20:19:43
品牌 Logo 应用领域
美国国家半导体 - NSC 局域网输出元件调节器
页数 文件大小 规格书
20页 416K
描述
IC VREG 12 V FIXED POSITIVE LDO REGULATOR, 1 V DROPOUT, PSFM3, LEAD FREE, PLASTIC, TO-220, 3 PIN, Fixed Positive Single Output LDO Regulator

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LM2940CT-12/NOPB 技术参数

是否Rohs认证：符合生命周期：Transferred
包装说明：, SIP3,.1TBReach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.06Is Samacsys：N
可调性：FIXED最大回动电压 1：1 V
标称回动电压 1：0.5 V最大绝对输入电压：45 V
最大输入电压：26 V最小输入电压：13.6 V
JESD-30 代码：R-PSFM-T3JESD-609代码：e3
最大电网调整率：0.12%最大负载调整率：0.12%
湿度敏感等级：1功能数量：1
输出次数：1端子数量：3
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：PLASTIC/EPOXY封装等效代码：SIP3,.1TB
封装形状：RECTANGULAR封装形式：FLANGE MOUNT
包装方法：RAIL峰值回流温度（摄氏度）：260
认证状态：Not Qualified调节器类型：FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
子类别：Other Regulators表面贴装：NO
技术：BIPOLAR端子面层：Matte Tin (Sn)
端子形式：THROUGH-HOLE端子节距：2.54 mm
端子位置：SINGLE处于峰值回流温度下的最长时间：40
最大电压容差：5%Base Number Matches：1

LM2940CT-12/NOPB 数据手册

 浏览型号LM2940CT-12/NOPB的Datasheet PDF文件第2页浏览型号LM2940CT-12/NOPB的Datasheet PDF文件第3页浏览型号LM2940CT-12/NOPB的Datasheet PDF文件第4页浏览型号LM2940CT-12/NOPB的Datasheet PDF文件第5页浏览型号LM2940CT-12/NOPB的Datasheet PDF文件第6页浏览型号LM2940CT-12/NOPB的Datasheet PDF文件第7页 
January 2007  
LM2940/LM2940C  
1A Low Dropout Regulator  
General Description  
age, the regulator will automatically shut down to protect both  
the internal circuits and the load. The LM2940/LM2940C can-  
not be harmed by temporary mirror-image insertion. Familiar  
regulator features such as short circuit and thermal overload  
protection are also provided.  
The LM2940/LM2940C positive voltage regulator 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 temper-  
ature range. Furthermore, a quiescent current reduction cir-  
cuit 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).  
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  
momentarily exceed the specified maximum operating volt-  
Features  
Dropout voltage typically 0.5V @IO = 1A  
■
■
■
■
■
■
■
Output current in excess of 1A  
Output voltage trimmed before assembly  
Reverse battery protection  
Internal short circuit current limit  
Mirror image insertion protection  
P+ Product Enhancement tested  
Typical Application  
882203  
*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.  
Ordering Information  
Temp  
Range  
Output Voltage  
Package  
5.0  
8.0  
–
9.0  
10  
–
12  
15  
LM2940CT-5.0  
LM2940CS-5.0  
LM2940CT-9.0  
LM2940CS-9.0  
LM2940CT-12 LM2940CT-15 TO-220  
LM2940CS-12 LM2940CS-15  
0°C  
–
–
≤ TJ ≤  
125°C  
TO-263  
LM2940CSX  
-5.0  
LM2940CSX  
-9.0  
LM2940CSX  
-12  
LM2940CSX  
-15  
–
–
LLP  
1k Units  
Tape and  
Reel  
LM2940LD-5.0 LM2940LD-8.0 LM2940LD-9.0 LM2940LD-10 LM2940LD-12 LM2940LD-15  
−40°C  
≤ TJ ≤  
125°C  
LLP  
4.5k  
Units  
Tape and  
Reel  
LM2940LDX  
-5.0  
LM2940LDX  
-8.0  
LM2940LDX  
-9.0  
LM2940LDX  
-10  
LM2940LDX  
-12  
LM2940LDX  
-15  
LM2940T-5.0  
LM2940S-5.0  
LM2940T-8.0  
LM2940S-8.0  
LM2940T-9.0  
LM2940S-9.0  
LM2940T-10  
LM2940S-10  
LM2940T-12  
LM2940S-12  
TO-220  
–
–
–
−40°C  
≤ TJ ≤  
125°C  
TO-263  
LM2940SX-5.0 LM2940SX-8.0 LM2940SX-9.0 LM2940SX-10 LM2940SX-12  
© 2007 National Semiconductor Corporation  
8822  
www.national.com  
1234567...20

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LM2940CT-12/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LM2940CT-12 NSC

完全替代

 1A Low Dropout Regulator
UA7812CKCS TI

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