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LM2937ET-12

更新时间： 2024-11-21 12:02:47
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德州仪器 - TI 稳压器
页数 文件大小 规格书
24页 1991K
描述
LM2937 500 mA Low Dropout Regulator

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LM2937ET-12 技术参数

生命周期：Not Recommended零件包装代码：SFM
包装说明：SFM, SIP3,.1TB针数：3
Reach Compliance Code：not_compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：7.48
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：26 V
最大输入电压：26 V最小输入电压：14 V
JESD-30 代码：R-XSFM-T3JESD-609代码：e0
长度：14.986 mm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：-40 °C最高工作温度：125 °C
最低工作温度：-40 °C最大输出电流 1：0.5 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：SFM封装等效代码：SIP3,.1TB
封装形状：RECTANGULAR封装形式：FLANGE MOUNT
包装方法：TUBE峰值回流温度（摄氏度）：NOT APPLICABLE
认证状态：Not Qualified调节器类型：FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
座面最大高度：4.7 mm子类别：Other Regulators
表面贴装：NO技术：BIPOLAR
端子面层：Tin/Lead (Sn/Pb)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：NOT APPLICABLE最大电压容差：5%
宽度：10.16 mmBase Number Matches：1

LM2937ET-12 数据手册

 浏览型号LM2937ET-12的Datasheet PDF文件第2页浏览型号LM2937ET-12的Datasheet PDF文件第3页浏览型号LM2937ET-12的Datasheet PDF文件第4页浏览型号LM2937ET-12的Datasheet PDF文件第5页浏览型号LM2937ET-12的Datasheet PDF文件第6页浏览型号LM2937ET-12的Datasheet PDF文件第7页 
LM2937  
www.ti.com  
SNVS100E –MARCH 2000–REVISED APRIL 2013  
LM2937 500 mA Low Dropout Regulator  
Check for Samples: LM2937  
1
FEATURES  
DESCRIPTION  
The LM2937 is a positive voltage regulator capable of  
supplying up to 500 mA of load current. The use of a  
PNP power transistor provides a low dropout voltage  
characteristic. With a load current of 500 mA the  
minimum input to output voltage differential required  
for the output to remain in regulation is typically 0.5V  
(1V ensured maximum over the full operating  
temperature range). Special circuitry has been  
incorporated to minimize the quiescent current to  
typically only 10 mA with a full 500 mA load current  
when the input to output voltage differential is greater  
than 3V.  
2
•
Fully Specified for Operation Over −40°C to  
+125°C  
•
•
Output Current in Excess of 500 mA  
Output Trimmed for 5% Tolerance Under all  
Operating Conditions  
•
Typical Dropout Voltage of 0.5V at Full Rated  
Load Current  
•
•
Wide Output Capacitor ESR Range, up to 3Ω  
Internal Short Circuit and Thermal Overload  
Protection  
•
•
•
Reverse Battery Protection  
The LM2937 requires an output bypass capacitor for  
stability. As with most low dropout regulators, the  
ESR of this capacitor remains a critical design  
parameter, but the LM2937 includes special  
60V Input Transient Protection  
Mirror Image Insertion Protection  
compensation  
circuitry  
that  
relaxes  
ESR  
requirements. The LM2937 is stable for all ESR  
below 3Ω. This allows the use of low ESR chip  
capacitors.  
Ideally suited for automotive applications, the LM2937  
will protect itself and any load circuitry from reverse  
battery connections, two-battery jumps and up to  
+60V/−50V load dump transients. Familiar regulator  
features such as short circuit and thermal shutdown  
protection are also built in.  
Connection Diagrams  
Front View  
Front View  
Figure 1. TO-220 Plastic Package  
See Package Number NDE0003B  
Figure 2. SOT-223 Plastic Package  
See Package Number DCY0004A  
Top View  
Side View  
Figure 3. DDPAK/TO-263 Surface-Mount Package  
See Package Number KTT0003B  
Figure 4. DDPAK/TO-263 Surface-Mount Package  
See Package Number KTT0003B  
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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LM2937ET-12 替代型号

型号 品牌 替代类型 描述 数据表
LM2937ET-12/NOPB TI

完全替代

 LM2937 500 mA Low Dropout Regulator
LF120ABV STMICROELECTRONICS

功能相似

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LM2937ET-12 NSC

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