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LM2937ESX-3.3 PDF预览

LM2937ESX-3.3

更新时间： 2024-11-18 12:09:43
品牌 Logo 应用领域
德州仪器 - TI 稳压器
页数 文件大小 规格书
19页 1942K
描述
LM2937-2.5, LM2937-3.3 400mA and 500mA Voltage Regulators

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LM2937ESX-3.3 技术参数

是否无铅： 不含铅是否Rohs认证： 不符合
生命周期：Not Recommended零件包装代码：D2PAK
包装说明：TO-263, SMSIP3H,.55TB针数：4
Reach Compliance Code：not_compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：6 weeks
风险等级：5.44可调性：FIXED
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：4.75 V
JESD-30 代码：R-PSSO-G3JESD-609代码：e0
长度：10.16 mm最大电网调整率：0.033%
最大负载调整率：0.033%湿度敏感等级：3
功能数量：1输出次数：1
端子数量：3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 1：3.46 V最小输出电压 1：3.14 V
标称输出电压 1：3.3 V封装主体材料：PLASTIC/EPOXY
封装代码：TO-263封装等效代码：SMSIP3H,.55TB
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
包装方法：TR峰值回流温度（摄氏度）：235
认证状态：Not Qualified调节器类型：FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
座面最大高度：4.8 mm子类别：Other Regulators
表面贴装：YES技术：BIPOLAR
端子面层：Tin/Lead (Sn/Pb)端子形式：GULL WING
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 SPECIFIED最大电压容差：4.8%
宽度：8.635 mm

LM2937ESX-3.3 数据手册

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LM2937-2.5, LM2937-3.3  
www.ti.com  
SNVS015E –FEBRUARY 1998–REVISED APRIL 2013  
LM2937-2.5, LM2937-3.3 400mA and 500mA Voltage Regulators  
Check for Samples: LM2937-2.5, LM2937-3.3  
1
FEATURES  
DESCRIPTION  
The LM2937-2.5 and LM2937-3.3 are positive voltage  
2
•
•
•
•
•
Fully Specified for Operation Over −40°C to  
+125°C  
regulators capable of supplying up to 500 mA of load  
current. Both regulators are ideal for converting a  
common 5V logic supply, or higher input supply  
voltage, to the lower 2.5V and 3.3V supplies to power  
VLSI ASIC's and microcontrollers. 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 5V.  
Output Current in Excess of 500 mA (400mA  
for SOT-223 package)  
Output Trimmed for 5% Tolerance Under All  
Operating Conditions  
Wide Output Capacitor ESR Range, 0.01Ω up  
to 5Ω  
Internal Short Circuit and Thermal Overload  
Protection  
The LM2937 requires an output bypass capacitor for  
stability. As with most regulators utilizing a PNP pass  
transistor, the ESR of this capacitor remains a critical  
design parameter, but the LM2937-2.5 and LM2937-  
3.3 include special compensation circuitry that  
relaxes ESR requirements. The LM2937 is stable for  
all ESR ratings less than 5Ω. This allows the use of  
low ESR chip capacitors.  
•
•
•
Reverse Battery Protection  
60V Input Transient Protection  
Mirror Image Insertion Protection  
The regulators are also suited for automotive  
applications, with built in protection 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  
Figure 1. TO-220 Plastic Package  
Figure 2. SOT-223 Plastic Package  
Front View  
See Package Number DCY0004A  
Front View  
See Package Number NDE0003B  
Figure 3. DDPAK/TO-263 Surface-Mount Package  
Top View  
Figure 4. DDPAK/TO-263 Surface-Mount Package  
Side View  
See Package Number KTT0003B  
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 © 1998–2013, Texas Instruments Incorporated  
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LM2937ESX-3.3 替代型号

型号 品牌 替代类型 描述 数据表
LM2937ESX-3.3/NOPB TI

类似代替

 LM2937-2.5, LM2937-3.3 400mA and 500mA Voltage Regulators
LM2937ES-3.3 TI

类似代替

 LM2937-2.5, LM2937-3.3 400mA and 500mA Voltage Regulators

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