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LMV431AIZ/LFT3

更新时间： 2024-11-30 12:09:51
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德州仪器 - TI 稳压器
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27页 1478K
描述
Low-Voltage (1.24V) Adjustable Precision Shunt Regulators

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LMV431AIZ/LFT3 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active包装说明：TO-92, SIP3,.1,50
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：6 weeks
风险等级：1.39其他特性：ADJUSTABLE OUTPUT VOLTAGE TO 30V
模拟集成电路 - 其他类型：TWO TERMINAL VOLTAGE REFERENCEJESD-30 代码：O-PBCY-T3
JESD-609代码：e3长度：4.3 mm
功能数量：1输出次数：1
端子数量：3最高工作温度：85 °C
最低工作温度：-40 °C最大输出电流：0.015 A
最大输出电压：1.252 V最小输出电压：1.228 V
标称输出电压：1.24 V封装主体材料：PLASTIC/EPOXY
封装代码：TO-92封装等效代码：SIP3,.1,50
封装形状：ROUND封装形式：CYLINDRICAL
峰值回流温度（摄氏度）：NOT SPECIFIED认证状态：Not Qualified
座面最大高度：3.6 mm子类别：Voltage References
最大供电电压 (Vsup)：30 V最小供电电压 (Vsup)：1.24 V
标称供电电压 (Vsup)：6 V表面贴装：NO
技术：BIPOLAR最大电压温度系数：129.032 ppm/ °C
温度等级：INDUSTRIAL端子面层：Matte Tin (Sn)
端子形式：THROUGH-HOLE端子节距：1.27 mm
端子位置：BOTTOM处于峰值回流温度下的最长时间：NOT SPECIFIED
微调/可调输出：YES最大电压容差：1%
宽度：4.3 mm

LMV431AIZ/LFT3 数据手册

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LMV431, LMV431A, LMV431B  
www.ti.com  
SNVS041F –MAY 2004–REVISED MAY 2005  
LMV431/LMV431A/LMV431B Low-Voltage (1.24V) Adjustable Precision Shunt Regulators  
Check for Samples: LMV431, LMV431A, LMV431B  
1
FEATURES  
DESCRIPTION  
The LMV431, LMV431A and LMV431B are precision  
1.24V shunt regulators capable of adjustment to 30V.  
Negative feedback from the cathode to the adjust pin  
controls the cathode voltage, much like a non-  
inverting op amp configuration (Refer to Symbol and  
Functional diagrams). A two resistor voltage divider  
terminated at the adjust pin controls the gain of a  
1.24V band-gap reference. Shorting the cathode to  
the adjust pin (voltage follower) provides a cathode  
voltage of a 1.24V.  
2
•
Low Voltage Operation/Wide Adjust Range  
(1.24V/30V)  
•
•
0.5% Initial Tolerance (LMV431B)  
Temperature Compensated for Industrial  
Temperature Range (39 PPM/°C for the  
LMV431AI)  
•
•
•
•
Low Operation Current (55µA)  
Low Output Impedance (0.25Ω)  
Fast Turn-On Response  
Low Cost  
The LMV431, LMV431A and LMV431B have  
respective initial tolerances of 1.5%, 1% and 0.5%,  
and functionally lends themselves to several  
applications that require zener diode type  
performance at low voltages. Applications include a  
3V to 2.7V low drop-out regulator, an error amplifier  
in a 3V off-line switching regulator and even as a  
voltage detector. These parts are typically stable with  
capacitive loads greater than 10nF and less than  
50pF.  
APPLICATIONS  
•
•
•
•
•
•
•
Shunt Regulator  
Series Regulator  
Current Source or Sink  
Voltage Monitor  
Error Amplifier  
The LMV431, LMV431A and LMV431B provide  
performance at a competitive price.  
3V Off-Line Switching Regulator  
Low Dropout N-Channel Series Regulator  
Connection Diagram  
*Pin 1 is not internally connected.  
*Pin 2 is internally connected to Anode pin. Pin 2 should be either  
floating or connected to Anode pin.  
Figure 1. TO-92: Plastic Package  
Top View  
Figure 2. SOT-23-5  
Top View  
ANODE  
REF  
CATHODE  
Figure 3. SOT-23-3  
Top View  
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 © 2004–2005, Texas Instruments Incorporated  
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LMV431AIZ/LFT3 替代型号

型号 品牌 替代类型 描述 数据表
LMV431AIZ/NOPB TI

完全替代

 Low-Voltage (1.24V) Adjustable Precision Shunt Regulators
LMV431CZ/NOPB TI

类似代替

 Low-Voltage (1.24V) Adjustable Precision Shunt Regulators

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