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LMV431BIMF PDF预览

LMV431BIMF

更新时间: 2024-02-21 20:00:23
品牌 Logo 应用领域
美国国家半导体 - NSC 稳压器
页数 文件大小 规格书
16页 552K
描述
Low-Voltage (1.24V) Adjustable Precision Shunt Regulators

LMV431BIMF 技术参数

是否Rohs认证: 符合生命周期:Transferred
包装说明:TO-92, SIP3,.1,50Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.1其他特性:OUTPUT VOLTAGE ADJUSTABLE FROM 1.24V TO 30V
模拟集成电路 - 其他类型:TWO TERMINAL VOLTAGE REFERENCEJESD-30 代码:O-PBCY-W3
JESD-609代码:e2湿度敏感等级:1
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:1.278 V最小输出电压:1.202 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):260认证状态:Not Qualified
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:Tin/Copper (Sn/Cu)端子形式:WIRE
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:40微调/可调输出:YES
Base Number Matches:1

LMV431BIMF 数据手册

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August 2003  
LMV431/LMV431A/LMV431B  
Low-Voltage (1.24V) Adjustable Precision Shunt  
Regulators  
General Description  
Features  
n Low Voltage Operation/Wide Adjust Range (1.24V/30V)  
n 0.5% Initial Tolerance (LMV431B)  
n Temperature Compensated for Industrial Temperature  
Range (39 PPM/˚C for the LMV431AI)  
n Low Operation Current (55µA)  
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 configu-  
ration (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 cath-  
ode to the adjust pin (voltage follower) provides a cathode  
voltage of a 1.24V.  
n Low Output Impedance (0.25)  
n Fast Turn-On Response  
n Low Cost  
The LMV431, LMV431A and LMV431B have respective ini-  
tial 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  
n Shunt Regulator  
n Series Regulator  
n Current Source or Sink  
n Voltage Monitor  
n Error Amplifier  
n 3V Off-Line Switching Regulator  
n Low Dropout N-Channel Series Regulator  
The LMV431, LMV431A and LMV431B provide performance  
at a competitive price.  
Connection Diagrams  
TO92: Plastic Package  
SOT23-3  
10095801  
Top View  
10095867  
SOT23-5  
Top View  
10095844  
*
*
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.  
Top View  
© 2003 National Semiconductor Corporation  
DS100958  
www.national.com  

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