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參數資料
| 型號： | LM431CIM3/NOPB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | LM431 Adjustable Precision Zener Shunt Regulator; Package: SOT-23; No of Pins: 3; Qty per Container: 1000/Reel |
| 中文描述： | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 2.5 V, PDSO3 |
| 封裝： | PLASTIC, SOT-23, 3 PIN |
| 文件頁數： | 1/13頁 |
| 文件大小： | 872K |
| 代理商： | LM431CIM3/NOPB |
LM431
Adjustable Precision Zener Shunt Regulator
General Description
The LM431 is a 3-terminal adjustable shunt regulator with
guaranteed temperature stability over the entire temperature
range of operation. It is now available in a chip sized pack-
age (4-Bump micro SMD) using National’s micro SMD pack-
age technology. The output voltage may be set at any level
greater than 2.5V (V
REF) up to 36V merely by selecting two
external resistors that act as a voltage divided network. Due
to the sharp turn-on characteristics this device is an excel-
lent replacement for many zener diode applications.
Features
n
Average temperature coefficient 50 ppm/C
n
Temperature compensated for operation over the full
temperature range
n
Programmable output voltage
n
Fast turn-on response
n
Low output noise
n
LM431 in micro SMD package
n
See AN-1112 for micro SMD considerations
Connection Diagrams
TO-92: Plastic Package
01005501
Top View
SO-8: 8-Pin Surface Mount
01005502
Top view
SOT-23: 3-Lead Small Outline
01005528
Top View
4-Bump micro SMD
01005554
Top View
(bump side down)
Note: *NC = Not internally connected. Must be electrically isolated from the rest of the circuit for the microSMD package.
March 2005
LM431
Adjustable
Precision
Zener
Shunt
Regulator
2005 National Semiconductor Corporation
DS010055
www.national.com
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LM431CIM3X | 功能描述:基準電壓& 基準電流 RoHS:否 制造商:STMicroelectronics 產品:Voltage References 拓撲結構:Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準確度:0.25 % 平均溫度系數（典型值）:100 PPM / C 串聯 VREF - 輸入電壓（最大值）: 串聯 VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
| LM431CIM3X/NOPB | 功能描述:基準電壓& 基準電流 RoHS:否 制造商:STMicroelectronics 產品:Voltage References 拓撲結構:Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準確度:0.25 % 平均溫度系數（典型值）:100 PPM / C 串聯 VREF - 輸入電壓（最大值）: 串聯 VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
| LM431CIM3XND | 制造商:Texas Instruments 功能描述: |
| LM431CIMX | 功能描述:基準電壓& 基準電流 Shunt Regulator 2.5V Programmable RoHS:否 制造商:STMicroelectronics 產品:Voltage References 拓撲結構:Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準確度:0.25 % 平均溫度系數（典型值）:100 PPM / C 串聯 VREF - 輸入電壓（最大值）: 串聯 VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
| LM431CIMX/NOPB | 制造商:Texas Instruments 功能描述:V-Ref Adjustable 2.495V to 37V 100mA 8-Pin SOIC N T/R |
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