參數(shù)資料
型號(hào)： LMV431ACZ
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 基準(zhǔn)電壓源/電流源
英文描述： Low-Voltage (1.24V) Adjustable Precision Shunt Regulators
中文描述： 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.24 V, PBCY3
封裝： PLASTIC, TO-92, 3 PIN
文件頁(yè)數(shù)： 1/16頁(yè)
文件大?。?/td> 556K
代理商： LMV431ACZ
LMV431/LMV431A/LMV431B
Low-Voltage (1.24V) Adjustable Precision Shunt
Regulators
General 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 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.
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.
The LMV431, LMV431A and LMV431B provide performance
at a competitive price.
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)
n
Low Output Impedance (0.25
)
n
Fast Turn-On Response
n
Low Cost
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
Connection Diagrams
TO92: Plastic Package
10095801
Top View
SOT23-5
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
SOT23-3
10095867
Top View
August 2003
L
2003 National Semiconductor Corporation
DS100958
www.national.com
相關(guān)PDF資料
PDF描述
LMV431ACM5X Low-Voltage (1.24V) Adjustable Precision Shunt Regulators
LMV431A Low-Voltage (1.24V) Adjustable Precision Shunt Regulators
LMV431B Low-Voltage (1.24V) Adjustable Precision Shunt Regulators
LMV651 12MHz, Low Voltage, Low Power Amplifier
LMV651MG 12MHz, Low Voltage, Low Power Amplifier
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LMV431ACZ 制造商:Texas Instruments 功能描述:SHUNT REG ADJ +1.24/30V TO-92 431
LMV431ACZ/NOPB 功能描述:IC VREF SHUNT PREC ADJ TO-92-3 RoHS:是 類別:集成電路 (IC) >> PMIC - 電壓基準(zhǔn) 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 基準(zhǔn)類型:串聯(lián)，精度 輸出電壓:4.5V 容差:±800µV 溫度系數(shù):1ppm/°C 輸入電壓:13.5 V ~ 22 V 通道數(shù):1 電流 - 陰極:- 電流 - 靜態(tài):7mA 電流 - 輸出:10mA 工作溫度:-55°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:20-LCC 供應(yīng)商設(shè)備封裝:20-CLCC 包裝:管件
LMV431AIM5 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) 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
LMV431AIM5/NOPB 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 Low Vltg Adj Shunt Reg RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) 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
LMV431AIM5/NOPB 制造商:Texas Instruments 功能描述:Shunt Voltage Regulator IC
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