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參數(shù)資料
| 型號： | IRU431LCS |
| 英文描述： | VOLT REGULATOR|ADJUSTABLE|+1.24 TO +15V|BIPOLAR|SOP|8PIN|PLASTIC |
| 中文描述： | 電壓調(diào)節(jié)器|調(diào)節(jié)| 1.24至15V |雙極|專科| 8引腳|塑料 |
| 文件頁數(shù)： | 1/6頁 |
| 文件大?。?/td> | 93K |
| 代理商： | IRU431LCS |
IRU431L / IRU431AL
1
Rev. 1.5
07/13/01
TYPICAL APPLICATION
DESCRIPTION
The IRU431L is a three-terminal adjustable shunt regu-
lator that can also be used as a precision voltage refer-
ence. Its output voltage may be set to any value be-
tween Vref(1.24V) and 15V with two external resistors
as shown in the typical application circuit. Other appli-
cations of this device include being used as a merged
amplifier and reference in applications such as a linear
regulator or as the secondary side controller in low volt-
age power supply applications. The IRU431L only re-
quires 80
μ
A maximum quiescent current before regu-
lating, making it ideal as a voltage reference for battery
type applications.
LOW -VOLTAGE ADJUSTABLE
PRECISION SHUNT REGULATOR
PACKAGE ORDER INFORMATION
Ta (
°
C) 5-PIN PKG 3-PIN PKG 8-PIN PLASTIC
SOT-23 (L5) MARK SOT-23 (L3) MARK SOIC (S)
0 To 70 IRU431LCL5 431L IRU431LCL3 431L IRU431LCS
0 To 70 IRU431ALCL5 431A IRU431ALCL3 431A IRU431ALCS
Figure 1 - Typical application of the IRU431L as a shunt regulator / voltage reference.
Data Sheet No. PD94118
R
B
R1
R2
Co
IRU431L
V
IN
V
OUT
FEATURES
SOT-23 and SOIC Packages
0.5% Voltage Reference Initial Accuracy
(IRU431AL)
Low Operating Cathode Current
(80
μ
A max)
Unconditionally Stable with only 1
μ
F
Adjustable Output from 1.24V to 15V
0.25
Typical Output Impedance
Pin to Pin Compatible with TLV431
Precision Voltage Reference
Linear Regulator Controller
Secondary Side Controller for the Low Voltage
Power Supply Applications
APPLICATIONS
Vo = Vref
×
o
1 + R2
p
R1
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