１．９
２．８０±０．０５
１．６０±０．０５
０．３５
２．９２±０．０５
０．９５±０．０２５ １．０２
JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD
SOT-23-3L Encapsulate Adjustable Reference Source
CJ431 Adjustable Accurate Reference Source
FEATURES
The output voltage can be adjusted to 36V
Low dynamic output impedance ,its typical value is 0.2Ω
Trapping current capability is 1 to 100mA
The typical value of the equivalent temperature factor in the
whole temperature scope is 50 ppm/ ℃
The effective temperature compensation in the working
range of full temperature
Low output noise voltage
Fast on -state response
ABSOLUTE MAXIMUM RATINGS（Operating temperature
range applies unless otherwise specified）
Parameter
SYMBOL VALUE UNITS
Cathode Voltage
V
KA 37 V
Cathode Current Range(Continuo
us) I
KA -100~+150 mA
Reference
Input Current Range
Iref
0.05
~+10 mA
Power Dissipation
P
D
350 mW
Topr
0
~70 ℃
Storage temperature Range
Tstg
-55~+150℃ ℃
ELECTRICAL CHARACTERISTICS（Tamb=25℃ unless otherwise specified）
Parameter Symbol Test conditions MIN TYP MAX
UNIT
Reference lnput Voltage V
ref VKA=VREF, IKA=10mA 2.440 2.495 2.550 V
Deviation of reference input Voltage
Over temperature (note ) △Vref/△T VKA =VREF, IKA =10mA
Tmin≤Ta≤Tmax 4.5 17 mV
△VKA
=10V～
V
REF
-1.0 -2.7 m V/V
Ratio Of Change in Reference Input
Voltage to the change in Cathode
Voltage △Vref/△VKA
IKA=10m
A △VKA
=36V～
10V
-0.5 -2.0
Reference Input Current l
ref IKA= 10mA,R1=10KΩ
R2=∞ 1.5 0.5 μA
Deviation Of Reference Input Current
Over Full Temperature Range △lref/△T
lKA=10mA, R1=10KΩ
R2=∞
TA=full Temperature
0.4 1.2 μA
Minimum cathode current for
Regulation IKA(min) VKA=VREF 0.45 1.0 mA
Off-state cathode Current IKA(OFF) VKA=36V ,VREF=0 0.05 1.0 μA
Dynamic Impedance ZKA VKA=VREF,lKA=1 to 100mA
f≤1.0KHz 0.15 0.5 Ω
Note：TMIN=0℃ ,TMAX=+70℃
ＳＯＴ－２３－
３Ｌ
１．
　ＲＥＦＥＲＥＮＣＥ
　
２．　ＣＡＴＨＯＤＥ
　
　
３．ＡＮＯＤＥ
　
SOT-23-3L PACKAGE OUTLINE DIMENSIONS
Symbol
A
A1
A2
b
c
D
E
E1
e
e1
L
L1
θ
Min
1.050
0.000
1.050
0.300
0.100
2.820
1.500
2.650
1.800
0.300
0°
Max
1.250
0.100
1.150
0.400
0.200
3.020
1.700
2.950
2.000
0.600
8°
Min
0.041
0.000
0.041
0.012
0.004
0.111
0.059
0.104
0.071
0.012
0°
Max
0.049
0.004
0.045
0.016
0.008
0.119
0.067
0.116
0.079
0.024
8°
Dimensions In Millimeters Dimensions In Inches
0.037TPY
0.028REF
0.950TPY
0.700REF
D
E1
A1
A2
A
E
L1
L
b
e1
C
0.2
e
θ