1.9
2.80±0.05
1.60±0.05
0.35
2.92±0.05
0.95±0.025
1.02




AV431 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 VKA 37 V
Cathode Current Range(Continuous) IKA -100~+150 mA
Reference Input Current Range Iref 0.05~+10 mA
Power Dissipation PD 350 mW
Operating temperature 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 Vref 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～
VREF
-1.0 -2.7 m V/V Ratio Of Change in Reference Input
Voltage to the change in Cathode
Voltage
△ Vref/△ VKA IKA=10mA
△ VKA
=36V～
10V
-0.5 -2.0
Reference Input Current lref IKA= 10mA,R1=10KΩ R
2=∞
1.5 0.5 μ A
Deviation Of Reference Input Current
Over Full Temperature Range △ lref/△ T
lKA=10mA, R1=10KΩ
R2=∞
TA=full Temperature
0.4 1.2 μ A
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 μ A
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. CATHOD E

3.ANODE