GM431 Datasheet, PDF (1/3 Pages) Gamma Microelectronics Inc. – 2.5V ADJUSTABLE SHUNT REGULATOR

ISSUED DATE :2003/05/15
REVISED DATE :2004/11/10B
GM431
Adjustable Shunt Regulator
Description
The GM431 series are three-terminal adjustable regulators with guaranteed thermal stability over applicable temperature ranges.
The output voltage may be set to any value between VREF (approximately 2.495v) and 36v with two external resistors.
It provides very wide applications, including shunt regulator, series regulator, switching regulator, voltage reference and others.
Package Dimensions
SOT-89
Absolute Maximum Ratings at Ta = 25к
Parameter
Junction Temperature
Symbol
Tj
Storage Temperature
Tstg
Cathode Voltage
VKA
Cathode Current Range(Continuous)
IKA
Reference Input Current Range
IREF
Total Power Dissipation
PD
Characteristics at Ta = 25к
Parameter
Cathode Voltage
Cathode Current
Reference Input Voltage
GM431C
GM431B
GM431A
Deviation of reference Input Voltage
Over temperature(note)
Ratio of Change in Reference Input
Voltage to the Change in Cathode Voltage
Reference Input Current
Deviation of reference Input Current
Over Full Temperature Range
Minimum Cathode Current for Regulation
Off-State Cathode Current
Dynamic Impedance
Symbol
VKA
IKA
VREF
Min
VREF
1
2.445
2.470
2.483
VREF/ T
-
-
VREF/ VKA
-
IREF
-
IREF/ T
-
IKA(min)
-
IKA(off)
-
̏ʳZkA ̏
-
Note: Tmin= 0ć,Tmax=+70ć
REF.
A
B
C
D
E
F
Millimeter
Min.
Max.
4.4
4.6
4.05
4.25
1.50
1.70
1.30
1.50
2.40
2.60
0.89
1.20
REF.
G
H
I
J
K
L
M
Millimeter
Min.
Max.
3.00 REF.
1.50 REF.
0.40
0.52
1.40
1.60
0.35
0.41
5q TYP.
0.70 REF.
Ratings
Unit
+150
ć
-65 ~ +150
ć
37
V
-100~+150
mA
-0.05~+10
mA
1.0
W
Typ.
-
-
2.495
2.495
2.495
4.5
-1.0
-0.5
1.5
0.4
0.45
0.05
0.15
Max.
36
100
2.545
2.520
2.507
17
-2.7
-2.0
4
1.2
1.0
1.0
0.5
Unit
Test Conditions
V
mA
V VKA= VREF,IK=10mA
VKA=VREF,IK=10mA
mV
TminЉTaЉTmax
mV/V IK=10mA
VKA=10V~VREF
VKA=36V~10V
uA IK=10mA,R1=10K ,R2=
IK=10mA,R1=10K ,R2=
uA
TA=Full Temperature
mA VKA=VREF
uA VKA=36V,VREF=0
VKA=VREF,IK=1 to 100mA,F 1.0KHz
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