LM431SB Fairchild Semiconductor, LM431SB Datasheet - Page 3

• Manufacturer Part Number: LM431SB
• Description: The LM431SA/LM431SB/LM431SC are three terminal output adjustable regulators with thermal stability over operating temperature range
• Manufacturer: Fairchild Semiconductor

LM431SA/LM431SB/LM431SC Rev. 1.0.9
© 2012 Fairchild Semiconductor Corporation
Electrical Characteristics
(T
Note1
T
MIN
Parameter
Reference
Input Voltage
Deviation of
Reference
Input Voltage
Over-
Temperature
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 -Stage
Cathode
Current
Dynamic
Impedance
A
= +25°C, unless otherwise specified)
= -25°C, T
MAX
Δ
Symbol
Δ
I
I
V
Δ
KA(OFF)
I
KA(MIN)
Δ
V
REF
V
REF
I
Z
REF
V
REF
REF
KA
= +85°C
KA
/
/
Δ
Δ
/
T
T
V
V
I
T
I
I
R
I
R
R
T
V
V
V
I
f ≥1.0kHz
KA
KA
KA
KA
KA
MIN
A
KA
KA
KA
KA
KA
1
1
2
=10KΩ,R
=10KΩ,
=∞,
=10mA
=10mA,
=10mA,
=Full Range
=1 to 100mA ,
=10mA
=V
=V
=V
=36V, V
=V
≤
T
REF
REF
REF
REF
Conditions
A
≤
T
, I
,
,
MAX
2
REF
KA
=∞
=10mA
=0
SOT-89
SOT-23F
SOT-23
SOT-89
SOT-23F
SOT-23
Δ
-V
Δ
-10V
V
V
REF
KA
KA
=10V
=36V
2.450 2.500 2.550 2.470 2.495 2.520 2.482 2.495 2.508
Min. Typ. Max. Min. Typ. Max. Min. Typ. Max.
-
-
-
-
-
-
-
-
-
-
LM431SA
3
0.45
0.05
0.15
-1.0
-0.5
4.5
6.6
1.5
0.4
0.8
-2.7
-2.0
1.2
2.0
1.0
1.0
0.5
17
24
4
-
-
-
-
-
-
-
-
-
-
LM431SB
0.45
0.05
0.15
-1.0
-0.5
4.5
6.6
1.5
0.4
0.8
-2.7
-2.0
1.2
2.0
1.0
1.0
0.5
17
24
4
-
-
-
-
-
-
-
-
-
-
LM431SC
0.45
0.05
0.15
-1.0
-0.5
4.5
6.6
1.5
0.4
0.8
www.fairchildsemi.com
-2.7
-2.0
1.2
2.0
1.0
1.0
0.5
17
24
4
mV/V
Unit
mV
mV
mA
μ
μ
μ
μ
Ω
V
A
A
A
A