UNISONIC TECHNOLOGIES CO., LTD
TL431
LINEAR INTEGRATED CIRCUIT
PROGRAMMABLE PRECISION
1
REFERENCE
.
1
SOT-89
TO-92
ꢀ
DESCRIPTION
The UTC TL431 is a three-terminal adjustable regulator with a
guaranteed thermal stability over applicable temperature ranges.
The output voltage may be set to any value between VREF
(approximately 2.5V) and 36 V with two external resistors. It
provides very wide applications, including shunt regulator, series
regulator, switching regulator, voltage reference and others.
SOP-8
1
3
2
3
5
1
2
4
SOT-23
SOT-25
ꢀ
FEATURES
*Programmable output Voltage to 36V.
*Low dynamic output impedance 0.2Ω.
*Sink current capability of 1.0 to 100mA.
*Equivalent full-range temperature coefficient of 50ppm/ °C
typical for operation over full rated operating temperature range.
*Pb-free plating product number: TL431K
*Pb-free plating product for SOT-23NS type
number: TL431NSL
ꢀ
ORDERING INFORMATION
Order Number
Pin Assignment
Package
Packing
Normal
Lead Free Plating
TL431K-AB3-R
TL431K-AE3-R
TL431NSL-AE3-R
TL431K-AF5-R
TL431K-S08-R
TL431K-S08-T
TL431K-T92-B
TL431K-T92-K
TL431K-T92-R
1
R
K
R
X
K
K
R
R
R
2
A
R
K
X
A
A
A
A
A
3
K
A
A
K
A
A
K
K
K
4
-
5
-
6
-
7
-
8
-
TL431-AB3-R
TL431-AE3-R
TL431NS-AE3-R
TL431-AF5-R
TL431-S08-R
TL431-S08-T
TL431-T92-B
TL431-T92-K
TL431-T92-R
SOT-89
SOT-23
SOT-23
SOT-25
SOP-8
SOP-8
TO-92
Tape Reel
Tape Reel
Tape Reel
Tape Reel
Tape Reel
Tube
-
-
-
-
-
-
-
-
-
-
R
X
X
-
A
X
X
-
-
-
-
A
A
-
A
A
-
R
R
-
Tape Box
Bulk
-
-
-
-
-
TO-92
-
-
-
-
-
TO-92
Tape Reel
Note: Pin Code: K: Cathode
A: Anode R: Reference X: No Connection
TL431K-AB3-R
(1) B: Tape Box, K: Bulk, R: Tape Reel, T: Tube
(1)Packing Type
(2)Package Type
(2) AB3: SOT-89, AE3: SOT-23, AF5: SOT-25,
S08:SOP-8, T92: TO-92
(3)Lead Plating
(3) K: Lead Free Plating, Blank: Pb/Sn
L : Lead Free Plating, Only for SOT-23NS Type
ꢀ
MARKING (SOT-23/SOT-25)
431N
431
Lead Plating
Lead Plating
For TL431
For TL431NS
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