AS2431
SEMICONDUCTOR
Precision Adjustable Shunt Reference
Features
Description
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•
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Temperature-compensated: 15 ppm/°C
The AS2431 is a three-terminal adjustable shunt regulator providing a
highly accurate bandgap reference. The adjustable shunt regulator is
ideal for a wide variety of linear applications that can be implemented
using external components to obtain adjustable currents and voltages.
Trimmed bandgap reference
Internal amplifier with 100 mA capability
Multiple temperature ranges
In the standard shunt configuration, the combination of low temperature
coefficient (TC), sharp turn-on characteristics, low output impedance
and programmable output voltage make this precision reference an
excellent error amplifier.
Low frequency dynamic output
impedance: < 450 mΩ
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Low output noise
The AS2431 is a direct replacement for the AS431 in low voltage, low
current applications. It is also available in the very small footprint SOT-
23.
Pin Configuration – Top View
TO-92 (LP)
8L SOIC (8D)
CATHODE
ANODE
ANODE
N/C
REFERENCE
ANODE
ANODE
N/C
1
2
3
4
8
7
6
5
CATHODE
ANODE
REFERENCE
SOT-89 (S)
3L SOT-23 (3VS)
CATHODE
ANODE
CATHODE
ANODE
REFERENCE
REFERENCE
Ordering Information
AS2431 A C 8D N
Packaging Option:
Circuit Type:
= Ammo Pack
= Bulk
A
B
Precision Adjustable
Shunt Regulator
= Tube
T
= Tape and Reel (7" Reel Dia. SOT-23 Only)
= Tape and Reel (13" Reel Dia)
M
N
Bandgap Tolerance:
A = ±0.25%
C = ±0.5%
Package Style:
D = ±1.0%
E = ±2.0%
8D = 8 Pin, Plastic SOIC
LP = TO-92
Temperature Range:
S = SOT-89
=
=
=
=
A
B
C
F
3VS = 3 Pin, SOT-23
0°C to 70°C
0°C to 105°C
–40°C to +85°C
–55°C to +125°C
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