AS431 View Datasheet(PDF) - Astec Semiconductor => Silicon Link
Part Name
Description
Manufacturer
AS431 Datasheet PDF : 8 Pages
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SEMICONDUCTOR
AS431
Precision Adjustable Shunt Reference
Features
¥ Temperature-compensated: 30 ppm/¡C
¥ Trimmed bandgap reference
¥ Internal amplifier with 150 mA capability
¥ Multiple temperature ranges
¥ Low frequency dynamic output impedance:
< 150 m½
¥ Low output noise
¥ Robust ESD protection
Pin Configuration Ñ Top view
TO-92 (LP)
CATHODE
ANODE
REFERENCE
Description
The AS431 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 compo-
nents to obtain adjustable currents and voltages.
In the standard shunt configuration, the combination of low temperature coef-
ficient (TC), sharp turn-on characteristics, low output impedance and pro-
grammable output voltage make this precision reference a perfect zener diode
replacement.
The AS431 precision adjustable shunt reference is offered in four bandgap tol-
erances: ±0.25%, ±0.5%, ±1.0%, and ±2.0%.
CATHODE 1
ANODE 2
ANODE 3
N/C 4
SOIC (D)
8 REFERENCE
7 ANODE
6 ANODE
5 N/C
SOT-23/5L (DBV)
N/C
ANODE
N/C
CATHODE
REFERENCE
Ordering Information
Circuit Type:
Precision Adjustable
Shunt Regulator
Temperature Range:
A = 0°C to 70°C
B = 0°C to 105°C
C = –40°C to +85°C
Bandgap Tolerance:
2 = ±2%
1 = ±1%
R5 = ±0.5%
R25 = ±0.25%
ASTEC Semiconductor
AS431 A 2 D 7
1
SOT-89 (S)
CATHODE
ANODE
REFERENCE
Packaging Option:
A = Ammo Pack
B = Bulk
T = Tube
7 = Tape and Reel (7" Reel Dia)
13 = Tape and Reel (13" Reel Dia)
Package Style:
D = SOIC
DBV = SOT-23/5L
LP = TO-92
S = SOT-89
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