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AS432
1.24V Precision Adjustable Shunt ReferenceSEMICONDUCTOR
Features
• Temperature-compensated: 50 ppm/°C
• 0.25% to 2.0% bandgap offered
• Internal amplifier with 150 mA capability
• Multiple temperature ranges
• Low frequency dynamic output
impedance: < 150 mΩ
• Low output noise
Description
The AS432 is a three terminal adjustable shunt regulator utilizing an
accurate 1.24V bandgap reference. The AS432 is functionally similar to
an AS431 except for its lower reference voltage, making it usable in a
wide variety of low voltage applications.
Because of its robust bipolar technology, the AS432 handles a wide
range of current, and holds off more than 18V so its use is not limited to
low power, low voltage systems. Significant care has been taken to pro-
vide adequate AC bandwidth to allow the AS432 as an amplifier in con-
trol systems and power electronics.
Pin Configuration — Top view
Ordering Information
CATHODE
TO-92 (LP) 8L SOIC (8D)
ANODE
REFERENCE
REFERENCE
ANODE
ANODE
N/C
CATHODE
ANODE
ANODE
N/C
SOT-89 (S)
CATHODE
ANODE
REFERENCE
1
2
3
4
8
7
6
5
5L SOT-23 (5VS)
ANODE
REFERENCE
N/C
N/C
CATHODE
3L SOT-23 (3VS)
CATHODE
REFERENCE
ANODE
Circuit Type:
1.24V Precision Adjustable
Shunt Regulator
Bandgap Tolerance:
A = ±0.25%
C = ±0.5%
D = ±1.0%
E = ±2.0%
Temperature Range:
A = 0°C to 70°C
B = 0°C to 105°C
C = –40°C to 85°C
F = –55°C to 125°C
Packaging Option:
A
B
T
M
N
Package Style:
8D
5VS
3VS
S
LP
= Ammo Pack
= Bulk
= Tube
= Tape and Reel (7" Reel Dia, SOT-23 Only)
= Tape and Reel (13" Reel Dia)
= 8 Pin, Plastic SOIC
= 5 Pin, SOT-23
= 3 Pin, SOT-23
= SOT-89
= TO-92
AS432 A C 8D N