AS431L
Low Voltage Precision
Adjustable Shunt Regulator
FEATURES
APPLICATIONS
• Battery Operating Equipment
• Tight Tolerance.................................................. 0.5% @ 10mA
• Wide Operating Range..................................... 1mA to 100mA
• Low Extended Temperature Range ....................0°C to 105°C
• Low Temperature Coefficient .................................30 ppm/°C
• Offered in TO-92, SOT-89, SOT-23-3 and SO-8
• Improved replacement in performance of AS431 & TL431
• Low Cost Solution
•
Adjustable Supplies
• Switching Power Supplies
• Error Amplifiers
•
•
Single Supply Amplifier
Monitors/ VCR/ TV
• Personal Computers
PRODUCT DESCRIPTION
The AS431L is a 3-terminal Adjustable Shunt Voltage Regulator providing a highly accurate bandgap reference. AS431L acts as an
open-loop error amplifier with a 2.5V temperature compensation reference. The AS431L thermal stability, wide operating current
(100mA) and temperature range (0°C to 105°C) makes it suitable for all variety of applications that are looking for a low cost solution
with high performance.
The output voltage may be adjusted to any value between VREF and 20V with 2 external resistors. The AS431L is operating in full
industrial temperature range of 0°C to 105°C. The AS431L is available in TO-92, SOT-89, SOT-23-3 and SO-8 packages.
ORDERING INFORMATION
PIN CONNECTIONS
Part Number
AS431LXN
Temperature Range Package Type
0°C to 105°C
0°C to 105°C
TO-92
8-Pin Surface Mount (S)
TO-92 (N)
AS431LXM1
SOT-89
AS431LXS
0°C to 105°C
SO-8
SOT-23-3
1
2
3
1
2
3
4
8
7
6
5
REF
CATHODE
ANODE
AS431LXM
0°C to 105°C
X= Tolerance (A = 0.5%; Blank = 1%; C = 2%)
ANODE
ANODE
AS431
ANODE
N/C
REF
CATHODE
ANODE
CATHODE (K)
N/C
Bottom View
Top View
REFERENCE
(R)
+
-
SOT-23-3 (M)
SOT-89 (M1)
AS431
ANODE
1
AS431
2.5V
1
3
2
3
2
CATHODE
REF
N/C
Top View
CATHODE
ANODE
ANODE (A)
Top View
Rev. 10/5/00