The AMS3431 is a three-terminal adjustable shunt regulator with guaranteed temperature stability over the entire range of
operation. The output voltage can be set to any value between 2.5V (VREF) and 36V by adding two external resistors. Due to
the sharp turn-on characteristics this device is an excellent replacement for zener diodes in many applications.
AMS3431 is available in the space saving SOT-23 package and in the TO-92 package.
ORDERING INFORMATION:
TOL.
±0.25%
±0.5%
±1.0%
PACKAGE TYPE
TO-92
AMS3431AN
AMS3431BN
AMS3431CN
3 LEAD SOT-23
AMS3431AM
AMS3431BM
AMS3431CM
OPERATING
TEMPERATURE RANGE
-40 to +85° C
-40 to +85° C
-40 to +85° C
PIN CONNECTIONS
TO-92
Plastic Package (N)
3L SOT-23
(M)
ANODE
1
2
3
CATHODE
ANODE
REF
CATHODE
REF
Bottom View
Top View
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
Fax (925) 443-0723
AMS3431
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Cathode Voltage (V
Z
)
Continuous Cathode Current (I
Z
)
Reference Input Current (I
REF
)
Junction Temperature (T
J
)
Storage Temperature
Lead Temperature (Soldering, 25sec.)
37V
-10mA to +150mA
10mA
-40°C to +125°C
-65°C to +150°C
265°C
Internal Power Dissipation (P
D
)
TO-92 Package
SOT-23 Package
Thermal Resistance (ϕ
JA
)
TO-92 Package
SOT-23 Package
0.78W
0.28W
160°C/W
410°C/W
Note 1:
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the
device is intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical
Characteristics
.
The guaranteed specifications apply only for the test conditions listed.
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