Advanced
Monolithic
Systems
FEATURES
•
Trimmed 0.25% Reference
•
Wide Operating Current Range 250µA to 150mA
µ
•
Low Dynamic Output Impedance
•
Low Output Noise
•
Nominal Temperature Range to 85°C
°
•
Temperature-Compensated: 60ppm/°C
°
•
Internal Amplifier with 150mA Capability
AMS3431
PRECISION ADJUSTABLE SHUNT REGULATOR
APPLICATIONS
•
Battery Powered Systems
•
Switching Power Supplies
•
Adjustable Power Supplies
•
Linear Regulators
•
Error Amplifiers
•
Notebook/Personal Computer
•
Monitors/ VCR/ TV
•
Pagers
GENERAL DESCRIPTION
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.
6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
ADMOS [ ADVANCED MONOLITHIC SYSTEMS ]
