Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
Advanced AMS3431
Monolithic PRECISION ADJUSTABLE SHUNT REGULATOR
Systems
FEATURES APPLICATIONS
• Trimmed 0.25% Reference • Battery Powered Systems
• Wide Operating Current Range 250 µA to 150mA • Switching Power Supplies
• Low Dynamic Output Impedance • Adjustable Power Supplies
• Low Output Noise • Linear Regulators
• Nominal Temperature Range to 85 °C • Error Amplifiers
• Temperature-Compensated: 60ppm/ °C • Notebook/Personal Computer
• Internal Amplifier with 150mA Capability • 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. PACKAGE TYPE OPERATING
TO-92 3 LEAD SOT-23 TEMPERATURE RANGE
±0.25% AMS3431AN AMS3431AM -40 to +85 ° C
±0.5% AMS3431BN AMS3431BM -40 to +85 ° C
±1.0% AMS3431CN AMS3431CM -40 to +85 ° C
PIN CONNECTIONS
TO-92 3L SOT-23
Plastic Package (N) (M)
1 2 3
CATHODE
ANODE
REF
CATHODE REF
ANODE
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