AMS3431 Datasheet | Advanced Monolithic Systems

FEATURES - Trimmed 0.25% Reference - Wide Operating Current Range 250µ A to 150m A - Low Dynamic Output Impedance - Low Output Noise - Nominal Temperature Range to 85° C - Temperature-pensated: 60ppm/° C - Internal Amplifier with 150m A Capability PRECISION ADJUSTABLE SHUNT REGULATOR APPLICATIONS - Battery Powered Systems - Switching Power Supplies - Adjustable Power Supplies - Linear Regulators - Error Amplifiers - Notebook/Personal puter - 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 CATHODE Bottom View Top View Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140 ABSOLUTE MAXIMUM RATINGS (Note 1) Cathode Voltage (VZ) Continuous Cathode Current (IZ) Reference Input Current (IREF) Junction Temperature (TJ) Storage Temperature Lead Temperature (Soldering, 10sec.) 37V -10m A to +150m A 10m A -40°C to +125°C -65°C to +150°C 265°C Internal Power Dissipation (PD) TO-92 Package SOT-23 Package Thermal Resistance (ϕJA) 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...