AMC431 Datasheet | AMC

DESCRIPTION ! ! ! # # PRECISION ADJUSTABLE SHUNT VOLTAGE REFERENCE FEATURES The AMC431 is a three-terminal adjustable shunt voltage regulator with specified thermal stability and pin-to-pin patible with the earlier 431 series. The output voltage can be adjusted to any value between VREF and 36V by using two external resistors. The AMC431 offers low output impedance for improved load regulation with a typical output impedance of 200mΩ. Because of the active output circuitry, the AMC431can replace the zener diodes in applications such as switching power supplies, OVP crowbar circuits, references for A/D, D/A converters with improved turn-on characteristics. APPLICATIONS ! ! ! ! ! # # # Initial voltage reference accuracy of 0.5%, 1.0%, and 1.5% Sink current capability from 1m A to 100m A Typical output dynamic impedance less than 200mΩ; Adjustable output voltage from VREF to 36V Available in 3L-TO92 and surface mount SOT89, SOT23 and 8 pin S.O.I.C. packages Low output noise Typical equivalent full range temperature coefficient of 30ppm/°C Pin assignment identical to earlier TL431 series. PACKAGE PIN OUT Voltage Reference Precision shunt regulator High current shunt regulator PWM down converter with reference Voltage monitor CATHODE ANODE VREF CATHODE ANODE ANODE NC VREF ANODE ANODE NC 3-Pin Plastic TO-92 (Top View) VREF ANODE 8-Pin Plastic S.O.I.C. Surface Mount (Top View) CATHODE ANODE CATHODE VREF CATHODE ANODE VREF 3-Pin Plastic SOT-89 Surface Mount (Top View) (Note 1) 3-Pin Plastic SOT-23 Surface Mount (Top View) (Note 2) 3-Pin Plastic SOT-23 Surface Mount (Top View) ORDER INFORMATION TA (°C) Initial Tolerance SOIC 8-pin -- TO-92 3-pin SOT-89 3-pin -- SOT-23 3-pin -- SOT-23 3-pin -- 1.5% AMC431CLP AMC431LP 0 to...