LP431 Datasheet | HTC KOREA

FEATURES - Programmable Output Voltage to 36V - Extended Cathode Current Range 80µA to 100m A - Low (Typ. 0.08Ω) Dynamic Output Impedance - Adjustable Output Voltage - Fast Turn-on Response - Low Output Noise - Excellent Temperature Coefficient 25ppm/°C - Available in SOT-23-3L Package SOT-23 PKG APPLICATIONS - Secondary Side Regulation in Flyback SMPS - Industrial, puting, Consumer and Portables - Adjustable Voltage and Current Referencing - Power Management - Power Isolation - Zener Replacement Pin 1. REFERENCE 2. ANODE 3. CATHODE ORDERING INFORMATION Device Package LP431Gx SF SOT-23-3L - Refer to the ordering information for the details. DESCRIPTION The LP431 is a three-terminal adjustable shunt regulator with a specified thermal stability. The output voltage may be set to any value between VREF and 36V with two external resistors. The active output circuitry provides a very sharp turn-on characteristic making these devices an excellent replacement for Zener diodes in many applications, such as on board regulation, adjustable power supplies, and switching power supplies. ABSOLUTE MAXIMUM RATINGS (Full operating ambient temperature range applies unless otherwise noted.) PARAMETER SYMBOL Cathode Voltage Cathode Current Range Reference Input Current Range Junction Temperature Range Operating Temperature Range Storage Temperature Range VKA IKA IREF TJ TOPR TSTG MIN. -40 -40 -65 MAX. 40 150 10 150 125 150 UNIT V m A m A °C °C...