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UC39431B Datasheet

Precision Adjustable Shunt Regulator

Manufacturer: Unitrode

This datasheet includes multiple variants, all published together in a single manufacturer document.

UC39431B Overview

The UC39431 is an adjustable shunt voltage regulator with 100mA sink capability. The architecture, prised of an error amplifier and transconductance amplifier, gives the user separate control of the small signal error voltage frequency response along with a fixed linear transconductance. A minimum 3MHz gain bandwidth product for both the error and transconductance amplifiers assures fast response.

UC39431B Key Features

  • Multiple On-Chip Programmable
  • 0.4% Initial Accuracy
  • 0.7% Overall Reference Tolerance
  • 2.2V to 36.0V Operating Supply Voltage and User Programmable Reference
  • 36.0V Operating Supply Voltage
  • Reference Accuracy Maintained For Entire Range of Supply Voltage
  • Superior Accuracy and Easier pensation for Optoisolator Application
  • Improved Architecture Provides a Known Linear Transconductance with a +5% Typical Tolerance

UC39431B Distributor