TS2431ILT

Product Overview

The TS2431ILT from STMicroelectronics is a shunt voltage reference integrated circuit with an adjustable output, with a minimum/fixed output voltage of 2.5 V and a maximum output voltage of 24 V. It provides 100 mA output current, has a tolerance of ±2%, and has a temperature coefficient of 100 ppm/°C. Cathode current is 1 mA. It is packaged in a surface-mount TO-236-3, SC-59, SOT-23-3 package and operates over a temperature range of -40°C to 105°C (TA). In power management and voltage reference contexts, it can establish a defined adjustable reference voltage for circuits requiring a reference node.

Key Features

• Shunt reference topology with adjustable output
• 2.5 V minimum/fixed output voltage and 24 V maximum output voltage
• 100 mA output current
• ±2% tolerance and 100 ppm/°C temperature coefficient
• 1 mA cathode current
• Surface-mount SOT-23-3 package (TO-236-3, SC-59)
• Operating temperature range -40°C to 105°C (TA)

Applications

• Establishing an adjustable reference voltage in power supply control and regulation circuits
• Providing a reference node for analog measurement circuits
• Generating a shunt reference in compact surface-mount assemblies

Design & Procurement Notes

The 2.5 V minimum/fixed output and 24 V maximum output define the adjustable reference range; verify that circuit operating points remain within these limits. The ±2% tolerance and 100 ppm/°C temperature coefficient determine the device's accuracy contribution; compare these values with system requirements before selecting the circuit topology. The 100 mA output current and 1 mA cathode current should be considered in load and biasing calculations. The SOT-23-3 surface-mount package and -40°C to 105°C (TA) operating range affect PCB layout, thermal design, and temperature suitability.