TS2431BILT

Overview

The TS2431BILT is an adjustable shunt voltage reference manufactured by STMicroelectronics, housed in a SOT-23-3 surface-mount package. It provides an output voltage range from 2.5 V to 24 V, set via an external resistor divider. The device guarantees an initial accuracy of ±0.5% at 25 °C and operates within an industrial temperature range of -40 °C to +105 °C. Key electrical specifications include a maximum sink current of 100 mA, a minimum operating cathode current of 50 µA, and a temperature coefficient of 100 ppm/°C. The maximum series input voltage is rated at 25 V.

Feature Summary

• Adjustable output voltage capability spanning 2.5 V to 24 V using external resistors
• High precision with guaranteed ±0.5% initial accuracy at 25 °C
• Industrial-grade thermal stability across the -40 °C to +105 °C operating range

Applications

• Portable equipment requiring compact power management solutions
• Battery-powered systems needing precise voltage regulation
• General-purpose voltage reference circuits in space-constrained designs

Procurement Notes

Verify the specific suffix 'IL' corresponds to the required tolerance grade and packaging configuration for your design. Confirm that the SOT-23-3 footprint matches your PCB layout constraints. Ensure the selected component meets the RoHS3 compliance standards required for your target market regulations before finalizing procurement.

Selection Notes

Select this component when a high-precision, low-profile voltage reference is needed for space-limited applications. The adjustable nature allows flexibility in setting reference levels between 2.5 V and 24 V. Consider the 100 ppm/°C temperature coefficient for thermal stability requirements and ensure the circuit can support the minimum 50 µA cathode current for proper regulation.

Part Context

The TS2431 belongs to the TS2431 family of adjustable shunt voltage references from STMicroelectronics. This family is designed as a drop-in replacement for industry-standard devices like the TL431, offering similar functionality in a smaller SOT-23-3 package. The BILT variant specifically denotes the ±0.5% accuracy grade and reel packaging format.

Replacement Considerations

The datasheet indicates performance compatibility with the industry-standard TL431. Verify pinout compatibility and electrical parameter alignment before substituting other shunt references in existing designs.