TSM1012AIST

Overview

The TSM1012AIST is a series voltage reference IC manufactured by STMicroelectronics, housed in an 8-MiniSO surface-mount package. It provides a fixed output voltage of 1.25V with a tolerance of ±0.5%. The device operates within a supply voltage range of 4.5V to 28V and draws a maximum quiescent current of 2.5 mA. It is designed for applications requiring stable voltage references, such as battery chargers and adapters, functioning effectively across an operating temperature range of -40°C to +85°C.

Feature Summary

• Provides a fixed 1.25V output voltage with high precision
• Operates over a wide input supply voltage range
• Low consumption design suitable for portable applications

Applications

• Battery charger controllers
• Power adapter circuits
• Voltage reference for SMPS constant voltage modes

Procurement Notes

Verify the specific suffix 'AIST' against the official STMicroelectronics datasheet to confirm pinout and tolerance specifications. Note that this component may be listed as obsolete or no longer manufactured; check current availability status through authorized distributors before finalizing procurement plans.

Selection Notes

Select this component when a precise 1.25V reference is required in space-constrained designs using MiniSO packages. Ensure the application supply voltage remains within the 4.5V to 28V operational limits. Consider thermal performance if operating near the upper temperature extremes of the specified range.

Part Context

This part belongs to the TSM1012 family of highly integrated solutions for switch-mode power supplies (SMPS). It supports both constant voltage and constant current modes in charging applications. The AIST variant specifically denotes the 8-pin MiniSO package configuration used for surface-mount assembly.

Replacement Considerations

The TSM1013AIST is a documented related part number within the same product family from STMicroelectronics. Verify electrical compatibility and pinout alignment before substitution.