TSM1011AIDT

Overview

The TSM1011AIDT is a highly integrated voltage reference and controller IC designed for switch-mode power supply (SMPS) applications requiring constant voltage and constant current modes. It integrates a fixed 2.545 V series bandgap voltage reference with two operational amplifiers featuring ORed outputs. The device operates within an input voltage range of 4.5 V to 28 V, supports a maximum output current of 1 mA, and functions across a temperature range of 0°C to +105°C. It utilizes an 8-SOIC surface-mount package.

Feature Summary

• Integrates a fixed 2.545 V series voltage reference with high precision
• Combines two operational amplifiers with ORed outputs for simplified control loop design
• Supports both constant voltage and constant current regulation modes in SMPS topologies

Applications

• Constant voltage and constant current controllers for switch-mode power supplies
• Secondary side control circuits in isolated power converters
• Power management systems requiring integrated voltage referencing and amplification

Procurement Notes

Verify the specific suffix 'AIDT' corresponds to the 8-SOIC package and industrial temperature grade when sourcing. Confirm moisture sensitivity level (MSL 3) requirements against your assembly process capabilities. Ensure the supplier provides valid RoHS compliance documentation consistent with STMicroelectronics standards before finalizing procurement orders.

Selection Notes

Select this component when a single IC solution is needed for both voltage referencing and dual-amplifier control in power supplies. The fixed 2.545 V reference eliminates external resistor networks for biasing. Consider the 4.5 V to 28 V supply range and 1 mA output capability to ensure compatibility with your feedback network design constraints.

Part Context

The TSM1011 belongs to STMicroelectronics' family of integrated solutions for secondary-side SMPS control. Unlike discrete amplifier or reference designs, it consolidates essential analog functions into one package. This integration reduces external component count and simplifies compensation network design compared to using separate voltage references and operational amplifiers.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.