MIC4043BM4 TR

Overview

The MIC4043BM4 TR is a low-voltage secondary-side shunt regulator manufactured by Microchip Technology. It provides a nominal output voltage of 1.245 V with a tolerance range between 1.2201 V and 1.2699 V. The device operates within a supply voltage range of 1.8 V to 10 V and supports an industrial temperature range from -40 °C to +85 °C. It is housed in a TSSOP-4 package, featuring a maximum height of 1.12 mm and a length of 2.86 mm.

Feature Summary

• Functions as a low-voltage secondary-side shunt regulator for precise voltage reference applications.
• Operates efficiently within a wide supply voltage range starting from 1.8 V.
• Designed for industrial environments with extended temperature capability.

Applications

• Secondary-side regulation in power supply circuits
• Voltage reference sources for analog-to-digital converters
• Battery-powered systems requiring stable low-voltage references

Procurement Notes

Verify the specific suffix 'TR' indicates tape and reel packaging when ordering. Confirm the 'B' grade designation matches the required voltage tolerance specifications for your design. Ensure the TSSOP-4 footprint aligns with your PCB layout requirements. Cross-reference the manufacturer's latest datasheet for any updates on environmental compliance or pinout configurations before finalizing procurement.

Selection Notes

Select this component when a precise 1.245 V reference is needed in space-constrained designs. The TSSOP-4 package offers a compact solution for surface-mount applications. Consider the 1.8 V minimum operating voltage to ensure compatibility with low-power system architectures. Verify that the shunt regulator topology suits the current handling requirements of the target circuit.

Part Context

This part belongs to Microchip's family of low-voltage shunt regulators. These devices are engineered to provide stable voltage references in compact packages. The MIC4043 series is designed for applications where space and low voltage operation are critical constraints.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Microchip technical support for verified alternatives if this specific variant is unavailable.