LM4041BIM3-1.2-T

Overview

The LM4041BIM3-1.2-T is a precision micropower shunt voltage reference manufactured by Analog Devices / Maxim Integrated. It provides a fixed reverse breakdown voltage of 1.225V with an initial accuracy of 0.2% and a maximum temperature coefficient of 100ppm/°C. The device operates within a wide current range from 60µA to 12mA and features low dynamic impedance. It is housed in a subminiature 3-pin SOT23 surface-mount package and is guaranteed to function over the industrial temperature range of -40°C to +85°C.

Feature Summary

• Ultra-small 3-pin SOT23 surface-mount package for space-critical designs
• Laser-trimmed resistors ensure precise initial accuracy without external capacitors
• Stable operation with any capacitive load, eliminating the need for output stabilization components

Applications

• Portable, battery-powered equipment
• Notebook computers
• Cell phones
• Industrial process controls

Procurement Notes

Verify that the ordering suffix matches the required specifications. Confirm the package type corresponds to the design requirements. Ensure the temperature grade aligns with the operational environment. Check RoHS compliance status if necessary. Validate the manufacturer identification against official documentation.

Selection Notes

Select this component when a compact footprint is essential alongside high precision. The 0.2% accuracy grade offers a balance between cost and performance. Verify that the operating current remains within the specified 60µA to 12mA range. Consider the thermal characteristics for high-temperature environments.

Part Context

This part belongs to the LM4041 series of improved precision micropower shunt voltage references. The series includes various grades (A, B, C, D) offering different accuracy levels and temperature coefficients. The 'M' in the model indicates the SOT23-3 package variant, while the 'B' denotes the specific 0.2% accuracy grade.

Replacement Considerations

LM4041AIM3-1.2+T: Offers higher 0.1% accuracy but same package and temperature range. LM4041CIM3-1.2+T: Provides lower 0.5% accuracy at potentially reduced cost. LM4041DIM3-1.2+T: Features 1.0% accuracy and higher temperature coefficient.