MAX6035BAUR50+T

Overview

The MAX6035BAUR50+T is a high-voltage, precision micropower voltage reference in a 3-pin SOT23 package. It provides a fixed 5.0V output with a maximum initial accuracy of ±0.5% and a maximum temperature coefficient of 65ppm/°C over the -40°C to +85°C range. The device operates from a supply voltage up to 33V, drawing a typical quiescent current of 73µA. It can source 10mA and sink 2mA of load current without requiring external compensation capacitors or series resistors.

Feature Summary

• Proprietary curvature-correction circuit ensures low temperature drift
• Laser-trimmed thin-film resistors provide high initial accuracy
• Internally compensated design eliminates need for external capacitors
• Supply-independent operation maximizes efficiency in battery systems

Applications

• Li+ Battery Chargers
• 12-Bit A/D and D/A Converters
• Digital Multimeters
• Portable Data-Acquisition Systems

Procurement Notes

Verify the suffix 'T' indicates tape-and-reel packaging when ordering. Confirm the '+T' designation aligns with lead-free manufacturing standards required by your assembly process. Ensure the BAUR50 variant matches the specific 5.0V output and ±0.5% accuracy requirements for your design. Cross-reference the SOT23-3 footprint with your PCB layout guidelines.

Selection Notes

Select this part for applications requiring a stable 5.0V reference with minimal board space due to the compact SOT23 package. Choose the BAUR50 variant if ±0.5% initial accuracy is sufficient, as it offers lower cost than the AAUR50 (±0.2%). Consider the 65ppm/°C tempco limit for wide temperature ranges. This series-mode reference is suitable where shunt references would waste power through biasing resistors.

Part Context

This component belongs to the MAX6035 family of high-supply-voltage precision voltage references. It serves as an upgrade to industry-standard devices like the REF02 and REF43, offering significantly lower power consumption and a smaller form factor. The family includes options for 2.5V, 3.0V, and 5.0V outputs with varying accuracy grades.

Replacement Considerations

Public confirmed substitutes include MAX6035AAUR50-T for higher accuracy (±0.2%) and MAX6035ESA50 for 8-pin SO packages.