MAX6145EUR+T

Overview

The MAX6145EUR+T is a low-dropout, micropower, three-terminal voltage reference providing a fixed 4.5V output. It operates within a supply voltage range of 4.7V to 12.6V and features an initial accuracy of ±1%. The device exhibits a typical temperature coefficient of 15ppm/°C, guaranteed under 50ppm/°C. Quiescent supply current is typically 79µA at +25°C, rising to 130µA across the full operating temperature range. It is housed in a compact 3-pin SOT-23 package.

Feature Summary

• Low dropout voltage capability of 200mV optimizes operation for 3V and 5V systems
• Micropower consumption with supply current virtually independent of input voltage variations
• Stable performance across all capacitive loads up to 10nF without requiring output capacitance

Applications

• Battery-powered systems
• Portable and hand-held equipment
• Data-acquisition systems
• Instrumentation and process control

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and RoHS compliance status. Ensure the component matches the required electrical specifications for your design. Confirm availability through authorized distributors as stock levels fluctuate. Check for any recent revisions or obsolescence notices from Analog Devices before finalizing procurement plans.

Selection Notes

Select this component when a stable 4.5V reference is needed in space-constrained designs. The SOT-23 package offers a small footprint suitable for portable applications. Consider the 15ppm/°C temperature coefficient for precision requirements. Verify that the minimum supply voltage of 4.7V aligns with your system's power rails to ensure proper regulation.

Part Context

This part belongs to the MAX61xx family of low-cost, low-dropout voltage references manufactured by Analog Devices (Maxim Integrated). The family includes variants with different fixed output voltages such as 2.5V, 4.096V, and 5.0V. These devices share common architectural features like micropower operation and stability with capacitive loads, designed primarily for battery-powered and portable electronics.

Replacement Considerations

Compatible substitutes within the same family include MAX6125 (2.5V), MAX6141 (4.096V), and MAX6150 (5.0V). All share identical pinouts and package options but differ in output voltage. Ensure the replacement provides the correct voltage level for your circuit application.