MAX6129BEUK25+T

Overview

The MAX6129BEUK25+T is a micropower, low-dropout bandgap voltage reference manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed output voltage of 2.5V with an initial accuracy of ±1% and a maximum temperature coefficient of 100ppm/°C. The device operates within a supply voltage range of 2.7V to 12.6V and draws a maximum supply current of 5.75µA. It features a low dropout voltage of 200mV at 4mA source current and is stable with capacitive loads up to 10µF without requiring external compensation components.

Feature Summary

• Ultra-low power consumption suitable for battery-operated systems
• Stable operation with capacitive loads up to 10µF without external capacitors
• Low dropout voltage enabling efficient performance near supply limits
• Miniature 5-pin SOT23 package design

Applications

• Battery-powered systems
• Handheld instruments
• Precision power supplies
• A/D and D/A converters

Procurement Notes

Verify the specific suffix 'B' indicates the ±1% accuracy grade and 'EUK' denotes the SOT23-5 package configuration. Confirm the '+T' suffix corresponds to tape-and-reel packaging if required for automated assembly. Ensure the component meets RoHS compliance standards as specified in the manufacturer documentation before final procurement integration.

Selection Notes

Select this component when a fixed 2.5V reference is required with moderate precision (±1%) and ultra-low quiescent current. It is appropriate for designs where board space is limited due to the compact SOT23-5 footprint. Consider the 100ppm/°C temperature coefficient against application thermal requirements and ensure input voltage remains above the minimum dropout threshold during operation.

Part Context

This part belongs to the MAX6129 family of micropower series voltage references. The family offers various output voltages including 2.048V, 3V, 3.3V, 4.096V, and 5V. The 'B' grade variant provides lower initial accuracy compared to the 'A' grade but maintains similar power characteristics. The device utilizes BiCMOS process technology and includes internal compensation for stability.

Replacement Considerations

MAX6129AEUK25+T: Offers higher initial accuracy (±0.4%) and lower temperature coefficient (40ppm/°C) in the same package.