Analog Devices Inc./Maxim Integrated MAX6023EBT12+

Overview

MAX6023EBT12+ from Maxim Integrated is a precision, low-power, low-dropout series-mode voltage reference in a 5-bump UCSP package (1.0mm × 1.5mm × 0.3mm), delivering a stable 1.250V output with ±0.2% initial accuracy, 30ppm/°C max temperature coefficient, and 100mV dropout at 500µA load - ideal for high-accuracy ADC/DAC biasing in portable instrumentation.

For engineers reviewing the MAX6023EBT12+ datasheet, MAX6023EBT12+ pinout, MAX6023EBT12+ application, or MAX6023EBT12+ equivalent, key selection criteria include micropower operation (35µA max supply current), no-output-capacitor stability (0–2.2nF load), and ultra-low profile for space-constrained PCBs in battery-powered systems.

Technical Context

The MAX6023EBT12+ uses a proprietary curvature-corrected bandgap core with laser-trimmed thin-film resistors to achieve <30ppm/°C drift and ±0.2% initial accuracy across –40°C to +85°C. Its series-mode architecture enables active sourcing/sinking up to ±500µA while maintaining regulation down to 100mV headroom.

Unlike shunt references, it exhibits only 0.8µA/V supply current variation over VIN (2.5V to 12.6V), eliminating wasted quiescent current. Internally compensated, it requires no external capacitor and remains stable with capacitive loads up to 2.2nF - simplifying layout and reducing BOM count.

Key Specifications

Pinout & Package

Package: 5-bump UCSP (1.0mm × 1.5mm × 0.3mm), wafer-level chip-scale with bumps on bottom surface. Requires JEDEC J-STD-020A reflow profile; hand/wave soldering prohibited.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar voltage reference applications.

Compared with ADR3412ARJZ-R7 and REF3312AIDBVR, the MAX6023EBT12+ uniquely combines 1.25V output, UCSP's 0.3mm profile, and capacitor-free stability - making it the sole option for ultra-thin, high-precision, capacitorless reference designs.

Availability

MAX6023EBT12+ is available at Aetrix Electronics and suitable for hand-held test equipment, battery-operated medical devices, and industrial data acquisition systems requiring stable component supply with guaranteed long-term availability.

Supply support for MAX6023EBT12+ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and power management ICs for demanding industrial, medical, and communications applications.

The MAX6023 family targets ultra-low-power, space-constrained systems needing high-accuracy voltage references - specifically engineered for portable instrumentation, sensor interfaces, and battery-backed data loggers where size, efficiency, and stability are non-negotiable.

FAQ

What is the minimum input voltage required for stable operation of the MAX6023EBT12+?

The MAX6023EBT12+ requires a minimum input voltage of 2.5V for guaranteed operation across its full temperature range (–40°C to +85°C). This is specified in the Selector Guide and Electrical Characteristics table. At 500µA load, the dropout is 100mV, meaning VIN must exceed VOUT (1.25V) by at least that margin - but the 2.5V lower limit ensures proper internal biasing and line regulation performance per datasheet testing conditions. Operating below 2.5V may result in degraded accuracy or failure to regulate.

Does the MAX6023EBT12+ require an external output capacitor for stability?

No, the MAX6023EBT12+ does not require an external output capacitor for stability. It is internally compensated and remains oscillation-free with load capacitances from 0 to 2.2nF, as confirmed in the Features list and Applications Information section. While adding a capacitor (e.g., 100pF) can improve transient response to step load changes, it is optional - a key advantage for space-constrained layouts where every mm² matters. The MAX6023EBT12+ achieves this via proprietary compensation design, unlike many references that mandate minimum C_OUT.

What is the maximum load current the MAX6023EBT12+ can source or sink?

According to the Electrical Characteristics tables and Detailed Description, the MAX6023EBT12+ can source and sink up to ±500µA while maintaining regulation within specifications. The dropout voltage is characterized at 500µA load, and load regulation is tested over ±400µA to ±500µA ranges depending on variant. Exceeding ±500µA may cause output deviation beyond the 0.2% initial accuracy band or increased dropout - verify actual performance under worst-case temperature and supply conditions in final design validation.

How does the supply current of the MAX6023EBT12+ vary with input voltage?

The MAX6023EBT12+ exhibits exceptionally stable supply current: it varies by only 0.8µA per volt of input voltage change (max), as specified in the Electrical Characteristics table. Over its full 2.5V–12.6V input range, total supply current change is ≤8.5µA - negligible compared to its 35µA maximum rating. This near-constant I_Q behavior (unlike shunt references) maximizes battery efficiency in variable-input systems like solar-charged or multi-cell battery packs, where VIN fluctuates significantly during operation.

Is the MAX6023EBT12+ compatible with standard reflow soldering processes?

Yes, the MAX6023EBT12+ is compatible with standard reflow soldering, but only using the JEDEC J-STD-020A profile (IR/VPR or convection reflow, paragraph 7.6, Table 3), with preheating required. The UCSP package has strict thermal limits: bump temperature must not exceed +300°C for more than 10 seconds. Hand soldering and wave soldering are explicitly prohibited per the Absolute Maximum Ratings section. Deviating from the recommended profile risks die damage or solder joint reliability issues due to the chip-scale construction.