Analog Devices Inc./Maxim Integrated MAX8883EUTAA

Overview

MAX8883EUTAA from Maxim Integrated is a dual low-noise, low-dropout linear regulator IC delivering two independent 160mA LDO outputs with fixed 2.85V/2.85V outputs in a 6-pin SOT23 package. It features independent logic-controlled shutdown inputs (SHDNA/SHDNB), 72mV dropout at 80mA, 165µA quiescent current (both LDOs on), and 320µVRMS output noise - optimized for battery-powered portable electronics requiring clean, sequenced power rails.

For engineers reviewing the MAX8883EUTAA datasheet, MAX8883EUTAA pinout, MAX8883EUTAA application, or MAX8883EUTAA equivalent, this page provides verified functional identity, validated pin roles, confirmed dual-LDO timing and sequencing behavior, real-world noise and PSRR performance data, and engineer-selected alternatives for portable power management design.

Technical Context

The MAX8883EUTAA integrates two independent P-channel MOSFET-based LDO regulators sharing a common input and ground, each with dedicated shutdown control (SHDNA/SHDNB) enabling selective or simultaneous rail disable. Its internal architecture eliminates base-drive current loss, maintaining constant 165µA supply current across load, temperature, and dropout conditions.

Each regulator delivers fixed 2.85V output with ±2% accuracy over –40°C to +85°C, supports 2.2µF ceramic output capacitors for stability up to 80mA, and achieves 60dB PSRR at 100Hz. Channel-to-channel isolation exceeds 60dB above 10kHz, minimizing crosstalk between sensitive analog and digital power domains.

Key Specifications

Pinout & Package

MAX8883EUTAA is housed in a thermally enhanced 6-pin SOT23-6 package (JEDEC MO-178AA). The GND pin serves as both electrical reference and primary thermal path - requires soldering to a large PCB copper area or ground plane for reliable 160mA operation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-LDO power management applications.

Compared with MAX8883EUTAA, XC6223D282MR-G offers lower noise but sacrifices independent shutdown flexibility, while ADP5060ACBZ-2-R7 provides higher performance and monitoring features at the cost of board area and compatibility with legacy SOT23 layouts.

Availability

MAX8883EUTAA is available at Aetrix Electronics and suitable for cellular telephones, portable medical instruments, digital cameras, and handheld industrial testers requiring stable component supply with guaranteed long-term sourcing.

Supply support for MAX8883EUTAA 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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for demanding industrial, automotive, and portable applications.

The MAX8882/MAX8883 product line was designed specifically for battery-powered portable electronics needing dual, low-noise, low-quiescent-current LDOs in ultra-small footprints - targeting extended runtime and clean power in space-constrained devices.

FAQ

What output voltages does the MAX8883EUTAA provide?

The MAX8883EUTAA provides two fixed 2.85V outputs (OUTA and OUTB), as indicated by the "JJ" suffix in its ordering code. This configuration is factory-trimmed and does not require external resistors. Each output delivers up to 160mA with ±2% accuracy across –40°C to +85°C, making MAX8883EUTAA ideal for applications requiring matched dual rails without calibration overhead.

How does the MAX8883EUTAA differ from the MAX8882EUTAA in pin functionality?

The MAX8883EUTAA replaces the single SHDN pin of the MAX8882EUTAA with two independent shutdown inputs: SHDNA (pin 3) and SHDNB (pin 4). This allows selective disabling of OUTA or OUTB - a capability absent in MAX8882EUTAA, which can only shut down both regulators simultaneously. MAX8883EUTAA also omits the BP (bypass) pin, resulting in higher output noise (320µVRMS vs. 40µVRMS for MAX8882).

What is the minimum input voltage required for the MAX8883EUTAA to maintain regulation at full load?

At 80mA load per channel, the MAX8883EUTAA requires a minimum input voltage of 2.92V (2.85V + 72mV dropout) to maintain regulation. For full 160mA per channel, the dropout rises to 144mV (per datasheet max), requiring VIN ≥ 2.994V. Below these thresholds, the device enters dropout - still functional but with reduced PSRR and increased noise. MAX8883EUTAA's P-channel architecture ensures stable operation down to VIN = VOUT + dropout across temperature.

Can the MAX8883EUTAA be used with ceramic output capacitors, and what value is recommended?

Yes, the MAX8883EUTAA is optimized for ceramic output capacitors. A minimum of 2.2µF (X5R/X7R dielectric, ESR < 0.5Ω) is required per output for stability across –40°C to +85°C and up to 80mA load. For full 160mA operation or improved transient response, 4.7µF–10µF is recommended. Z5U/Y5V ceramics are discouraged due to capacitance drift at temperature extremes - using them may cause instability below –10°C unless capacitance is increased to ≥4.7µF.

Does the MAX8883EUTAA include thermal protection, and how does it behave under overload?

Yes, the MAX8883EUTAA includes thermal-overload protection that activates at +160°C junction temperature. When triggered, it disables both LDOs until the die cools by 10°C (hysteresis), then automatically resumes regulation. This results in pulsed output during continuous overload - protecting the device without requiring external circuitry. For reliable continuous operation, keep junction temperature below +150°C via adequate PCB copper area on the GND pin, as specified in the MAX8883EUTAA thermal design guidelines.