Analog Devices Inc./Maxim Integrated MAX8882EUTAQ+T

Overview

MAX8882EUTAQ+T from Maxim Integrated is a dual low-noise, low-dropout linear regulator IC with fixed 3.3V and 2.5V outputs, delivering up to 160mA per channel from a 2.5V–6.5V input. It features 72mV dropout at 80mA, 40μVRMS output noise (with BP bypass), and 165μA quiescent current - designed for power-sensitive portable electronics requiring clean, independent dual-rail supplies.

For engineers reviewing the MAX8882EUTAQ+T datasheet, MAX8882EUTAQ+T pinout, MAX8882EUTAQ+T application, or MAX8882EUTAQ+T equivalent, key selection criteria include verified dual-output voltage pairing (3.3V/2.5V), SOT23-6 package compatibility, low-noise performance with BP pin support, thermal shutdown behavior, and independent shutdown architecture versus dual-shutdown alternatives.

Technical Context

The MAX8882EUTAQ+T integrates two P-channel MOSFET pass transistors (1Ω R_DS(ON)) enabling load-proportional dropout and eliminating base-drive current loss. Its single SHDN pin controls both LDOs simultaneously, while the BP (bypass) pin connects to an external 0.01μF capacitor to filter reference noise - directly reducing output voltage noise to 40μVRMS (10Hz–100kHz).

It operates across –40°C to +85°C with thermal shutdown activation at +160°C (10°C hysteresis) and includes short-circuit protection with 160mA guaranteed current limit per output. Supply current remains stable at 165μA (no load, VIN = 6.5V) and rises only marginally under 80mA load - independent of dropout condition.

Key Specifications

Pinout & Package

The MAX8882EUTAQ+T is housed in a RoHS-compliant 6-pin SOT23-6 package (JEDEC MO-178AA), with exposed pad not electrically connected. Thermal performance relies on soldering the GND pin to a large copper area for heatsinking.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX8883EUTAQ+T, the MAX8882EUTAQ+T simplifies system-level enable logic with one SHDN signal, while retaining identical output accuracy, thermal protection, and noise performance - making it optimal for space- and complexity-constrained designs. Against TCS2102-3325DBTR, MAX8882EUTAQ+T provides 32% lower dropout and 5× lower output noise, justifying its use in high-fidelity portable imaging or communication systems.

Availability

MAX8882EUTAQ+T is available at Aetrix Electronics and suitable for cellular telephones, digital cameras, and handheld instruments requiring stable component supply, long-term lifecycle support, and guaranteed RoHS-compliant sourcing.

Supply support for MAX8882EUTAQ+T 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 industrial, communications, and consumer applications.

The MAX8882/MAX8883 product line was engineered for battery-powered portable electronics needing compact, low-noise, dual-rail LDO regulation - emphasizing minimal dropout, ultra-low quiescent current, and integrated thermal protection.

FAQ

What output voltages does the MAX8882EUTAQ+T provide?

The MAX8882EUTAQ+T provides fixed 3.3V on OUTA and 2.5V on OUTB. These values are factory-trimmed and specified over temperature (–40°C to +85°C) with ±2% accuracy at 1mA load and ±3% over full 100μA–160mA range. No external resistors are required to set these outputs - the MAX8882EUTAQ+T is a fully integrated dual-LDO solution.

How does the BP pin affect noise performance of the MAX8882EUTAQ+T?

The BP pin on the MAX8882EUTAQ+T connects to an internal reference filter node. When a 0.01μF ceramic capacitor is placed between BP and GND, it reduces the internal reference noise, enabling the MAX8882EUTAQ+T to achieve 40μVRMS output noise (10Hz–100kHz). Without this capacitor, noise increases significantly - the BP pin is mandatory for meeting the specified low-noise performance of the MAX8882EUTAQ+T.

What is the maximum continuous output current per channel for the MAX8882EUTAQ+T?

The MAX8882EUTAQ+T guarantees 160mA continuous output current per channel (OUTA and OUTB) under all operating conditions. Electrical Characteristics specify minimum 160mA current limit, with typical trip at 550mA during short-circuit events. This rating holds across the full input range (2.5V–6.5V) and temperature range (–40°C to +85°C), provided thermal limits are respected via proper GND pad layout.

Does the MAX8882EUTAQ+T support independent shutdown of each output?

No - the MAX8882EUTAQ+T uses a single SHDN pin to control both LDOs simultaneously. Driving SHDN low disables both OUTA and OUTB and reduces total supply current to ≤1μA. For independent control, the pin-compatible MAX8883EUTAQ+T is available, featuring separate SHDNA and SHDNB inputs. The MAX8882EUTAQ+T's unified shutdown simplifies enable logic in systems where synchronized rail sequencing is acceptable.

What thermal protection features are built into the MAX8882EUTAQ+T?

The MAX8882EUTAQ+T includes thermal-overload protection that activates at +160°C junction temperature, turning off both pass transistors. After shutdown, the device remains off until junction temperature falls by 10°C (to +150°C), then automatically resumes regulation. This hysteresis prevents oscillation during sustained overload. The GND pin serves as the primary thermal path - effective cooling requires connection to a large PCB copper area, as specified in the MAX8882EUTAQ+T thermal design guidelines.