Analog Devices Inc./Maxim Integrated MAX8883EUTJJ-T

Overview

MAX8883EUTJJ-T from Maxim Integrated is a dual low-noise, low-dropout linear regulator IC delivering two independent 2.85V outputs at up to 160mA each, operating from +2.5V to +6.5V input, with 72mV dropout at 80mA load and 165µA quiescent current (both LDOs active), designed for battery-powered µP/DSP core/IO power in portable electronics.

For engineers reviewing the MAX8883EUTJJ-T datasheet, MAX8883EUTJJ-T pinout, MAX8883EUTJJ-T application, or MAX8883EUTJJ-T equivalent, this device offers independently controlled shutdown inputs (SHDNA/SHDNB), 62dB PSRR at 100Hz, 320µVRMS output noise, thermal shutdown at +160°C, and SOT23-6 packaging optimized for space-constrained handheld instruments and digital cameras.

Technical Context

The MAX8883EUTJJ-T integrates two P-channel MOSFET pass transistors (1Ω R_DS(ON)) enabling load-proportional dropout voltage and eliminating base-drive current loss typical of PNP-based regulators. Its dual independent shutdown logic allows selective regulation of OUTA and OUTB without affecting the internal reference when only one channel is disabled.

Each LDO features independent current limiting (160mA min guaranteed), thermal overload protection with 10°C hysteresis, and channel-to-channel isolation >80dB at 10kHz. The BP pin is absent-unlike the MAX8882-so noise reduction relies solely on output capacitor selection (2.2µF ceramic) and inherent PSRR performance.

Key Specifications

Pinout & Package

MAX8883EUTJJ-T is housed in a 6-pin SOT23-6 package (JEDEC MO-178AA), with exposed pad not electrically connected; GND pin serves as primary thermal path and must be soldered to ≥25mm² copper area for rated power dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX8883EUTJJ-T, the XC6223D287MR-G lacks dual-channel integration and independent control, while the ADP5060ACBZ-2-R7 offers higher performance at the expense of footprint and cost - making MAX8883EUTJJ-T optimal for space- and current-sensitive dual-rail battery systems.

Availability

MAX8883EUTJJ-T is available at Aetrix Electronics and suitable for cellular handsets, digital cameras, hand-held instruments, and notebook subsystems requiring stable component supply with tight voltage tolerance and low-noise dual-rail generation.

Supply support for MAX8883EUTJJ-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) designs high-performance analog and mixed-signal ICs for power management, sensing, and communication in constrained environments.

The MAX8882/MAX8883 product line delivers dual low-noise LDOs in ultra-small packages specifically for portable battery-powered systems where board space, quiescent current, and output cleanliness are critical.

FAQ

What is the output voltage tolerance of MAX8883EUTJJ-T over temperature?

The MAX8883EUTJJ-T guarantees ±2% output voltage accuracy over the full operating temperature range of -40°C to +85°C, with typical deviation of ±1% at +25°C. This tolerance is maintained across load currents from 100µA to 160mA per channel and input voltages from +2.5V to +6.5V. The 2.85V nominal output is laser-trimmed at wafer test, ensuring consistent performance in production units of MAX8883EUTJJ-T without requiring external calibration.

Does MAX8883EUTJJ-T support independent enable timing for OUTA and OUTB?

Yes, MAX8883EUTJJ-T provides fully independent enable control via SHDNA (pin 3) and SHDNB (pin 4), both active-low inputs. Driving SHDNA low disables only OUTA while keeping OUTB and the internal reference active; similarly, SHDNB controls OUTB alone. This allows precise power sequencing - for example, enabling OUTA first to power a controller, then OUTB after initialization - a capability not present in the single-shutdown MAX8882 series.

What is the recommended input and output capacitor configuration for MAX8883EUTJJ-T?

Maxim specifies 2.2µF X5R or X7R ceramic capacitors on both IN (pin 5) and each output (OUTA/pin 6, OUTB/pin 1), with ESR <0.5Ω. Input capacitance improves line-transient response and supply-noise rejection; output capacitance ensures stability across -40°C to +85°C and supports load steps up to 160mA. Avoid Z5U/Y5V dielectrics below -10°C - they require ≥4.7µF for stability. No BP pin exists on MAX8883EUTJJ-T, so noise filtering relies entirely on capacitor selection and PSRR.

How does the thermal shutdown behavior of MAX8883EUTJJ-T affect system reliability?

MAX8883EUTJJ-T activates thermal shutdown at +160°C junction temperature and remains off until junction cools by 10°C (to +150°C), then automatically resumes regulation. This hysteresis prevents oscillation during marginal thermal conditions. Under continuous overload, the device enters pulsed operation - protecting itself without latch-up. For reliable long-term use, PCB layout must provide adequate thermal relief via GND pad connection to ≥25mm² copper, as exceeding +150°C junction temperature risks accelerated aging even below shutdown threshold.

Can MAX8883EUTJJ-T be used with input voltages below 2.5V?

No, MAX8883EUTJJ-T has an absolute minimum input voltage of +2.5V and an undervoltage lockout (UVLO) threshold of 2.25V (typical) with 40mV hysteresis. Operation below 2.5V violates Absolute Maximum Ratings and may cause unpredictable regulation, increased dropout, or failure to maintain 2.85V output. In single-cell Li-ion applications, this means MAX8883EUTJJ-T remains functional down to ~2.92V (2.85V + 72mV dropout), aligning with practical end-of-discharge voltage for stable system operation.