Analog Devices Inc./Maxim Integrated MAX883ESA

Overview

MAX883ESA from Maxim Integrated is a 5V fixed-output, low-dropout linear regulator with p-channel MOSFET pass element, 200mA output current capability, 220mV dropout at 5V/200mA, 11µA typical quiescent current, and -40°C to +85°C operating range. It delivers stable 5V power for battery-powered portable instruments and cellular handsets requiring ultra-low IQ and thermal robustness in SOIC-8 packaging.

For engineers reviewing the MAX883ESA datasheet, MAX883ESA pinout, MAX883ESA application, or MAX883ESA equivalent, key selection criteria include its shutdown-mode IQ (<1µA), reverse-current protection threshold (6–20mV), dual-mode adjustable/fixed output architecture, and 1.5W SOIC thermal performance enabling operation up to +125°C junction temperature.

Technical Context

The MAX883ESA uses a p-channel MOSFET pass transistor with no base-drive current, eliminating PNP saturation losses and enabling consistent 11µA quiescent current across load and dropout conditions. Its internal 1.20V reference feeds an error amplifier that drives the MOSFET gate via dedicated driver circuitry.

Dual Mode™ operation selects between fixed 5V output (SET = GND) and adjustable 1.25V–11V output (external resistor divider on SET), with mode detection based on SET voltage thresholds (65mV typ). Shutdown logic disables all biasing, reducing supply current below 1µA while disabling LBO functionality.

Key Specifications

Pinout & Package

MAX883ESA is housed in an 8-pin SOIC package rated for 1.5W power dissipation (θ_JB = 53°C/W), with exposed GND pins (pins 3 and 6) serving as thermal conduction paths to PCB copper planes.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar low-dropout, low-IQ linear regulator applications.

Compared with TPS76350DBVR and MCP1703T-5002E/MB, the MAX883ESA provides higher output current (200mA), integrated low-battery monitoring with hysteresis, reverse-current blocking, and superior thermal protection-making it optimal for mission-critical portable systems where reliability and feature integration outweigh footprint savings.

Availability

MAX883ESA is available at Aetrix Electronics and suitable for portable medical sensors, industrial handheld terminals, solar-powered environmental loggers, and low-power cellular modems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MAX883ESA 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 communications applications.

The MAX882/MAX883/MAX884 family was designed specifically for ultra-low-power battery-operated systems needing reliable 3.3V/5V regulation with intelligent protection features-including shutdown, reverse-current blocking, and thermal safety-without sacrificing efficiency or board space.

FAQ

What is the maximum continuous output current of the MAX883ESA?

The MAX883ESA delivers up to 200mA continuously under specified thermal conditions. At higher ambient temperatures or with insufficient PCB copper, derating applies per Figure 5b in the datasheet. The device can sustain short-term peaks beyond 200mA due to foldback current limiting, but continuous operation above 200mA risks thermal shutdown unless heatsinking is enhanced. Always verify power dissipation (I_OUT × (V_IN – V_OUT)) against the 1.5W SOIC package limit.

Does the MAX883ESA support adjustable output voltage?

Yes, the MAX883ESA supports adjustable output from 1.25V to 11V using external resistors on the SET pin, enabled by its Dual Mode™ architecture. When SET is grounded, it defaults to fixed 5V output. For adjustable operation, connect R1 and R2 as a voltage divider between OUT and GND, with SET tied to their junction. The output follows V_OUT = 1.20V × (1 + R1/R2), and R2 values up to 1.5MΩ are acceptable due to near-zero SET input bias current.

How does reverse-current protection work in the MAX883ESA?

The MAX883ESA activates reverse-current protection when V_IN falls 6–20mV below V_OUT, switching internal substrate and power bus connections to isolate the input. This prevents backfeed current from flowing into a depleted battery or weak source. During activation, reverse current is limited to <50µA at 5V output. Unlike diode-based solutions, this scheme adds no forward voltage drop or power loss in normal operation-preserving efficiency and battery runtime in the MAX883ESA.

What is the purpose of the LBI and LBO pins on the MAX883ESA?

The LBI (Low-Battery Input) pin monitors an external voltage divider connected to the battery, comparing it to the internal 1.20V reference. When LBI falls below 1.20V, the open-drain LBO (Low-Battery Output) pin pulls low to signal end-of-life battery condition. LBO remains functional in standby mode but is undefined during OFF mode. Hysteresis of 7mV prevents chatter near the trip point, and LBI input leakage is ±50nA max-enabling high-impedance resistor networks for minimal battery drain in the MAX883ESA.

Can the MAX883ESA operate reliably at -40°C?

Yes, the MAX883ESA is rated for full electrical performance across -40°C to +85°C (E-grade). All key parameters-including output voltage accuracy (±2.5%), dropout voltage (220mV typ), quiescent current (11µA typ), and LBI threshold (1.11V–1.29V)-are guaranteed over this range. The p-channel MOSFET pass element avoids low-temperature gain degradation seen in bipolar regulators, and the 1.5W SOIC package maintains thermal integrity even at cold extremes-ensuring robust operation in outdoor or industrial environments for the MAX883ESA.