Analog Devices Inc./Maxim Integrated MAX883EPA+

Overview

MAX883EPA+ from Maxim Integrated is a 5V fixed-output, low-dropout linear regulator with p-channel MOSFET pass element, delivering up to 200mA output current at junction temperatures up to +125°C, featuring 11µA typical quiescent current, 220mV dropout at 5V/200mA, and shutdown mode drawing <1µA - designed for battery-powered portable instruments and cellular phones.

For engineers reviewing the MAX883EPA+ datasheet, MAX883EPA+ pinout, MAX883EPA+ application, or MAX883EPA+ equivalent, key selection criteria include its -40°C to +85°C extended temperature grade, 8-pin PDIP package with thermal ground pins, Dual Mode™ adjustable/fixed output capability, reverse-current protection threshold of 6–20mV, and integrated low-battery comparator with LBO open-drain output.

Technical Context

The MAX883EPA+ employs a p-channel MOSFET pass transistor with no base-drive current, eliminating PNP saturation losses and enabling stable 11µA quiescent current across load (0–200mA) and dropout conditions. Its internal 1.20V reference feeds an error amplifier that controls gate drive to maintain regulation via either internal feedback (5V fixed) or external resistor network (1.25–11V adjustable).

Dual Mode™ operation is determined by the SET pin voltage: below 65mV selects internal 5V regulation; above 150mV enables external feedback. Shutdown is asserted via active-low OFF pin, disabling all circuitry including reference and bias networks, while thermal shutdown activates at +160°C with 10°C hysteresis and foldback current limiting (430mA normal, 170mA short-circuit).

Key Specifications

Pinout & Package

MAX883EPA+ is housed in an 8-pin plastic DIP (PDIP) package with exposed ground leads serving as thermal conduction paths. All GND pins must be soldered to large copper areas for reliable 200mA operation at elevated ambient temperatures.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LT1761ES5-5#TRMPBF and TLS850F0TESA1, MAX883EPA+ uniquely balances ultra-low IQ (11µA), integrated battery monitoring (LBI/LBO), and shutdown control in an extended-temperature PDIP package - making it optimal for cost-sensitive, battery-life-critical industrial handhelds and solar loggers where feature integration reduces BOM count.

Availability

MAX883EPA+ is available at Aetrix Electronics and suitable for portable medical sensors, solar-powered data loggers, industrial handheld scanners, and cellular IoT modems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MAX883EPA+ 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 U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and consumer applications.

MAX883EPA+ belongs to Maxim's micropower LDO family engineered for battery longevity in portable systems - emphasizing ultra-low quiescent current, reverse-current blocking, and integrated power-monitoring functions to minimize external components.

FAQ

What is the maximum continuous output current of the MAX883EPA+?

The MAX883EPA+ delivers up to 200mA continuously at junction temperatures up to +125°C when used with adequate PCB copper pour on GND pins. At higher ambient temperatures or with insufficient thermal relief, derating applies per the 727mW power dissipation limit for its PDIP package. The device also features foldback current limiting - 430mA under normal output conditions and 170mA during short-circuit - protecting against sustained overload.

Does the MAX883EPA+ support adjustable output voltage?

Yes, the MAX883EPA+ supports adjustable output from 1.25V to 11V using external resistors connected to the SET pin. When SET is pulled above 150mV (e.g., via resistor divider to OUT), the internal feedback is disabled and regulation follows VOUT = 1.20V × (1 + R1/R2). The 5V fixed output is selected automatically when SET is tied to GND (voltage <65mV), leveraging factory-trimmed internal resistors.

How does reverse-current protection work in the MAX883EPA+?

The MAX883EPA+ uses substrate-switching architecture to detect when VIN falls 6–20mV below VOUT and actively disconnects the pass transistor's source from the input rail. This limits reverse current to ≤50µA at 5V output, preventing battery discharge through the regulator when input voltage collapses - critical for systems with backup batteries or hot-swap capability. Unlike diode-based solutions, it adds no forward voltage drop.

What is the purpose of the OFF pin on the MAX883EPA+?

The OFF pin is an active-low logic input that places the MAX883EPA+ into ultra-low-power shutdown mode, reducing supply current to <1µA by disabling the reference, error amplifier, MOSFET driver, and all bias circuitry. Unlike the MAX882's STBY pin, OFF fully powers down the low-battery comparator - so LBO becomes undefined. For applications needing battery monitoring during sleep, the MAX882 is preferred.

Can the MAX883EPA+ operate with a 2.7V input and deliver 5V output?

No - the MAX883EPA+ cannot regulate 5V output from a 2.7V input because the minimum input voltage must exceed the desired output plus dropout voltage. With 220mV typical dropout at 200mA, VIN must be ≥5.22V to sustain 5V output. However, the device supports inputs as low as 2.7V when configured for lower output voltages (e.g., 2.5V or 1.8V) in adjustable mode, provided dropout margin is maintained.