Analog Devices Inc./Maxim Integrated MAX883CSA

Overview

MAX883CSA 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 in an 8-pin SOIC package. It features 11µA typical quiescent current, 220mV dropout at 5V/200mA, and shutdown mode drawing <1µA - optimized for battery-powered pagers, cellular phones, and portable instruments.

For engineers reviewing the MAX883CSA datasheet, MAX883CSA pinout, MAX883CSA application, or MAX883CSA equivalent, key selection criteria include its 5V fixed output (non-adjustable unless reconfigured), dual-mode feedback architecture, reverse-current protection threshold of 6–20mV, thermal shutdown at +160°C, and compatibility with 2.2µF ceramic output capacitors for stability.

Technical Context

The MAX883CSA employs a 1.20V internal reference and error amplifier driving a p-channel MOSFET pass transistor - eliminating base-current losses inherent in bipolar regulators and enabling ultra-low IQ across load range. Its dual-mode comparator selects between internal fixed-voltage feedback (SET ≤ 65mV) and external adjustable feedback (SET > 150mV), with SET input leakage <±50nA ensuring resistor network accuracy.

Shutdown logic disables all circuitry including reference and bias networks when OFF is pulled low, reducing supply current to <1µA; LBO remains undefined in OFF mode. Reverse-current protection activates when VIN falls 6mV below VOUT, clamping reverse conduction while maintaining LBI comparator functionality until shutdown.

Key Specifications

Pinout & Package

The MAX883CSA is housed in an 8-pin SOIC package rated for 1.5W power dissipation (θ_JB = 53°C/W), with GND pins (3 & 6) serving dual electrical and thermal functions - requiring connection to large copper pads or ground planes for safe 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 TPS76350DBVR and MCP1703T-5002E/MB, the MAX883CSA delivers superior battery efficiency via 11µA IQ and reverse-current blocking, plus integrated battery monitoring and thermal safety - justifying its SOIC footprint in mission-critical portable systems.

Availability

MAX883CSA is available at Aetrix Electronics and suitable for cellular phone power management, pager system core supply, solar-powered data loggers, portable medical instruments, and battery-backed instrumentation requiring stable component supply across industrial temperature ranges and long-lifecycle programs.

Supply support for MAX883CSA 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 MAX882/MAX883/MAX884 family was designed specifically for micropower, battery-critical systems - combining ultra-low IQ, low dropout, and integrated protection features in a thermally enhanced SOIC package.

FAQ

What is the output voltage tolerance of the MAX883CSA over temperature and load?

The MAX883CSA delivers a nominal 5.00V output with ±2.5% tolerance (4.75V to 5.25V) across 0°C to +70°C ambient and 100µA to 250mA load current. At -40°C to +85°C, the range widens to 4.65V to 5.35V. This specification is guaranteed by design and verified in production testing for C-grade parts, ensuring reliable 5V regulation in commercial portable equipment.

Does the MAX883CSA support adjustable output voltage, and how is it configured?

Yes, the MAX883CSA supports adjustable output from 1.25V to 11V using external resistors on the SET pin - enabled when SET voltage exceeds 150mV. The output is calculated as V_OUT = 1.20V × (1 + R1/R2), with R2 ≤ 1.5MΩ recommended. For fixed 5V operation, tie SET directly to GND (impedance <100kΩ). The MAX883CSA's Dual Mode™ architecture automatically selects the feedback path based on SET voltage level.

What is the maximum continuous output current the MAX883CSA can deliver, and what limits it?

The MAX883CSA is rated for 200mA continuous output current at +125°C junction temperature, but actual deliverable current depends on thermal management and input-output differential. With 8-pin SOIC mounted on a 1cm² copper pad at +25°C ambient, it sustains 200mA up to ~7.5V input (per Figure 5b). Above that, power dissipation (I_OUT × (V_IN – V_OUT)) triggers thermal shutdown at +160°C - making heatsinking critical for high-VIN/high-IOUT operation.

How does reverse-current protection work in the MAX883CSA, and what is its activation threshold?

The MAX883CSA monitors the differential between VOUT and VIN and disables the p-channel pass transistor when VIN falls 6mV (typical) below VOUT - preventing reverse current flow from output to input. This protects batteries from discharging through the regulator when the input source collapses (e.g., dead solar panel or disconnected adapter). Typical reverse leakage is 0.01µA at VOUT = 3.0V, and the feature operates independently of OFF/STBY modes.

Can the MAX883CSA be used with ceramic output capacitors, and what is the minimum required value?

Yes, the MAX883CSA is fully compatible with ceramic output capacitors and requires a minimum of 2.2µF for stability - as verified in production testing and application circuits. Unlike older LDOs, its control loop is insensitive to capacitor ESR, allowing use of low-ESR X7R/X5R ceramics without phase-margin risk. Larger values (e.g., 10µF) improve load-transient response but are not required for basic regulation.