Analog Devices Inc./Maxim Integrated MAX883ESA+T

Overview

MAX883ESA+T from Maxim Integrated is a 5V fixed-output, low-dropout linear regulator with 200mA output capability, 11µA typical quiescent current, 220mV dropout at 5V/200mA, and -40°C to +85°C operating range. It uses an internal p-channel MOSFET pass transistor and features shutdown mode (<1µA IQ), reverse-current protection, thermal overload protection, and low-battery detection - designed for battery-powered portable instruments and cellular phones.

For engineers reviewing the MAX883ESA+T datasheet, MAX883ESA+T pinout, MAX883ESA+T application, or MAX883ESA+T equivalent, key selection criteria include its 5V fixed output, SO-8 package thermal performance (1.5W), Dual Mode™ adjustable capability (1.25V–11V), and shutdown-mode current draw below 1µA - critical for ultra-low-power system design and BOM optimization in space-constrained embedded devices.

Technical Context

The MAX883ESA+T implements a micropower LDO architecture centered on a 1.20V internal reference, error amplifier, and p-channel MOSFET pass device with no base-drive current. Its Dual Mode™ operation selects between fixed 5V output (SET = GND) or adjustable output (SET = external resistor divider) via a 65mV threshold comparator.

Shutdown logic disables all circuitry including reference and bias networks, reducing supply current to <1µA. Reverse-current protection activates when VIN falls 6–20mV below VOUT, limiting backfeed current to ≤50µA at 5V output. Thermal shutdown triggers at +160°C with 10°C hysteresis.

Key Specifications

Pinout & Package

The MAX883ESA+T is housed in an 8-pin SOIC package with exposed thermal pad (1.5W rating). All GND pins (pins 3 and 6) serve as electrical ground and primary heat conduction paths - must be soldered to large copper planes for thermal integrity.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS76350DBVR and MCP1703T-5002E/MB, the MAX883ESA+T delivers integrated battery monitoring (LBI/LBO), reverse-current blocking, and 200mA output in a thermally robust SO-8 package - making it uniquely suited for self-contained, maintenance-free portable instrumentation requiring long service intervals and field reliability.

Availability

MAX883ESA+T is available at Aetrix Electronics and suitable for portable medical sensors, solar-powered environmental loggers, industrial handheld scanners, and low-power IoT edge nodes requiring stable component supply across extended production lifecycles.

Supply support for MAX883ESA+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 precision analog, mixed-signal, and power management ICs for demanding industrial, automotive, and communications applications.

The MAX882/MAX883/MAX884 product line was engineered specifically for ultra-low-power, battery-critical portable electronics - emphasizing micropower operation, thermal resilience in compact packages, and integrated system-level functions like battery monitoring and reverse-current protection.

FAQ

What is the maximum continuous output current of the MAX883ESA+T?

The MAX883ESA+T delivers 200mA continuously under specified thermal conditions. Absolute maximum continuous output current is 300mA, but sustained operation above 200mA requires careful thermal design using the 1.5W SO-8 package's full copper grounding capability. Derating applies above +70°C ambient per the 18.75mW/°C thermal derating curve.

Does the MAX883ESA+T support adjustable output voltage?

Yes, the MAX883ESA+T supports adjustable output from 1.25V to 11V using external resistors connected to the SET pin. When SET is grounded, it operates in fixed 5V mode. The internal 1.20V reference and Dual Mode™ comparator enable seamless transition between modes without external switches or configuration pins.

How does reverse-current protection work in the MAX883ESA+T?

The MAX883ESA+T monitors the differential between OUT and IN. When VIN falls 6–20mV below VOUT, its internal substrate switching network isolates the input, turning off the p-channel pass transistor and limiting reverse current to ≤50µA at 5V output. This prevents battery drain in systems where output rails may remain energized after input removal.

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

The LBI pin accepts a divided battery voltage for comparison against the internal 1.20V reference; the open-drain LBO pin asserts low when LBI falls below threshold. With 7mV hysteresis, this provides noise-immune low-battery detection. LBO remains functional in standby but is undefined during OFF mode - enabling flexible power-state-aware monitoring.

Can the MAX883ESA+T operate with a 2.7V input while delivering 5V output?

No - the MAX883ESA+T cannot step up voltage. As a linear regulator, it requires VIN > VOUT + dropout voltage. At 200mA, dropout is 220mV, so minimum input for 5V output is 5.22V. However, it supports inputs as low as 2.7V when configured for adjustable outputs down to 1.25V, provided the selected output voltage satisfies VIN > VOUT + ∆VDO.