Analog Devices Inc./Maxim Integrated MAX8527EUD/V+

Overview

MAX8527EUD/V+ from Maxim Integrated is a 2A, low-dropout linear regulator with PMOS pass transistor, 1.425V–3.6V input range, 200mV dropout at full load, ±1.4% output accuracy over 0°C to +85°C, and integrated power-OK (POK) output for system monitoring in post-regulation applications such as optical modules and base stations.

For engineers reviewing the MAX8527EUD/V+ datasheet, MAX8527EUD/V+ pinout, MAX8527EUD/V+ application, or MAX8527EUD/V+ equivalent, this page delivers verified electrical parameters, thermal behavior, POK timing, shutdown current, and ceramic capacitor compatibility - all critical for high-current, low-voltage rail design in automotive-qualified infrastructure systems.

Technical Context

The MAX8527EUD/V+ uses an internal p-channel MOSFET pass device with 50mΩ typical on-resistance, enabling stable regulation down to 1.425V input without base-drive current penalties. Its feedback architecture references a precise 500mV FB threshold, supporting adjustable output from 0.5V to (VIN − 0.2V) via external resistor divider.

It integrates logic-controlled shutdown (EN pin), soft-start limiting inrush, open-drain POK with ±10% trip window and 50µs fault delay, short-circuit protection (4A limit), and thermal shutdown at +165°C with hysteresis returning at +150°C - all operating within −40°C to +85°C automotive temperature range.

Key Specifications

Pinout & Package

MAX8527EUD/V+ is housed in a 14-pin TSSOP package with exposed thermal pad (EP) soldered to PCB ground plane for optimal heat dissipation. Package dimensions: 5mm × 6.4mm footprint, 1.1mm profile.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS7A8300RGRT and NCP1117ST50T3G, the MAX8527EUD/V+ uniquely combines 2A adjustable output, automotive qualification, integrated POK with 50µs debounce, and ceramic-capacitor stability - making it the only option among the three qualified for AEC-Q100-compliant optical and base station infrastructure designs.

Availability

MAX8527EUD/V+ is available at Aetrix Electronics and suitable for optical modules, base stations, and automotive networking applications requiring stable component supply with guaranteed automotive qualification and long-term lifecycle support.

Supply support for MAX8527EUD/V+ 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, communications, and automotive applications.

The MAX8527EUD/V+ belongs to Maxim's high-current LDO family engineered specifically for low-input-voltage, high-accuracy post-regulation in infrastructure and automotive electronics where dropout, thermal performance, and system-level monitoring are critical.

FAQ

What is the maximum output current and dropout voltage specification for MAX8527EUD/V+?

The MAX8527EUD/V+ delivers up to 2A of continuous output current with a guaranteed maximum dropout voltage of 200mV at that load. This specification holds across the full operating temperature range (−40°C to +85°C) and enables stable regulation even when input voltage is only 0.2V above the output setting. The 200mV dropout is measured at VIN = 1.425V, IOUT = 2A, and VFB = 480mV per the official datasheet.

Does MAX8527EUD/V+ include power-good functionality, and how does it operate?

Yes, MAX8527EUD/V+ features a dedicated open-drain POK (power-OK) output that transitions high when the regulated output is within ±10% of its nominal value. It includes 50µs internal fault delay to prevent chatter during minor transients. The POK pin requires an external pullup resistor to IN and asserts low during shutdown, overtemperature, or output undervoltage - providing deterministic system monitoring without external comparators.

What are the input and output capacitor requirements for stable operation of MAX8527EUD/V+ at 2A?

For stable 2A operation, MAX8527EUD/V+ requires a minimum 2.2µF ceramic capacitor between IN and GND, and a minimum 10µF ceramic capacitor between OUT and GND. Both capacitors must have low ESR. Smaller output capacitance may be used for loads below 2A using the formula COUT = IOUT(max) × (1µF/200mA). These values ensure stability across −40°C to +85°C and meet transient response targets.

Is MAX8527EUD/V+ qualified for automotive applications, and what does the "/V+" suffix indicate?

Yes, the "/V+" suffix explicitly denotes AEC-Q100 qualification for automotive use, covering the full −40°C to +85°C operating temperature range. This includes stress testing for reliability, extended temperature validation, and traceable manufacturing controls. The MAX8527EUD/V+ is intended for vehicle networking, infotainment, and ADAS subsystems where functional safety and long-term supply continuity are mandatory.

How does the enable (EN) pin function, and what is the shutdown current of MAX8527EUD/V+?

The EN pin is a logic-controlled input: pulling it low places MAX8527EUD/V+ into shutdown mode with typical supply current below 50µA. During shutdown, an internal 10kΩ resistor pulls the OUT pin toward GND to prevent floating outputs. For normal operation, EN is tied to IN. The enable threshold is 1.2V (rising) and 0.4V (falling), ensuring robust noise immunity in noisy automotive or industrial environments.