Analog Devices Inc./Maxim Integrated MAX8527EUD/V+T

Overview

MAX8527EUD/V+T from Maxim Integrated is a 2A, low-dropout linear regulator with p-channel MOSFET pass device, operating from 1.425V to 3.6V input and delivering adjustable output from 0.5V to (VIN − 0.2V), featuring 200mV dropout at full load, ±1.4% output accuracy over 0°C to +85°C, and integrated power-OK (POK) output - used in server VRM post-regulation and optical module bias supplies.

For engineers reviewing the MAX8527EUD/V+T datasheet, MAX8527EUD/V+T pinout, MAX8527EUD/V+T application, or MAX8527EUD/V+T equivalent, this page delivers verified technical context, validated pin functions, confirmed ceramic-capacitor compatibility, POK timing behavior, and automotive-grade thermal protection specs per AEC-Q100-referenced qualification.

Technical Context

The MAX8527EUD/V+T employs an internal p-channel MOSFET pass transistor with 50mΩ typical on-resistance, enabling stable regulation down to 1.425V input without base-drive current penalties. Its feedback loop uses a precision 500mV reference with ±10mV hysteresis for POK threshold detection.

It integrates soft-start to limit inrush current, logic-controlled shutdown with <50µA quiescent current, and dual fault protection: current limiting to 4A and thermal shutdown at +165°C with automatic recovery at +150°C - all implemented in BiCMOS process with 2977 transistors.

Key Specifications

Pinout & Package

MAX8527EUD/V+T is housed in a 14-pin TSSOP package with exposed thermal pad (EP), measuring 5mm × 6.4mm × 1.1mm, optimized for PCB heat dissipation via soldered EP-to-ground plane connection.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX8527EUD/V+T, TPS7A8300RGRT trades POK and low-dropout performance for micro-power operation, while NCP1117ST50T3G offers cost-effective fixed-voltage regulation at the expense of adjustability, current capability, and automotive compliance - making MAX8527EUD/V+T uniquely suited for high-reliability, sequenced, adjustable 2A loads.

Availability

MAX8527EUD/V+T is available at Aetrix Electronics and suitable for server VRM post-regulation, optical transceiver bias, and 5G base station RF front-end applications requiring stable component supply across extended temperature and automotive qualification.

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

The MAX8527EUD/V+T belongs to Maxim's high-current LDO family engineered specifically for post-regulation in space-constrained, thermally aggressive environments - emphasizing low dropout, ceramic-capacitor stability, and integrated power sequencing.

FAQ

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

The MAX8527EUD/V+T 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 input voltage range (1.425V to 3.6V), enabling efficient regulation in low-headroom applications such as 1.5V or 1.8V domain supplies where the MAX8527EUD/V+T maintains regulation without requiring additional pre-regulation stages.

Does MAX8527EUD/V+T support adjustable output voltage, and what is the feedback reference voltage?

Yes, MAX8527EUD/V+T supports fully adjustable output voltage from 0.5V to (VIN − 0.2V) using an external resistor divider connected to the FB pin. The internal feedback reference voltage is precisely trimmed to 500mV (±10mV over temperature), enabling accurate output setting with standard 1% resistors. This architecture allows designers to tailor the output to match specific core or analog rail requirements without needing multiple fixed-output variants.

What is the function and electrical behavior of the POK pin on MAX8527EUD/V+T?

The POK (Power-OK) pin on MAX8527EUD/V+T is an open-drain output that transitions high when the regulated output voltage is within ±10% of its nominal value, and low otherwise. It includes a 50µs internal delay to prevent false triggering during transient events. The pin requires an external pullup resistor to IN and remains low during shutdown, short-circuit, or thermal fault conditions - providing reliable, debounced power-good status for FPGA, ASIC, or microcontroller reset sequencing in the MAX8527EUD/V+T application.

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

Yes, the "/V" suffix in MAX8527EUD/V+T explicitly denotes automotive qualification per AEC-Q100 Grade 3 (−40°C to +85°C ambient). This includes stress testing for temperature cycling, humidity, and mechanical shock, plus enhanced process controls and traceability. The "/V" variant shares identical electrical specifications with the commercial-grade MAX8527EUD+, but adds full automotive documentation, lot-level traceability, and extended reliability validation - confirming suitability for under-hood and infotainment power systems.

What capacitor values are required for stable operation of MAX8527EUD/V+T at full 2A load?

For stable 2A operation, MAX8527EUD/V+T requires a minimum 2.2µF ceramic capacitor between IN and GND, and a minimum 10µF ceramic capacitor between OUT and GND. These values ensure loop stability across temperature and load, with low ESR and ESL characteristics. Smaller output capacitors may be used for reduced load currents (e.g., C_OUT = I_OUT(max) × 1µF/200mA), but the 10µF value is mandatory to meet the specified 45mV transient deviation during 20mA→2A load steps in the MAX8527EUD/V+T datasheet.