Analog Devices Inc./Maxim Integrated MAX25210ATAB8U/V+T

Overview

MAX25210ATAB8U/V+T from Analog Devices is an automotive-grade, high-voltage linear regulator delivering 200mA output current with 10µA typical quiescent current, +3.5V to +36V input range, and +42V transient tolerance-designed for battery-supplied ECUs, body control modules, and infotainment power rails.

For engineers reviewing the MAX25210ATAB8U/V+T datasheet, MAX25210ATAB8U/V+T pinout, MAX25210ATAB8U/V+T application, or MAX25210ATAB8U/V+T equivalent, this page provides verified functional identity, validated 8-pin TDFN package mapping, confirmed fixed 87.5% RESET threshold, thermal shutdown at +170°C, and real-world design meaning for low-I_Q operation under cold-crank and load-dump conditions.

Technical Context

The MAX25210ATAB8U/V+T implements a high-voltage NPN pass transistor architecture with internal UVLO (2.2V falling), precision bandgap reference (0.600V on SETOV), and dual-mode feedback selection via SET/SETOV pins-enabling fixed 3.3V/5V or adjustable 0.6V–11V outputs. Its open-drain RESET output asserts low during undervoltage, ENABLE deactivation, or thermal shutdown.

It integrates a 1.25ms/nF timeout ramp generator referenced to TIMEOUT pin, supports external capacitor-based delay extension beyond the default 60µs, and features a 0.25µA internal ENABLE pulldown-allowing direct connection to microcontroller GPIO without external pull-down resistors.

Key Specifications

Pinout & Package

Package: 8-pin TDFN-EP (3mm × 3mm) with exposed thermal pad-optimized for high-power-density automotive PCB layouts and enhanced thermal dissipation (θ_JA = 41°C/W on 4-layer board).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-voltage, ultra-low-quiescent-current linear regulator applications.

Compared with MAX25210ATAB9/V+T and TPS7B8750QKVURQ1, the MAX25210ATAB8U/V+T uniquely balances 87.5% RESET margin, 200mA capability, full pin-strappable output configuration, and +42V robustness-making it optimal for multi-voltage automotive modules requiring field-programmable power sequencing.

Availability

MAX25210ATAB8U/V+T is available at Aetrix Electronics and suitable for automotive electronic control units, telematics systems, and ADAS camera modules requiring stable component supply across extended temperature and transient stress conditions.

Supply support for MAX25210ATAB8U/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

Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving automotive, industrial, communications, and healthcare markets.

The MAX25210 family is part of Analog Devices' automotive power management portfolio, designed specifically for ultra-low-quiescent-current, high-voltage linear regulation in AEC-Q100-compliant vehicle subsystems.

FAQ

What output voltage options does the MAX25210ATAB8U/V+T support?

The MAX25210ATAB8U/V+T supports fixed 3.3V or 5V outputs via SET and SETOV pin strapping, or adjustable 0.6V–11V outputs using an external resistive divider. It does not support factory-trimmed voltages outside this range, and the 87.5% RESET threshold applies identically across all configurations.

How is the RESET timeout period adjusted on the MAX25210ATAB8U/V+T?

The MAX25210ATAB8U/V+T uses the TIMEOUT pin to extend the default 60µs RESET delay. Connect a capacitor from TIMEOUT to GND; delay scales as t_RP = (1.25 × C_TIMEOUT)/I_TO, where I_TO = 1µA typical. For example, an 8nF capacitor yields ~10ms delay-verified in the Electrical Characteristics table.

Does the MAX25210ATAB8U/V+T require an external pull-down resistor on the ENABLE pin?

No. The MAX25210ATAB8U/V+T includes an internal 0.25µA ENABLE pulldown current source, ensuring reliable shutdown when ENABLE is left floating or driven by open-drain logic. External pull-down is unnecessary unless interfacing with high-impedance sources exceeding leakage limits.

What is the minimum output capacitor required for stability with the MAX25210ATAB8U/V+T?

The MAX25210ATAB8U/V+T is stable with a minimum 2.2µF low-ESR ceramic capacitor on the OUT pin for fixed 3.3V/5V operation. For adjustable outputs, a 10µF capacitor is recommended per the Applications Information section to maintain phase margin across the full 0.6V–11V range.

Is the MAX25210ATAB8U/V+T qualified for automotive use?

Yes. The MAX25210ATAB8U/V+T is AEC-Q100 Grade 1 qualified (-40°C to +125°C ambient), features +42V input transient tolerance, thermal shutdown at +170°C, and is manufactured in an automotive-certified process-meeting requirements for engine control, body electronics, and ADAS applications.