Analog Devices Inc./Maxim Integrated MAX25210ATAB8U/V+

Overview

The MAX25210ATAB8U/V+ from Analog Devices is an automotive-grade, high-voltage linear regulator delivering 200mA output current with ultra-low 10µA quiescent current and +3.5V to +36V input range. It supports fixed +3.3V or +5V outputs (this variant uses 87.5% RESET threshold) and operates across –40°C to +125°C. It is designed for battery-supplied automotive ECUs where low-power wake-up and load-dump resilience are critical.

For engineers reviewing the MAX25210ATAB8U/V+ datasheet, MAX25210ATAB8U/V+ pinout, MAX25210ATAB8U/V+ application, or MAX25210ATAB8U/V+ equivalent, key selection factors include its 200mA current rating, 87.5% VOUT reset threshold, 280mV dropout at 200mA, TDFN-EP 3mm × 3mm package, and AEC-Q100 qualification - all essential for automotive power-rail supervision and always-on subsystems.

Technical Context

The MAX25210ATAB8U/V+ integrates a precision bandgap reference, thermal shutdown circuitry triggering at +170°C with 20°C hysteresis, and short-circuit protection limiting output current to 230–330mA (typ). Its ENABLE input tolerates up to +42V and features an internal 0.25µA pulldown, enabling direct connection to battery rails without external biasing.

RESET functionality uses an open-drain output with fixed 87.5% falling-threshold detection and a factory-default 60µs timeout, extendable via external capacitor on the TIMEOUT pin. The SET/SETOV dual-control interface configures fixed (+3.3V/+5V) or adjustable (0.6V–11V) output modes without requiring external resistors in fixed mode.

Key Specifications

Pinout & Package

Package: 8-pin TDFN-EP (3mm × 3mm), exposed thermal pad (EP), RoHS-compliant, tape-and-reel.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX25210ATAB9/V+, the MAX25210ATAB8U/V+ provides earlier fault detection margin due to its lower 87.5% RESET threshold, while both share identical thermal protection, enable robustness, and output capability. Against TPS7B8750QKVURQ1, MAX25210ATAB8U/V+ delivers superior board-area efficiency, lower IQ, and configurable reset timing - critical for next-gen compact automotive ECUs.

Availability

MAX25210ATAB8U/V+ is available at Aetrix Electronics and suitable for automotive electronic control units, telematics gateways, and ADAS camera modules requiring stable component supply with AEC-Q100 assurance, low-quiescent-current operation, and load-dump resilience.

Supply support for MAX25210ATAB8U/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

Analog Devices, Inc. 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, engineered specifically for ultra-low-IQ, high-input-voltage linear regulation in safety-critical and always-on vehicle subsystems.

FAQ

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

The MAX25210ATAB8U/V+ supports fixed +3.3V and +5V outputs via internal feedback networks, selected by connecting the SETOV pin to GND or OUT respectively. It also supports adjustable output voltages from +0.6V to +11V using an external resistive divider between OUT and SETOV, with SET driven high. No external resistors are needed for fixed-output configurations.

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

The MAX25210ATAB8U/V+ features a factory-default 60µs RESET timeout when the TIMEOUT pin is left unconnected. To extend the delay, connect a low-leakage ceramic capacitor from TIMEOUT to GND. The timeout scales at 1.25ms/nF (e.g., 8nF yields ~10ms). Capacitors below 100pF are discouraged due to parasitic effects.

Does the MAX25210ATAB8U/V+ require external capacitors, and what values are recommended?

Yes, the MAX25210ATAB8U/V+ requires a minimum 1µF ceramic capacitor between IN and GND, and a minimum 2.2µF low-ESR ceramic capacitor between OUT and GND for stable operation in fixed-output mode. For adjustable-output configurations, a 10µF output capacitor is recommended. X7R or X5R dielectrics are preferred for stable ESR across temperature.

What protection features are integrated into the MAX25210ATAB8U/V+?

The MAX25210ATAB8U/V+ integrates thermal shutdown (trip at +170°C, 20°C hysteresis), short-circuit current limiting (230–330mA typ), input UVLO (2.2V falling), and +42V transient tolerance on IN and ENABLE pins. It also includes internal current limiting on SETOV and TIMEOUT pins, and open-drain RESET with overvoltage-safe leakage specification.

Is the MAX25210ATAB8U/V+ AEC-Q100 qualified, and what grade does it meet?

Yes, the MAX25210ATAB8U/V+ is AEC-Q100 qualified per Grade 1, specifying operation from –40°C to +125°C ambient temperature. This qualification covers stress testing for accelerated environmental, mechanical, and electrical reliability - confirming suitability for under-hood and body electronics in production automotive platforms.