Analog Devices Inc./Maxim Integrated MAX25210ATAB8/V+

Overview

MAX25210ATAB8/V+ from Analog Devices is an automotive-grade, high-voltage linear regulator delivering up to 200mA output current with 10µA typical quiescent current, +3.5V to +36V input range, and +42V transient tolerance-designed for battery-supplied ECUs and ADAS domain controllers requiring ultra-low standby power.

For engineers reviewing the MAX25210ATAB8/V+ datasheet, MAX25210ATAB8/V+ pinout, MAX25210ATAB8/V+ application, or MAX25210ATAB8/V+ equivalent, this page delivers verified electrical specs, thermal behavior under load-dump, fixed/adjustable output configuration logic, RESET timing validation, and AEC-Q100-compliant packaging details essential for automotive power rail design.

Technical Context

The MAX25210ATAB8/V+ implements a high-side pass transistor architecture with internal UVLO (2.2V falling), thermal shutdown at +170°C with 20°C hysteresis, and active-high ENABLE tolerant to +42V-enabling direct connection to battery rails without level-shifting. Its SET/SETOV dual-input control scheme selects between 3.3V/5V fixed outputs or 0.6V–11V adjustable regulation via external resistor divider.

RESET functionality uses open-drain topology with factory-trimmed 87.5% VOUT threshold and 60µs default timeout, extendable via TIMEOUT pin capacitor; dropout voltage is 300mV (typ) at 200mA load, supporting cold-crank operation down to +3.5V input.

Key Specifications

Pinout & Package

MAX25210ATAB8/V+ is housed in a thermally enhanced 3mm × 3mm, 8-pin TDFN-EP package with exposed pad for PCB heat sinking. Pin 1 (IN) accepts up to +42V; Pin 2 (ENABLE) is +42V-tolerant active-high; Pin 4 (RESET) is open-drain active-low; Pin 8 (OUT) delivers regulated voltage with ≤12mV load regulation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX25210ATAB8/V+, the MAX25210ATAA8/V+ offers higher output current in identical packaging and qualification, while the TLV73325PDBVR trades automotive robustness and integrated monitoring for lower cost and IQ-making it unsuitable for safety-critical vehicle subsystems.

Availability

MAX25210ATAB8/V+ is available at Aetrix Electronics and suitable for automotive electronic control units, ADAS camera modules, and telematics gateways requiring stable component supply across extended temperature and lifetime requirements.

Supply support for MAX25210ATAB8/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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving automotive, industrial, and communications markets with precision power, sensing, and connectivity solutions.

The MAX25210 family is engineered specifically for automotive power management-delivering ultra-low IQ, high-voltage resilience, and integrated system monitoring to meet stringent OEM module-level sleep and startup requirements.

FAQ

What output voltage options does the MAX25210ATAB8/V+ support?

The MAX25210ATAB8/V+ supports hardware-configurable output voltages: 3.3V (SETOV tied to GND) or 5V (SETOV tied to OUT) in fixed mode; or 0.6V–11V adjustable output using an external resistive divider connected to SETOV and OUT. The SET pin determines mode-GND for fixed, >2.4V for adjustable. No programming interface is required.

How is the RESET timeout period adjusted on the MAX25210ATAB8/V+?

The MAX25210ATAB8/V+ provides a 60µs default RESET timeout when the TIMEOUT pin is left unconnected. To extend the delay, connect a low-leakage capacitor (≥100pF, ceramic recommended) from TIMEOUT to GND. Timeout scales as t_RP = 1.25 ms/nF × C_TIMEOUT, enabling precise alignment with microcontroller reset timing requirements up to 10ms.

Does the MAX25210ATAB8/V+ require an external capacitor on the ENABLE pin?

No, the MAX25210ATAB8/V+ does not require an external capacitor on the ENABLE pin. ENABLE is an active-high, +42V-tolerant input with internal 0.25µA pulldown current-allowing direct connection to battery or microcontroller GPIO without external components. Capacitors are unnecessary unless noise filtering is needed in high-EMI environments.

What thermal performance can be expected from the MAX25210ATAB8/V+ in a 4-layer PCB design?

In a standard 4-layer PCB with thermal vias to inner ground planes, the MAX25210ATAB8/V+ achieves θ_JA = 41°C/W and θ_JC = 8°C/W. At 200mA load and +85°C ambient, junction temperature rise is ~8.2°C-well below the +125°C operating limit. Full thermal derating applies above +70°C ambient per datasheet specifications.

Is the MAX25210ATAB8/V+ qualified to AEC-Q100, and what grade does it meet?

Yes, the MAX25210ATAB8/V+ is AEC-Q100 qualified and meets Grade 1 requirements (−40°C to +125°C operating junction temperature), including stress testing for temperature cycling, humidity bias, and mechanical shock-validating its suitability for engine compartment, chassis, and body electronics applications.