Analog Devices Inc./Maxim Integrated MAX6769TALD2+T

Overview

MAX6769TALD2+T from Maxim Integrated is an automotive-grade micropower linear regulator with integrated supervisor and adjustable reset threshold. It operates from 4V to 72V input, delivers up to 100mA output at 5.0V (L-suffix), features active-low open-drain RESET with 12.5ms fixed timeout (D2 suffix), and supports RESETIN-based monitoring of external voltages - ideal for engine control units requiring robust brownout detection and ignition-controlled power sequencing.

For engineers reviewing the MAX6769TALD2+T datasheet, MAX6769TALD2+T pinout, MAX6769TALD2+T application, or MAX6769TALD2+T equivalent, key selection criteria include its AEC-Q100 qualification, 31µA quiescent current, 5V/100mA regulated output, adjustable reset threshold via RESETIN, and compatibility with high-temperature automotive environments (-40°C to +125°C).

Technical Context

The MAX6769TALD2+T implements a single-enable (ENABLE) linear regulator architecture with dual-mode supervisor functionality: it monitors either its own output (OUT) or an external voltage via RESETIN using a precision 1.085V internal reference (M/S/Y/V family). Its RESET output asserts when the monitored voltage falls below the threshold and remains asserted for a fixed 12.5ms timeout period set by the D2 suffix.

This variant belongs to the MAX6769/MAX6770 subgroup, distinguishing itself from other family members by omitting HOLD, WDI, and dual ENABLE inputs - instead providing RESETIN as the sole adjustable reset trigger path. It uses a 6-pin TDFN-EP package with thermal pad, supporting continuous operation under high ambient temperature and load conditions.

Key Specifications

Pinout & Package

MAX6769TALD2+T is housed in a thermally enhanced 3mm × 3mm, 6-pin TDFN-EP package (package code T633+2) with exposed pad (EP) internally connected to GND. The EP must be soldered to PCB ground plane for optimal thermal performance (θJC = 9°C/W).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX6770TALD2+T, the MAX6769TALD2+T offers tighter reset threshold tolerance for M/S/Y/V rail monitoring; compared with TLV70750PDQNR, it provides full automotive-grade supervision at high input voltage - making it irreplaceable in battery-fed ECU and BCM designs requiring AEC-Q100 compliance and multi-rail monitoring.

Availability

MAX6769TALD2+T is available at Aetrix Electronics and suitable for automotive engine control units, body control modules, ADAS cameras, and telematics control units requiring stable component supply across extended temperature and voltage ranges.

Supply support for MAX6769TALD2+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 high-performance analog and mixed-signal ICs for automotive, industrial, and communications markets, with emphasis on reliability and integration.

The MAX6765–MAX6774B product line delivers automotive-qualified micropower regulators with integrated supervision - engineered specifically for always-on vehicle subsystems needing ultra-low IQ, wide input range, and robust fault detection.

FAQ

What is the function of the RESETIN pin on the MAX6769TALD2+T?

The RESETIN pin on the MAX6769TALD2+T enables adjustable reset threshold monitoring of an external voltage rail. It compares the divided input voltage against an internal 1.085V reference (M/S/Y/V family), asserting RESET when the monitored voltage falls below the calculated threshold. This allows independent supervision of battery, sensor, or communication rails without affecting the 5.0V regulated output. The MAX6769TALD2+T uses this capability to provide dual-point fault detection in automotive systems.

Does the MAX6769TALD2+T require an external capacitor on the TIMEOUT pin?

No, the MAX6769TALD2+T does not require an external capacitor on the TIMEOUT pin when using the D2 suffix. The "D2" in the part number specifies a fixed 12.5ms reset timeout period, achieved by internally connecting TIMEOUT to OUT. Leaving TIMEOUT unconnected or adding a capacitor would override the factory-set timing and invalidate the guaranteed timeout specification. For the MAX6769TALD2+T, TIMEOUT should be tied directly to OUT per the datasheet recommendation.

Is the MAX6769TALD2+T AEC-Q100 qualified?

Yes, the MAX6769TALD2+T is AEC-Q100 qualified. Per Maxim's ordering information table, the "/V+" suffix (present in MAX6769TA_D_/V+) denotes automotive qualification, and the MAX6769TALD2+T includes this designation. It is qualified to Grade 0 (-40°C to +125°C) and meets stress testing requirements for automotive electronics, including temperature cycling, humidity, and mechanical shock - making it suitable for engine bay and under-dash applications.

What is the maximum load current the MAX6769TALD2+T can deliver at 5.0V output?

The MAX6769TALD2+T guarantees 100mA of continuous output current at 5.0V under all operating conditions within its -40°C to +125°C temperature range and 4V–72V input range. This rating accounts for internal power dissipation limits and thermal performance in the 3mm × 3mm TDFN-EP package. At higher ambient temperatures or input voltages, output current may be limited by junction temperature - but the 100mA specification is maintained with proper PCB thermal design (e.g., 2oz copper, thermal vias to inner ground planes).

Can the MAX6769TALD2+T be used with a 3.3V microcontroller I/O interface?

Yes, the MAX6769TALD2+T is fully compatible with 3.3V microcontroller I/O interfaces. Its ENABLE input accepts logic-high signals as low as 1.4V (VIH min), and its open-drain RESET output operates with a 0.4V VOL at 3.2mA sink - well within 3.3V logic thresholds. The RESET pin requires only an external pull-up to 3.3V (not VCC), allowing direct interfacing to 3.3V µP reset inputs without level shifting. All digital pins are 5V-tolerant, ensuring robustness against voltage overshoot.