Analog Devices Inc./Maxim Integrated MAX6769TALD2/V+T

Overview

MAX6769TALD2/V+T from Maxim Integrated is an automotive-qualified micropower linear regulator with integrated supervisor, delivering 5.0V at up to 100mA from 4V–72V input. It features adjustable reset threshold via RESETIN pin, 12.5ms fixed reset timeout (D2 suffix), open-drain active-low RESET output, and AEC-Q100 qualification for engine control modules and body electronics.

For engineers reviewing the MAX6769TALD2/V+T datasheet, MAX6769TALD2/V+T pinout, MAX6769TALD2/V+T application, or MAX6769TALD2/V+T equivalent, key selection criteria include its 5V fixed output, RESETIN-adjustable brownout detection, -40°C to +125°C operation, 31µA quiescent current, and TDFN-6 thermally enhanced package suitable for always-on automotive power domains.

Technical Context

The MAX6769TALD2/V+T implements a high-voltage linear regulation architecture with internal 1.233V reference and precision comparator-based RESET supervision. Its RESETIN input enables monitoring of external voltages (e.g., battery or MCU supply) using a resistive divider, with threshold set to 1.147V × (1 + R3/R4) - matching L/T/Z/W family variants.

This variant belongs to the MAX6769/MAX6770 subgroup, supporting single ENABLE input and RESETIN-based reset triggering (not VOUT monitoring). The D2 suffix specifies a 12.5ms reset timeout period, implemented via internal ramp circuitry tied to TIMEOUT pin, and the /V+ suffix confirms AEC-Q100 qualification and RoHS compliance in tape-and-reel packaging.

Key Specifications

Pinout & Package

MAX6769TALD2/V+T uses a 6-pin 3mm × 3mm thermally enhanced TDFN-EP package (package code T633+2), with exposed pad (EP) internally connected to GND for optimal thermal dissipation (θJC = 9°C/W).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX6769TALD2/V+T, the MAX6769TALD4/V+T offers longer reset assertion for marginal supply recovery, while the MAX6770TALD2/V+T replaces open-drain RESET with push-pull for reduced component count and improved noise immunity - both retain identical regulation, ENABLE behavior, and AEC-Q100 qualification.

Availability

MAX6769TALD2/V+T is available at Aetrix Electronics and suitable for automotive ECU power supply, body electronics always-on rails, and ADAS camera module designs requiring stable component supply with full AEC-Q100 traceability and long-term production support.

Supply support for MAX6769TALD2/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 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 micropower, high-voltage linear regulators with integrated supervision specifically for automotive always-on subsystems requiring ultra-low IQ, wide VIN range, and AEC-Q100 compliance.

FAQ

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

The RESETIN pin on the MAX6769TALD2/V+T enables adjustable brownout detection independent of the 5V output. It compares an external divided voltage against an internal 1.147V threshold (L version), asserting RESET when the monitored voltage falls below the calculated threshold. This allows MAX6769TALD2/V+T to supervise battery voltage, MCU I/O supply, or other rails without loading the main 5V output.

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

No, the MAX6769TALD2/V+T does not require an external capacitor on the TIMEOUT pin because the D2 suffix indicates a factory-trimmed 12.5ms reset timeout period. The TIMEOUT pin is internally connected to OUT, eliminating capacitor tolerance and temperature drift concerns. This simplifies design and improves timing accuracy compared to capacitor-adjusted alternatives.

What is the maximum continuous output current of the MAX6769TALD2/V+T at 85°C ambient?

The MAX6769TALD2/V+T delivers up to 100mA continuous output current under specified conditions, but actual available current at 85°C ambient depends on VIN, VOUT, and PCB thermal design. With VIN = 14V and 5V output, the device dissipates 0.9W; using θJA = 42°C/W (multi-layer board), junction rise is ~38°C, keeping TJ well below 150°C - confirming full 100mA capability at 85°C ambient when properly heatsinked via EP.

How does the ENABLE pin behave when left unconnected on the MAX6769TALD2/V+T?

When left unconnected, the ENABLE pin on the MAX6769TALD2/V+T remains pulled low by an internal 0.6µA current sink, keeping the regulator disabled. To activate MAX6769TALD2/V+T, ENABLE must be driven actively high (≥1.4V) by an external controller - passive pullup is insufficient due to the internal pulldown strength. This fail-safe behavior prevents unintended power-up during assembly or fault conditions.

Is the MAX6769TALD2/V+T pin-compatible with other devices in the MAX6765–MAX6774B family?

Yes, the MAX6769TALD2/V+T shares the same 6-pin TDFN-EP package and pinout as all MAX6765/MAX6766/MAX6769/MAX6770 variants. Pin functions (IN, GND, ENABLE, RESET, TIMEOUT, OUT) are identical across these parts. However, functional differences exist - e.g., MAX6765 lacks RESETIN, and MAX6770 uses push-pull RESET - so electrical compatibility requires verification of supervisory features and output stage type before substitution.