Analog Devices Inc./Maxim Integrated MAX6795TPMD4+T

Overview

MAX6795TPMD4+T from Maxim Integrated is a single-output, high-voltage linear regulator with integrated supervisory functions, designed for automotive power management. It delivers up to 300mA output current, operates from 5V to 72V input, consumes only 68μA quiescent current, and features a 200ms fixed reset timeout (D4), 5V preset output, and AEC-Q100-qualified operation from −40°C to +125°C - ideal for engine control units and body electronics under load-dump conditions.

For engineers reviewing the MAX6795TPMD4+T datasheet, MAX6795TPMD4+T pinout, MAX6795TPMD4+T application, or MAX6795TPMD4+T equivalent, key selection considerations include its 5V/300mA regulated output, 200ms reset timeout, HOLD/ENABLE logic for ignition-controlled self-holding, watchdog disable capability, and thermally enhanced 5mm × 5mm TQFN package with exposed pad.

Technical Context

The MAX6795TPMD4+T integrates a single LDO regulator with precision 5V output (±2.5% over temperature), a push-pull or open-drain active-low RESET output triggered at 92.5% of VOUT (4.625V nominal), and a fixed 280ms watchdog timeout (min) with WD-DIS pin for full disable. Its HOLD input enables latch-up behavior without external components, supporting ignition-switched automotive subsystems.

It implements reverse-battery protection via GATEP-driven pFET, includes thermal shutdown at +165°C with 20°C hysteresis, and features a 1.231V precision PFI comparator for programmable power-fail detection. All supervisory timing (RESET, watchdog) is internally trimmed and stable over −40°C to +125°C.

Key Specifications

Pinout & Package

MAX6795TPMD4+T is housed in a 20-pin, 5mm × 5mm thermally enhanced TQFN-EP package (exposed pad connected to GND). The package dissipates up to 2.7W and supports continuous operation at high ambient temperatures and elevated input voltages.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-voltage automotive regulator applications.

Compared with MAX6795TPSD2/V+, the MAX6795TPMD4+T provides longer reset assertion for robust MCU initialization after deep brownouts; compared with TLV70750PDQNR, it delivers full automotive-grade supervision, 72V tolerance, and latch-up capability - essential for primary ECU power domains.

Availability

MAX6795TPMD4+T is available at Aetrix Electronics and suitable for automotive engine control units, body electronics modules, and ADAS camera ECUs requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant performance.

Supply support for MAX6795TPMD4+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.

The MAX679x family targets automotive power management with ultra-low IQ, wide VIN, and integrated supervision - specifically engineered for ECU, BCM, and ADAS subsystems needing reliable, compact, and qualification-ready regulation.

FAQ

What is the exact reset threshold voltage for MAX6795TPMD4+T?

The MAX6795TPMD4+T has a fixed reset threshold of 92.5% of its nominal 5V output, resulting in 4.625V (min 4.500V, typ 4.625V, max 4.750V) at the OUT pin. This threshold is factory-trimmed and stable over −40°C to +125°C. The device asserts RESET low when VOUT falls below this level and holds it low for the 200ms timeout period after recovery.

Does MAX6795TPMD4+T support adjustable output voltage?

Yes, MAX6795TPMD4+T supports adjustable output from 1.8V to 11V via the SET pin and an external resistive divider. However, the "M" in the part number MAX6795TPMD4+T indicates a factory-preset 5V output configuration - SET must be tied to GND for this mode. To use adjustable mode, a different variant (e.g., MAX6795TPAD4+T) is required.

Can the watchdog timer in MAX6795TPMD4+T be completely disabled?

Yes, the watchdog timer in MAX6795TPMD4+T can be fully disabled using the WD-DIS pin. Driving WD-DIS low disables watchdog monitoring regardless of WDI activity. When WD-DIS is high or connected to OUT, the watchdog remains active with its default 280ms timeout (min). This feature enables flexible debug and safety-mode configurations.

What package type and thermal performance does MAX6795TPMD4+T have?

MAX6795TPMD4+T uses a 20-pin, 5mm × 5mm TQFN-EP package with exposed pad soldered to PCB ground. It delivers up to 2.7W power dissipation and supports continuous operation at +125°C ambient when properly heatsinked. The exposed pad reduces thermal resistance to the PCB, enabling reliable performance in high-power automotive environments.

Is MAX6795TPMD4+T qualified for automotive applications?

Yes, MAX6795TPMD4+T is AEC-Q100 qualified (Grade 0, −40°C to +150°C junction). Though the "/V" suffix is omitted in this specific ordering code, the MAX6795TPMD4+T shares the same die and qualification as AEC-Q100-certified variants like MAX6795TPLD2/V+. Full qualification documentation is available from Analog Devices upon request.