Analog Devices Inc./Maxim Integrated MAX6795TPVD4+

Overview

The MAX6795TPVD4+ from Maxim Integrated is a single-output, high-voltage linear regulator with integrated supervisory functions-including reset, watchdog timer, power-fail detection, and hold control-designed for automotive systems. It operates from 5V to 72V input, delivers up to 300mA output current, features 68μA quiescent current, and provides a fixed 5V output with 200ms reset timeout (D4 variant). It is used in engine control units (ECUs) and body control modules where load-dump resilience and low-power supervision are critical.

For engineers reviewing the MAX6795TPVD4+ datasheet, MAX6795TPVD4+ pinout, MAX6795TPVD4+ application, or MAX6795TPVD4+ equivalent, this page delivers verified technical context, exact pin roles, automotive-grade thermal and protection specs, and real-world selection guidance-not generic timing or power management claims.

Technical Context

The MAX6795TPVD4+ implements a single LDO regulator with internal pFET pass element, supporting 5V fixed output (±2.5% over -40°C to +125°C) and dropout as low as 120mV at 20mA. Its supervisory block integrates a push-pull RESET output with 92.5% reset threshold (relative to VOUT), capacitor-adjustable or fixed 200ms reset timeout (CSRT = D4), and a 280ms min watchdog timeout (CSWT = OUT) with WD-DIS disable capability.

It includes ENABLE and HOLD inputs enabling self-holding circuitry without external components: HOLD low sustains regulation even after ENABLE returns low; releasing HOLD shuts down the output. The device also integrates reverse-battery protection via GATEP-driven pFET and a 1.231V precision PFI comparator with 35µs propagation delay.

Key Specifications

Pinout & Package

MAX6795TPVD4+ uses a 20-pin, 5mm × 5mm thermally enhanced TQFN-EP package (exposed pad connected to GND), rated for 2.7W dissipation at +70°C ambient. Pin count and layout match the MAX6791–MAX6796 family; no dual-output pins (OUT2/ENABLE2) are bonded or functional on this single-output variant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX6795TPVD4+, the MAX6795TPSD2/V+ offers identical supervision architecture with automotive qualification but targets 3.3V systems, while TLV70733PDQNR lacks high-voltage tolerance and supervisory features entirely-making it unsuitable for automotive power-rail monitoring.

Availability

MAX6795TPVD4+ is available at Aetrix Electronics and suitable for engine control units, body control modules, and ADAS camera ECUs requiring stable component supply across extended temperature and high-voltage automotive environments.

Supply support for MAX6795TPVD4+ 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 precision analog, mixed-signal, and power-management ICs for demanding industrial, automotive, and communications applications.

The MAX6791–MAX6796 product line delivers high-voltage, micropower linear regulators with integrated supervision-engineered specifically for automotive ECU power architectures needing load-dump resilience, ultra-low IQ, and deterministic reset behavior.

FAQ

What output voltage does the MAX6795TPVD4+ provide?

The MAX6795TPVD4+ provides a fixed 5V output with ±2.5% accuracy over -40°C to +125°C. This is set by internal feedback; the SET pin is tied to GND in this variant. It cannot be adjusted - unlike versions with "A" or "V" suffixes that support 1.8V–11V via external resistors. The MAX6795TPVD4+ delivers up to 300mA with dropout as low as 120mV at 20mA.

How is the 200ms reset timeout configured on the MAX6795TPVD4+?

The MAX6795TPVD4+ uses the D4 reset timeout option: CSRT pin is internally connected to OUT, selecting a factory-trimmed 200ms reset assertion period after VOUT recovers above its 92.5% threshold. No external capacitor is required. This value is guaranteed across temperature and process variation - confirmed in Electrical Characteristics Table (tRP, D4 row: 140ms to 260ms).

Does the MAX6795TPVD4+ include watchdog functionality, and how is it enabled?

Yes, the MAX6795TPVD4+ includes a watchdog timer with 280ms minimum timeout. It is enabled by default when WD-DIS is left open or pulled high (to OUT); driving WD-DIS low disables it. WDI must receive a rising or falling edge within each timeout window to prevent RESET assertion. The timeout is fixed (CSWT = OUT) - no capacitor needed.

What is the purpose of the HOLD pin on the MAX6795TPVD4+?

The HOLD pin on the MAX6795TPVD4+ enables self-holding behavior: when driven low after ENABLE turns the regulator on, the output remains active even if ENABLE later goes low. Releasing HOLD (pulling high or disconnecting) shuts down OUT. This eliminates external latch circuitry in ignition-switched automotive systems - a key design feature confirmed in the Functional Diagram and Detailed Description sections.

Is the MAX6795TPVD4+ qualified for automotive use per AEC-Q100?

The MAX6795TPVD4+ itself is not explicitly AEC-Q100 qualified per the datasheet - only MAX6795TPLD2/V+ and MAX6795TPSD2/V+ carry the /V+ suffix denoting automotive qualification. However, it shares the same die and TQFN-EP package; qualification testing was performed on those /V+ variants. For production automotive designs requiring formal qualification, those /V+ parts must be selected instead of MAX6795TPVD4+.