Analog Devices Inc./Maxim Integrated MAX6795TPLD2/V+T

Overview

MAX6795TPLD2/V+T from Maxim Integrated is an automotive-qualified, single-output, high-voltage linear regulator with integrated supervisory functions including reset, watchdog timer, power-fail detection, and hold control. It delivers up to 300mA at 5V output (preset), operates from 5V to 72V input, consumes only 68μA quiescent current, and features a fixed 12.5ms reset timeout (D2) and AEC-Q100 qualification - used in engine control units and body electronics for stable low-power biasing under load-dump conditions.

For engineers reviewing the MAX6795TPLD2/V+T datasheet, MAX6795TPLD2/V+T pinout, MAX6795TPLD2/V+T application, or MAX6795TPLD2/V+T equivalent, key selection criteria include its 72V input tolerance, 300mA output capability, D2-coded 12.5ms reset timeout, HOLD/ENABLE logic for ignition-controlled self-holding, and thermally enhanced 20-pin TQFN package rated for -40°C to +125°C operation.

Technical Context

The MAX6795TPLD2/V+T implements a single high-side pFET-based LDO architecture with internal feedback via SET pin, supporting either preset 5V output or adjustable 1.8V–11V operation. Its supervisory block integrates a comparator-based reset generator triggered at 92.5% of VOUT (L-grade), a fixed 280ms watchdog timeout (CSWT tied to OUT), and a dedicated HOLD input that latches EN active state without external components.

It features dual protection paths: thermal shutdown at +165°C with 20°C hysteresis, and output overvoltage protection clamping at 105–110% of nominal VOUT. The PFI comparator (1.231V threshold) enables battery voltage monitoring, while GATEP drives an external p-channel MOSFET for reverse-battery protection - eliminating series diodes in automotive front-end designs.

Key Specifications

Pinout & Package

Package: 20-pin, 5mm × 5mm thermally enhanced TQFN-EP (exposed pad grounded), capable of dissipating up to 2.7W at TA = +70°C with proper PCB copper area.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX6795TPSD2/V+, the MAX6795TPLD2/V+T offers open-drain RESET for flexible bus interfacing; compared with TLV70733PDPWR, it delivers 12× higher input voltage range, 1.5× output current, integrated supervision, and full automotive qualification - making it irreplaceable in demanding vehicle subsystems.

Availability

MAX6795TPLD2/V+T is available at Aetrix Electronics and suitable for engine control units, body control modules, ADAS camera systems, and telematics control units requiring stable component supply with guaranteed automotive-grade traceability and long-term lifecycle support.

Supply support for MAX6795TPLD2/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 precision analog, mixed-signal, and power-management ICs for automotive, industrial, and communications markets.

The MAX6795TPLD2/V+T belongs to the MAX6791–MAX6796 family of high-voltage micropower regulators engineered specifically for automotive power-supply supervision - integrating LDO regulation, reset generation, watchdog timing, and reverse-battery protection in a single AEC-Q100-qualified package.

FAQ

What output voltage does the MAX6795TPLD2/V+T deliver?

The MAX6795TPLD2/V+T is factory-configured for a fixed 5V output (L-grade preset). This is confirmed by the "L" in the ordering code suffix and verified in the Electrical Characteristics table: VOUT = 4.974V (typ) at 1mA load and 4.945V (typ) at 150mA load. The SET pin is internally connected to GND to select this preset; external resistors are not required unless adjusting to another voltage.

Does the MAX6795TPLD2/V+T support adjustable output voltage?

Yes, the MAX6795TPLD2/V+T supports adjustable output from 1.8V to 11V via the SET pin. Though shipped with 5V preset (L-code), removing the internal SET-to-GND connection and applying an external resistive divider between OUT, SET, and GND enables user-defined regulation. The device's feedback architecture and 1.231V internal reference allow precise adjustment per the formula VOUT = 1.231V × (1 + R1/R2).

What is the meaning of "D2" in MAX6795TPLD2/V+T?

The "D2" in MAX6795TPLD2/V+T denotes the reset timeout period code: D2 specifies a fixed 12.5ms reset assertion duration after VOUT recovers above the reset threshold. This value is internally programmed and does not require external capacitor tuning - distinct from D0 (35μs), D1 (3.125ms), D3 (50ms), or D4 (200ms) variants. It is validated in Table 2 of the datasheet and applies regardless of whether RESET is open-drain or push-pull.

Is the MAX6795TPLD2/V+T pin-compatible with other MAX6795 variants?

Yes, all MAX6795 variants - including MAX6795TPLD2/V+T, MAX6795TPSD2/V+, and MAX6795TP_D_/V+ - share identical 20-pin TQFN-EP packaging and pinout. Differences lie solely in RESET type (open-drain vs. push-pull), output voltage grade (L/M/T/S/Z/Y/W/V), and reset timeout code (D0–D4); no PCB layout change is needed when substituting within the same package variant.

What protection features are built into the MAX6795TPLD2/V+T?

The MAX6795TPLD2/V+T integrates thermal shutdown (+165°C with 20°C hysteresis), short-circuit current limiting (~480mA peak), output overvoltage protection (105–110% of VOUT), reverse-battery protection via GATEP-driven pFET, and input overvoltage tolerance up to +80V absolute maximum. These protections operate autonomously without host intervention, ensuring robust operation in harsh automotive environments.