Analog Devices Inc./Maxim Integrated MAX8796GTJ+G1D

Overview

MAX8796GTJ+G1D from Maxim Integrated is a 1-phase Quick-PWM™ step-down VID power-supply controller for Intel IMVP-6/6+ CPU and GMCH graphics core applications, featuring ±0.5% VOUT accuracy over line/load/temperature, 7-bit IMVP-6 DAC, active voltage positioning, and 2V–26V input range. It supports single-stage battery-to-core conversion in Atom-based UMPCs and notebooks.

For engineers reviewing the MAX8796GTJ+G1D datasheet, MAX8796GTJ+G1D pinout, MAX8796GTJ+G1D application, or MAX8796GTJ+G1D equivalent, key selection considerations include IMVP-6/GMCH dual-spec compliance, TQFN-32 package compatibility, thermal protection via thermistor interface, power monitoring output, and output overvoltage protection.

Technical Context

The MAX8796GTJ+G1D implements both Intel IMVP-6 CPU core and GMCH graphics core specifications, enabling unified power management for dual-domain systems. Its Quick-PWM control architecture delivers instantaneous response to fast load transients, while active voltage positioning dynamically adjusts output voltage based on load current to minimize bulk capacitance and power loss.

A dedicated slew-rate controller manages VID code transitions, and a thermistor-based temperature sensor enables programmable thermal shutdown. The device drives large synchronous rectifier FETs and includes internal boost diodes, undervoltage/thermal-fault protection, soft-startup/shutdown, and a power-good window comparator.

Key Specifications

Pinout & Package

MAX8796GTJ+G1D is housed in a 32-pin thin quad flat no-lead (TQFN) package with 5mm × 5mm body and 0.5mm pitch, featuring an exposed thermal pad for enhanced power dissipation. Pin functions are validated per Maxim's official outline drawing 21-0140 and land pattern 90-0001.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar IMVP-6/GMCH controller applications.

Compared with MAX17401 and MAX8797GTI+, the MAX8796GTJ+G1D uniquely combines full IMVP-6 CPU + GMCH graphics compliance, output overvoltage protection, and 32-pin TQFN packaging - making it the sole option for integrated dual-domain core power in compact notebook platforms.

Availability

MAX8796GTJ+G1D is available at Aetrix Electronics and suitable for Intel Atom notebook designs, UMPC graphics power supplies, and IMVP-6+ laptop CPU applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.

Supply support for MAX8796GTJ+G1D 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) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for computing, communications, and industrial markets.

The MAX8796GTJ+G1D belongs to Maxim's IMVP-6/GMCH controller product line, designed specifically for efficient, compact, and standards-compliant core power delivery in Intel-based mobile computing platforms.

FAQ

What is the primary function of the MAX8796GTJ+G1D in Intel-based systems?

The MAX8796GTJ+G1D serves as a 1-phase Quick-PWM step-down controller that regulates core voltage for both Intel IMVP-6-compliant CPUs and GMCH graphics controllers. It interprets VID codes, implements active voltage positioning, and delivers tightly regulated output with ±0.5% accuracy - ensuring stable operation during rapid CPU/GPU load transients in notebooks and UMPCs.

Does the MAX8796GTJ+G1D support both CPU and GPU core power regulation?

Yes, the MAX8796GTJ+G1D supports dual-domain regulation: its 7-bit IMVP-6 DAC handles CPU core voltage scaling, while its separate 5-bit GMCH DAC controls graphics core voltage per Intel GMCH specifications. This allows a single controller to manage both domains in space-constrained mobile platforms without requiring additional regulators.

What package type and footprint does the MAX8796GTJ+G1D use?

The MAX8796GTJ+G1D uses a 32-pin TQFN package (5mm × 5mm, 0.5mm pitch) with exposed thermal pad, documented in Maxim's outline drawing 21-0140 and land pattern 90-0001. This package supports high-current operation and thermal reliability in dense notebook PCB layouts.

Is output overvoltage protection available on the MAX8796GTJ+G1D?

Yes, the MAX8796GTJ+G1D includes dedicated output overvoltage protection (OVP) circuitry - a feature confirmed in the official description and shared with MAX8797 but not present in MAX17401. This OVP function independently monitors VOUT and forces immediate shutdown if the voltage exceeds safe limits, protecting sensitive CPU/GPU silicon.

How does the MAX8796GTJ+G1D implement thermal protection?

The MAX8796GTJ+G1D implements thermal protection via its THRM pin, which interfaces directly with an external NTC thermistor placed near the CPU or GPU. The internal temperature comparator triggers shutdown when the sensed temperature exceeds a user-programmed threshold - providing adjustable, system-specific thermal safety without requiring external logic.