Analog Devices Inc./Maxim Integrated MAX8796GTJ+T

Overview

MAX8796GTJ+T from Maxim Integrated is a 1-phase Quick-PWM™ step-down VID power-supply controller for Intel IMVP-6 and GMCH graphics core applications, supporting ±0.5% VOUT accuracy over line/load/temperature, 7-bit IMVP-6 DAC, and active voltage positioning. It operates from 2V to 26V input, drives synchronous rectifier FETs, and delivers precise core voltage regulation in notebook CPU/GPU power stages.

For engineers reviewing the MAX8796GTJ+T datasheet, MAX8796GTJ+T pinout, MAX8796GTJ+T application, or MAX8796GTJ+T equivalent, key selection considerations include IMVP-6/GMCH compliance, TQFN-32 package compatibility, output-voltage slew-rate control, thermistor-based thermal protection, and integrated power monitoring capability.

Technical Context

The MAX8796GTJ+T implements dual-specification support for both Intel IMVP-6 CPU core and GMCH graphics core power delivery, using Quick-PWM architecture for sub-microsecond load transient response. Its active voltage positioning adjusts output voltage dynamically with load current to minimize bulk capacitance and thermal stress.

It features remote sense inputs for accurate output regulation, adjustable switching frequency up to 600kHz, and integrated boost diodes-enabling single-stage battery-to-core conversion (e.g., 2–4 Li+ cells) or two-stage +5V system rail conversion depending on efficiency vs. size trade-offs.

Key Specifications

Pinout & Package

MAX8796GTJ+T is housed in a 32-pin TQFN package (5mm × 5mm, 0.5mm pitch) with exposed thermal pad (pin 32). The package complies with JEDEC MO-220, outline drawing 21-0140, 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+T, the MAX8796GTJ+T uniquely supports full dual-spec compliance (IMVP-6 CPU + GMCH) in one device, enabling consolidated power design for Atom-based UMPCs without sacrificing CPU voltage accuracy or thermal safety margins.

Availability

MAX8796GTJ+T is available at Aetrix Electronics and suitable for Intel Atom CPU core supplies, GMCH graphics power systems, and voltage-positioned notebook DC-DC converters requiring stable component supply across industrial and embedded production cycles.

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

The MAX8796GTJ+T belongs to Maxim's IMVP-6/GMCH controller product line, engineered specifically for efficient, compact, and thermally robust core power delivery in Intel-based ultra-mobile and notebook platforms.

FAQ

What is the primary function of the MAX8796GTJ+T in Intel notebook platforms?

The MAX8796GTJ+T serves as a 1-phase Quick-PWM step-down controller compliant with both Intel IMVP-6 CPU and GMCH graphics core specifications. It regulates core voltage using VID inputs, implements active voltage positioning, and provides power telemetry via its PWRMON pin-all within a single TQFN-32 package. Its design targets high-efficiency battery-to-core conversion in Atom-based UMPCs and notebooks.

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

Yes, the MAX8796GTJ+T supports dual-spec compliance: it implements the full 7-bit IMVP-6 DAC for CPU core regulation and a separate 5-bit GMCH DAC for graphics core regulation. This enables a single controller to manage both rails in platforms like Intel Cantiga, eliminating the need for separate CPU and GMCH controllers.

What package type and dimensions does the MAX8796GTJ+T use?

The MAX8796GTJ+T uses a 32-pin TQFN package measuring 5mm × 5mm with 0.5mm pitch and an exposed thermal pad (pin 32). Its mechanical outline matches JEDEC MO-220, drawing 21-0140, and land pattern 90-0001-confirmed in Maxim's official ordering information and package documentation.

How does the MAX8796GTJ+T handle thermal protection?

The MAX8796GTJ+T integrates a thermistor-based temperature sensor interface (THRM pin) that enables programmable thermal shutdown and derating. When connected to an NTC thermistor near the CPU/GPU, it triggers fault responses-including PGOOD deassertion and PWM shutdown-based on user-defined thresholds, ensuring safe operation under thermal stress.

Is the MAX8796GTJ+T RoHS-compliant and lead-free?

Yes, the MAX8796GTJ+T is RoHS-compliant and lead-free, as confirmed by Maxim's ordering information and materials analysis reports. The "+" suffix explicitly denotes lead-free packaging, and the device meets JEDEC J-STD-609A Class 2a marking requirements for homogeneous material identification.