Hot-selling and scarce MAX8796GTJ+ 1-Phase Quick-PWM Intel IMVP-6/GMCH Controllers QFN32 spot stock

Product Descriptions

The MAX8796/MAX8797/MAX17401 are 1-phase Quick-PWM™ step-down VID power-supply controllers for Intel notebook CPUs and graphics. The Quick-PWM control provides instantaneous response to fast load current steps. Active voltage positioning reduces power dissipation and bulk output capacitance requirements and allows ideal positioning compensation for tantalum, polymer, or ceramic bulk output capacitors.

The MAX8796/MAX8797/MAX17401 are intended for two different notebook CPU/GPU core applications: either bucking down the battery directly to create the core voltage, or else bucking down the +5V system supply. The single-stage conversion method allows this device to directly step down high-voltage batteries for the highest possible efficiency. Alternatively, 2-stage conversion (stepping down the +5V system supply instead of the battery) at higher switching frequency provides the minimum possible physical size.

A slew-rate controller allows controlled transitions between VID codes. A thermistor-based temperature sensor provides programmable thermal protection. A power monitor provides an analog voltage output proportional to the power consumed by the CPU/GPU.

The MAX8796/MAX17401 implement both the Intel IMVP-6 CPU core specifications, as well as the Intel GMCH graphics core specifications. The MAX8797 implements the Intel GMCH graphics core specifications. The MAX8796/MAX17401 are available in a 32-pin TQFN package. The MAX8797 is available in a 28-pin TQFN package.

Product Features

1-Phase Quick-PWM Controllers

±0.5% VOUT Accuracy Over Line, Load, and Temperature

7-Bit IMVP-6 DAC (MAX8796/MAX17401 Only)

5-Bit GMCH DAC

Active Voltage Positioning with Adjustable Gain

Accurate Droop and Current Limit

Remote Output and Ground Sense

Adjustable Output-Voltage Slew Rate

Power-Good Window Comparator

Power Monitor

Temperature Comparator

Drives Large Synchronous Rectifier FETs

2V to 26V Power Input Range

Adjustable Switching Frequency (600kHz max)

Output Overvoltage Protection (MAX8796/MAX8797 Only)

Undervoltage and Thermal-Fault Protection

Soft-Startup and Soft-Shutdown

Internal Boost Diodes

Product Applications

2 to 4 Lithium-Ion (Li+) Cell Batteryto-CPU Core Supply Converters

Graphics Core Power Supply

IMVP-6/IMVP-6+ Core Power Supply

Intel GMCH Crestline/Cantiga

Notebooks/Desktops/Servers

Voltage-Positioned Step-Down Converters

Product Specification

Product Photos

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