MAX8796 Reliability Data1/12/2023111K
Features and Benefits
- 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
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.
- 2 to 4 Lithium-Ion (Li+) Cell Battery-to-CPU Core Supply Converters
- Graphics Core Power Supply
- IMVP-6/IMVP-6+ Core Power Supply
- Intel GMCH Crestline/Cantiga
- Voltage-Positioned Step-Down Converters
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Documentation & Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
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