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MAX17409 - 1-Phase Quick-PWM NVIDIA CPU Controller

General Description

The MAX17409 is a 1-phase Quick-PWM™ step-down VID power-supply controller for NVIDIA® graphics power.

The Quick-PWM control provides instantaneous response to fast-load current steps.

Key Features

  • o 1-Phase Quick-PWM Controller o ±6mV VOUT Accuracy Over Line, Load, and Temperature o o o o o o o o o o 6-Bit Graphics DAC (12.5mV LSB) Active Voltage Positioning with Adjustable Gain Accurate Droop and Current Limit Remote Output and Ground Sense Buffered 2V Reference Output for Offsets Power-Good Window Comparator Temperature Comparator Drives Large Synchronous Rectifier FETs 2V to 26V Power Input Range Adjustable Switching Frequency (600kHz max) MAX17409 o Output Overvoltage and Undervolta.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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19-4590; Rev 0; 4/09 www.DataSheet4U.com KIT ATION EVALU E L B AVAILA 1-Phase Quick-PWM NVIDIA CPU Controller General Description The MAX17409 is a 1-phase Quick-PWM™ step-down VID power-supply controller for NVIDIA® graphics power. 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 MAX17409 is intended for two different notebook processor core applications: either bucking down the battery directly to create the core voltage, or bucking down the +5V system supply.