Evaluation Kit for the MAX17000, MAX17007A, and MAX17039 (MAX17039EVKIT) (MAX17039EVKIT)
The MAX17039 evaluation kit (EV kit) demonstrates the high-power, dynamically adjustable, multiphase IMVP-7 notebook application circuit. This DC-DC converter steps down high-voltage batteries and/or AC adapters, generating two precision, low-voltage CPU/GPU core rails. The EV kit meets the Intel mobile IMVP-7 CPU's transient voltage specification, power-good signaling, voltage regulator thermal monitoring (active-low VR_HOT), power-good outputs (VR__READY), and serial VID communication and control specification. The MAX17039 consists of two high-current SMPSs for the CPU and GPU cores. The CPU regulator is a 3-phase interleaved Quick-PWM™ architecture with one MAX8791 single-synchronous MOSFET driver. The second GPU regulator is also a 1-phase Quick-PWM architecture. The 3-phase CPU core SMPS runs 120° out-of-phase for true interleaved operation, minimizing input capacitance.
Both CPU/GPU output voltages are controlled independently and are dynamically changed through a 3-wire serial VID interface (3-wire SVID: VCLK, VDIO, active-low ALERT), allowing the switching regulators to be individually programmed to different voltages. The EV kit includes active voltage positioning with adjustable gain, reducing power dissipation and bulk output capacitance requirements. A slew-rate controller allows controlled transitions among VID codes, controlled soft-start, and shutdown. SVID also allows each regulator to be individually set into a low-power, pulse-skipping state.
The MAX17039 provides a digitally adjustable 0 to 1.5200V output-voltage range from a 7V to 20V battery-input range. Each phase of the CPU core SMPS is designed for a 20A thermal-design current and delivers up to 33A peak output current for a total of 99A. The 1-phase GPU core SMPS is designed for 20A thermal-design current and delivers up to 33A peak output current. The CPU core SMPS operates at 350kHz switching frequency (per phase) and has superior line- and load-transient response. The GPU core SMPS operates at 440kHz switching frequency relative CPU core SMPS.
The MAX17039 EV kit also evaluates the MAX17000 and MAX17007A DC-DC converters. The EV kit also includes Windows® 2000-, Windows XP®-, and Windows Vista®-compatible software that provides a simple graphical user interface (GUI) for exercising the features of the MAX17039.
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