</a>led" title="led">led" title="led">led independently by writing the appropriate data into a function mapped register file. A slew-rate controller allows controlled transitions between VID codes with controlled soft-start. The SVID interface also allows each regulator to be individually set into a low-power pulse-skipping state. Individual phases can be shut down based on the processors’ operating conditions to optimize efficiency. The MAX17039 is available in a lead-free, 56-pin, 7mm x 7mm TQFN package.

MAX17039主要特性:

Three-Phase Quick-PWM™ CPU Core (Regulator A)

Two Internal Drivers and One External Driver

Active Overshoot Suppression

Transient-Phase Overlap Mode

Dynamic Phase Selection

Phase-Good Fault Detection (Internal)

One-Phase Quick-PWM with Internal Driver (Regulator B)

8-Bit IMVP7 DAC

± 0.4% V_OUT Accuracy Over Line, Load, and Temperature

Active Voltage Positioning with Programmable Gain

Accurate Lossless Current Balance

Accurate Droop and Current Limit

Remote Output and Ground Sense

Power-Good Window Comparators (VR__READY)

Output Current Monitors (IMON_)

4.5V to 26V Battery-Input Range

Drives Large Synchronous Rectifier MOSFETs

Programmable 100kHz to 600kHz Switching Frequency

External Thermal-Fault Detection (VR_HOT#) Output

Overvoltage, Undervoltage, and Thermal-Fault Protection

Soft-Start and Soft-Shutdown

Integrated Boost Switches

Low-Profile, 56-Pin TQFN Package

MAX17039应用:

Notebooks/Desktops/Servers

Voltage-Positioned Step-Down Converters

VR12/IMVP7 CPU Core Power Supplies

MAX17039评估板

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.

MAX17039评估板主要特性:

MAX17039:

Intel IMVP-7 Serial VID-Compliant 25MHz Interface

0 to 1.5200V Output-Voltage Range

7V to 20V Input-Voltage Range

Core CPU SMPS

3-Phase, Fast-Response Interleaved, Quick-PWM

Two Internal Drivers + One External Driver (MAX8791)

Transient-Suppression Feature

99A Peak Load-Current Capability (33A Each Phase)

350kHz Switching Frequency (per Phase)

Core GPU SMPS

1-Phase, Fast-Response Internal Driver Quick-PWM

33A Peak Load-Current Capability

440kHz Switching Frequency

Active Voltage Positioning with Adjustable Gain

Power-Good (VR__READY) Outputs

External Thermal-Fault Detection (VR_HOT)

Output Current Monitors (IMON_)

Overvoltage-, Undervoltage-, and Thermal-Fault Protections

56-Pin Thin QFN Package

MAX17000:

Complete DDR Supplies: VCCDDR, VTTDDR, VTTR

7V to 20V Input-Voltage Range

400kHz Switching Frequency

10A Output Current Capability (VCCDDR)

2A Output Current Capability (VTTDDR)

3mA Output Current Capability (VTTR)

Overvoltage Protection

Power-Good Output Indicators (D15 and D16)

24-Pin Thin QFN Package

MAX17007A:

I/O Supplies: VTT1 and VTT2

7V to 20V Input-Voltage Range

300kHz Switching Frequency

6A Output Current Capability (VTT1)

21A Output Current Capability (VTT2)

Overvoltage-, Undervoltage-, and Thermal-Fault Protections

Power-Good Output Indicators (D19 and D20)

28-Pin Thin QFN Package

图1.MAX17039评估板电路图(1)

图2.MAX17039评估板电路图(2)

图3.MAX17039评估板电路图(3)

图4.MAX17039评估板电路图(4)

图5.MAX17039评估板电路图(5)

图6.MAX17039评估板电路图(6)

图7.MAX17039评估板电路图(7)

MAX17039评估板材料清单(BOM):





图8.MAX17039评估板元件布局图
详情请见:
http://datasheets.maxim-ic.com/en/ds/MAX17039EVKIT.pdf