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MAX17480 Dataheets PDF



Part Number MAX17480
Manufacturers Maxim Integrated Products
Logo Maxim Integrated Products
Description AMD 2-/3-Output Mobile Serial VID Controller
Datasheet MAX17480 DatasheetMAX17480 Datasheet (PDF)

19-4443; Rev 0; 2/09 www.DataSheet4U.com KIT ATION EVALU E L B AVAILA AMD 2-/3-Output Mobile Serial VID Controller General Description Features o Dual-Output Fixed-Frequency Core Supply Controller Split or Combinable Outputs Detected at Power-Up Dynamic Phase Selection Optimizes Active/Sleep Efficiency Transient Phase Repeat Reduces Output Capacitance True Out-of-Phase Operation Reduces Input Capacitance Programmable AC and DC Droop Accurate Current Balance and Current Limit Integrated Drivers.

  MAX17480   MAX17480


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19-4443; Rev 0; 2/09 www.DataSheet4U.com KIT ATION EVALU E L B AVAILA AMD 2-/3-Output Mobile Serial VID Controller General Description Features o Dual-Output Fixed-Frequency Core Supply Controller Split or Combinable Outputs Detected at Power-Up Dynamic Phase Selection Optimizes Active/Sleep Efficiency Transient Phase Repeat Reduces Output Capacitance True Out-of-Phase Operation Reduces Input Capacitance Programmable AC and DC Droop Accurate Current Balance and Current Limit Integrated Drivers for Large SynchronousRectifier MOSFETs Programmable 100kHz to 600kHz Switching Frequency 4V to 26V Battery Input Voltage Range o 4A Internal Switch Northbridge SMPS 2.7V to 5.5V Input Voltage Range 2x Programmable Switching Frequency 75mΩ/40mΩ Power Switches o ±0.5% VOUT Accuracy over Line, Load, and Temperature o AMD SVI-Compliant Serial Interface with Switchable Address o 7-Bit On-Board DAC: 0 to +1.550V Output Adjust Range o Integrated Boost Switches o Adjustable Slew-Rate Control o Power-Good (PWRGD) and Thermal-Fault (VRHOT) Outputs o System Power-OK (PGD_IN) Input o Overvoltage, Undervoltage, and Thermal-Fault Protection o Voltage Soft-Startup and Passive Shutdown o < 1µA Typical Shutdown Current MAX17480 The MAX17480 is a triple-output, step-down, fixedfrequency controller for AMD’s serial VID interface (SVI) CPU and northbridge (NB) core supplies. The MAX17480 consists of two high-current SMPSs for the CPU cores and one 4A internal switch SMPS for the NB core. The two CPU core SMPSs run 180° out-of-phase for true interleaved operation, minimizing input capacitance. The 4A internal switch SMPS runs at twice the switching frequency of the core SMPS, reducing the size of the external components. The MAX17480 is fully AMD SVI compliant. Output voltages are dynamically changed through a 2-wire SVI, allowing the SMPSs to be individually programmed to different voltages. A slew-rate controller allows controlled transitions between VID codes and controlled soft-start. SVI also allows each SMPS to be individually set into a low-power pulse-skipping state. Transient phase repeat improves the response of the fixed-frequency architecture, reducing the total output capacitance for the CPU core. A thermistor-based temperature sensor provides a programmable thermal-fault output (VRHOT). The MAX17480 includes output overvoltage protection (OVP), undervoltage protection (UVP), and thermal protection. When any of these protection features detect a fault, the controller shuts down. True differential current sensing improves current limit and load-line accuracy. The MAX17480 has an adjustable switching frequency, allowing 100kHz to 600kHz operation per core SMPS, and twice that for the NB SMPS. Applications Mobile AMD SVI Core Supplies Multiphase CPU Core Supplies Voltage-Positioned, Step-Down Converters Notebook/Desktop Computers Ordering Information PART TEMP RANGE PIN-PACKAGE MAX17480GTL+ -40°C to +105°C 40 TQFN-EP* +Denotes a lead(Pb)-free/RoHS-compliant package. *EP = Exposed pad. Pin Configuration appears at end of data sheet. ________________________________________________________________ Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. www.DataSheet4U.com AMD 2-/3-Output Mobile Serial VID Controller MAX17480 ABSOLUTE MAXIMUM RATINGS (Note 1) VDD, VIN3, VCC, VDDIO to AGND ..............................-0.3V to +6V LX2 to BST2..............................................................-6V to +0.3V PWRGD to AGND .....................................................-0.3V to +6V LX3 to PGND (Note 2) ..............................................-0.6V to +6V SHDN to AGND ........................................................-0.3V to +6V DH1 to LX1 ..............................................-0.3V to (VBST1 + 0.3V) DH2 to LX2 ..............................................-0.3V to (VBST2 + 0.3V) GNDS1, GNDS2, THRM, VRHOT to AGND..............-0.3V to +6V DL1 to PGND ..............................................-0.3V to (VDD + 0.3V) CSP_, CSN_, ILIM12 to AGND .................................-0.3V to +6V DL2 to PGND ..............................................-0.3V to (VDD + 0.3V) SVC, SVD, PGD_IN to AGND ...................................-0.3V to +6V Continuous Power Dissipation (TA = +70°C) FBDC_, FBAC_, OUT3 to AGND ..............................-0.3V to +6V 40-Pin TQFN (derate 22.2mW/°C above +70°C) .......1778mW OSC, TIME, OPTION, ILIM3 to AGND ........-0.3V to (VCC + 0.3V) BST1, BST2 to AGND .............................................-0.3V to +36V Operating Temperature Range .........................-40°C to +105°C BST1, BST2 to VDD .................................................-0.3V to +30V Junction Temperature ......................................................+150°C BST3 to AGND...................................(VDD - 0.3V) to (VLX3 + 6V) Storage Temperature Range ........


HSU-07 MAX17480 MAX14525


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