MAX17410 19-4438 Rev 0 1/09 Dual-Phase, Quick-PWM Controller for IMVP6+ CPU Core Power Supplies General Description Features Dual-/Single-Phase Interleaved Quick-PWM The MAX17410 is a 2-/1-phase interleaved Quick- Controller PWM step-down VID power-supply controller for notebook IMVP6+ CPUs. True out-of-phase operation 0.5% V Accuracy Over Line, Load, and OUT Temperature reduces input ripple current requirements and output voltage ripple while easing component selection and 7-Bit IMVP6+ DAC layout difficulties. The Quick-PWM control scheme pro- Dynamic Phase Selection Optimizes Active/Sleep vides instantaneous response to fast load current Efficiency steps. Active voltage positioning reduces power dissi- Transient Phase Overlap Reduces Output pation and bulk output capacitance requirements and Capacitance allows ideal positioning compensation for tantalum, Active Voltage Positioning with Adjustable Gain polymer, or ceramic bulk output capacitors. Accurate Lossless Current Balance The MAX17410 is intended for two different CPU core Accurate Droop and Current Limit applications: either bucking down the battery directly to Remote Output and Ground Sense create the core voltage, or bucking down the +5V sys- tem supply. The single-stage conversion method allows Adjustable Output Slew-Rate Control this device to directly step down high-voltage batteries Power-Good Window Comparator for the highest possible efficiency. Alternatively, 2-stage Power Monitor conversion (stepping down the +5V system supply Programmable Thermal-Fault Protection instead of the battery) at higher switching frequency provides the minimum possible physical size. Phase Fault Output (PHASEGD) Drives Large Synchronous Rectifier FETs A slew-rate controller allows controlled transitions between VID codes. A thermistor-based temperature 4.5V to 26V Battery Input Range sensor provides programmable thermal protection. A Output Overvoltage and Undervoltage Protection power monitor provides a buffered analog voltage out- Soft-Startup and Soft-Shutdown put proportional to the power delivered to the load. Integrated Boost Switches The MAX17410 is available in a 48-pin, 7mm x 7mm Low-Profile 7mm x 7mm, 48-Pin TQFN Package TQFN package. Applications Pin Configuration IMVP6+ Core Supply TOP VIEW Multiphase CPU Core Supply Voltage-Positioned, Step-Down Converters 36 35 34 33 32 31 30 29 28 27 26 25 D0 24 CSP1 37 Notebook/Desktop Computers D1 38 23 CSP2 39 22 V D2 CC D3 40 21 GND D4 41 20 IN D5 42 19 CSPAVG Ordering Information MAX17410 43 18 CSN1 D6 17 SHDN 44 CSN2 PART TEMP RANGE PIN-PACKAGE DPRSLPVR 45 16 CCI MAX17410GTM+ -40C to +105C 48 TQFN-EP* DPRSTP 15 GNDS 46 +Denotes a lead(Pb)-free/RoHS-compliant package. CLKEN 47 14 OUTS *EP = Exposed pad. 48 13 ILIM V3P3 1 2 34 5 67 89 10 11 12 Quick-PWM is a trademark of Maxim Integrated Products, Inc. THIN QFN Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com. EVALUATION KIT AVAILABLE PWRGD BST1 DH1 PSI PMON LX1 THRM PGND1 VRHOT DL1 NTC V DD PHASEGD DL2 PGDIN PGND2 LX2 FB DH2 VPS SGND BST2 TIME N.C.Dual-Phase, Quick-PWM Controller for IMVP6+ CPU Core Power Supplies ABSOLUTE MAXIMUM RATINGS V , V , V3P3 to GND...........................................-0.3V to +6V DL to GND ................................................-0.3V to (V + 0.3V) CC DD DD D0D6, PSI, DPRSLPVR, DPRSTP to GND ..............-0.3V to +6V BST to V ............................................................-0.3V to +30V DD CSPAVG, CSP , CSN , ILIM to GND .......................-0.3V to +6V LX to BST ..............................................................-6V to +0.3V PWRGD, PHASEGD, VRHOT to GND ......................-0.3V to +6V DH to LX ...............................................-0.3V to (V - +0.3V) BST FB, OUTS, CCI, TIME, PMON to GND........-0.3V to (V + 0.3V) Continuous Power Dissipation (48-pin, 7mm x 7mm TQFN) CC PGDIN, NTC, THRM to GND ......................-0.3V to (V + 0.3V) Up to +70C ..............................................................2222mW CC CLKEN to GND..........................................-0.3V to (V + 0.3V) Derating Above +70C ..........................................27.8mW/C 3P3 VPS to OUTS .........................................................-0.3V to +0.3V Operating Temperature Range .........................-40C to +105C SHDN to GND (Note 1)...........................................-0.3V to +30V Junction Temperature......................................................+150C IN to GND...............................................................-0.3V to +30V Storage Temperature Range .............................-65C to +165C GNDS, SGND, PGND to GND .............................-0.3V to +0.3V Lead Temperature (soldering, 10s) .................................+300C Note 1:SHDN may be forced to 12V for the purpose of debugging prototype breadboards using the no-fault test mode. Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS (Circuit of Figure 1, V = 10V, V = V = V = V = V = V = 5V, V = 3.3V, V = V = V = IN CC DD SHDN PGDIN ILIM V3P3 DPRSLPVR DPRSTP GNDS PSI V = 0, CSPAVG = CSP = CSN = OUTS = 1.0000V, R = 3.57k from FB to VPS, D6D0 = 0101000 T = 0C to +85C, PGND FB A unless otherwise noted. Typical values are at T = +25C.) A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS PWM CONTROLLER V , V 4.5 5.5 CC DD Input Voltage Range V3P3 3.0 3.6 V IN 4.5 26 DAC codes from -0.5 +0.5 % Measured at FB with 0.8125V to 1.5000V respect to GNDS, DAC codes from DC Output Voltage Accuracy V includes load -7 +7 OUT 0.3750V to 0.8000V regulation error mV (Note 2) DAC codes from -20 +20 0 to 0.3625V Boot Voltage V 1.192 1.200 1.209 V BOOT Line Regulation Error V = 4.5V to 5.5V, V = 4.5V to 26V 0.1 % CC IN OUTS Input Bias Current VPS floating, T = +25C -0.1 +0.1 A A OUTS-to-VPS Resistance 3.5 10 40 SGND-to-AGND Resistance 2.5 GNDS Input Range -200 +200 mV GNDS Gain A V / V 0.97 1.00 1.03 V/V GNDS OUT GNDS GNDS Input Bias Current I V(OUTS, GNDS) = 1.0V -15 -10 -4 A GNDS TIME Regulation Voltage V R = 71.5k 1.985 2.000 2.015 V TIME TIME 2 MAX17410