MAX17411GTM+T

MAX17411GTM+T Datasheet


The MAX17411/MAX17511/MAX17511C/MAX17511N/ MAX17511T are dual-output, step-down, constant on-time Quick-PWMK controllers for VR12/IMVP-7 CPU core supplies. The controllers consist of two high-current switching power supplies for CPU and GFX cores. The CPU regulator A is a three-phase constant on-time architecture. The GFX regulator B is also constant on-time architecture. The MAX17411 supports 2-phase operation and the MAX17511/MAX17511C/MAX17511N/MAX17511T support 1-phase operation. The MAX17411/MAX17511/ MAX17511C/MAX17511N/MAX17511T include two internal drivers on regulator A and one internal driver on regulator B. External drivers such as the MAX17491 enable the additional phases.

Part Datasheet
MAX17411GTM+T MAX17411GTM+T MAX17411GTM+T (pdf)
Related Parts Information
MAX17511GTL+T MAX17511GTL+T MAX17511GTL+T
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Dual-Output, 3-/2-/1-Phase + 2-/1-Phase Quick-PWM Controllers for VR12/IMVP7

The MAX17411/MAX17511/MAX17511C/MAX17511N/ MAX17511T are dual-output, step-down, constant on-time Quick-PWMK controllers for VR12/IMVP-7 CPU core supplies. The controllers consist of two high-current switching power supplies for CPU and GFX cores. The CPU regulator A is a three-phase constant on-time architecture. The GFX regulator B is also constant on-time architecture. The MAX17411 supports 2-phase operation and the MAX17511/MAX17511C/MAX17511N/MAX17511T support 1-phase operation. The MAX17411/MAX17511/ MAX17511C/MAX17511N/MAX17511T include two internal drivers on regulator A and one internal driver on regulator B. External drivers such as the MAX17491 enable the additional phases.

Both regulator A and regulator B include output voltage sensing and accurate load-line gain. Switching frequencies are programmable from 200kHz to 600kHz per phase. Output overvoltage protection OVP, MAX17411/ MAX17511/MAX17511C/MAX17511N , undervoltage protection UVP , and thermal protection ensure effective and reliable operation. When any of these protection features detect a fault, the controller shuts down both outputs.

The multiphase regulators include transient-phase overlap and active overshoot suppression, which speed up the response time and reduce the total output capacitance. The CPU and GFX outputs are controlled independently by writing the appropriate data into a functionmapped register file. VID code transitions and soft-start are enabled with a precision slew-rate control circuit. The SVID interface also allows each regulator to be individually set into a low-power, single-phase, pulse-skipping state to optimize efficiency. The MAX17411 is available in a 48-pin, 6mm x 6mm, TQFN package. The MAX17511/ MAX17511C/MAX17511N/MAX17511T are available in a 40-pin, 5mm O 5mm, TQFN lead-free package.

VR12/IMVP-7 CPU Core Power Supplies

Notebooks / Desktops/Servers

S Intel VR12/IMVP-7-Compliant Serial Interface S 3-/2-/1-Phase Quick-PWM CPU Core Regulator Two Internal Drivers and One External Driver Transient-Phase Overlap Mode Dynamic Phase Selection S 2-/1-Phase Quick-PWM GFX Regulator One Internal and One External Driver S Active Overshoot Suppression S 8-Bit VR12/IMVP-7 DAC S VOUT Accuracy Over Line, Load, and

Temperature S Active Voltage Positioning with Programmable

Gain S Accurate Lossless Current Balance S Accurate Droop and Current Limit S Remote Output and Ground Sense S Power-Good Window Comparators POKA and

POKB S 4.5V to 24V Battery-Input Voltage Range S Programmable 200kHz to 600kHz Switching

Frequency S External Thermal-Fault Detection Output

VR_HOT# S Overvoltage MAX17411/MAX17511/MAX17511C/

MAX17511N , Undervoltage, and Thermal-Fault Protection S Slew-Rate Controlled Soft-Start S Passive Soft-Shutdown 20I Discharge Switches S Integrated Boost Switches S Low-Profile, 48-Lead/40-Lead TQFN Packages

Quick PWM is a trademark of Maxim Integrated Products, Inc.
Ordering Information

PART MAX17411GTM+ MAX17511GTL+

TEMP RANGE -40NC to +105NC -40NC to +105NC

PIN-PACKAGE 48 TQFN-EP* 40 TQFN-EP*
Ordering Information continued on last page.
+Denotes a lead Pb -free/RoHS-compliant package. *EP = Exposed pad.

FEATURE 3-/2-/1-Phase + 2-/1-Phase
3-/2-/1-Phase + 1-Phase

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For information on other Maxim products, visit Maxim’s website at

Dual-Output, 3-/2-/1-Phase + 2-/1-Phase Quick-PWM Controllers for VR12/IMVP7

ABSOLUTE MAXIMUM RATINGS

VCC, VDDA, VDDB to GND AGND .........................-0.3V to +6V VDIO, CLK, ALERT# to GND AGND .....................-0.3V to +6V CSPAAVE, CSPBAVE, CSP_,

CSN_ to GND to +6V FBA, FBB to GND AGND ....................... -0.3V to VCC + 0.3V SR, IMAX_ to GND AGND -0.3V to VCC + 0.3V POKA, POKB, EN to GND AGND .........................-0.3V to +6V VR_HOT# to GND to +6V THERMA, THERMB to GND AGND ........ -0.3V to VCC + 0.3V GNDSA, GNDSB to GND AGND ........................-0.3V to +0.3V TON to +26V DRVPWMA to GND AGND ................... -0.3V to VDDA + 0.3V DRVPWMB to GND AGND ................... -0.3V to VDDB + 0.3V DLA_ to GND PGND ............................ -0.3V to VDDA + 0.3V DLB to GND PGND .............................. -0.3V to VDDB + 0.3V

BSTA_ to +26V BSTB to +26V LXA_ to +0.3V LXB to +0.3V LX_ to GND to +26V DHA_ to VBSTA_ + 0.3V DHB to -0.3V to VBSTB + 0.3V Continuous Power Dissipation TA = +70NC
40-Pin TQFN derate 35.7mW/NC above +70NC ....2857.1mW 48-Pin TQFN derate 37mW/NC above +70NC ..........2963mW Operating Temperature Range......................... -40NC to +105NC Junction Storage Temperature Range............................ -65NC to +165NC Lead Temperature soldering, Soldering Temperature

PACKAGE THERMAL CHARACTERISTICS Note 1
40 TQFN

Junction-to-Ambient Thermal Resistance qJA ...........28°C/W Junction-to-Case Thermal Resistance qJC ...............1.6°C/W
48 TQFN

Junction-to-Ambient Thermal Resistance qJA ...........27°C/W Junction-to-Case Thermal Resistance qJC ...............1.3°C/W

Note 1 Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a fourlayer board. For detailed information on package thermal considerations, refer to

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

Circuits of Figures 1 and VIN = 10V, VCC = VDDA = VDDB = 5V, EN = VCC, VGNDS_ = 0V, VFB_ = VCSP_AVE = VCSP_ = VCSN_ = 1V [SerialVID = FPWM MODE] TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25NC. All devices 100% tested at TA = +25NC. Limits over temperature guaranteed by design.

PARAMETER

CONDITIONS

MIN TYP MAX UNITS

PWM CONTROLLER

Input Voltage Range

VCC, VDDA, VDDB

DC Output Voltage Accuracy

Measured at FB_ with

DAC codes from 1.000V to 1.520V
respect to GNDS_ includes load regulation

DAC codes from 0.800V to 0.995V
error Note 2

DAC codes from 0.250V to 0.795V
+5 mV

Line Regulation Error VSETTLED Bit Accuracy

VCC = 4.5V to 5.5V, VIN = 4.5V to 24V Upward transitions Downward transitions
-15 -10

GNDS_ Input Range
-200
+200 mV
Ordering Information continued

PART

TEMP RANGE

PIN-PACKAGE

MAX17511CGTL+
-40NC to +105NC
40 TQFN-EP*

MAX17511NGTL+ MAX17511TGTL+
-40NC to +105NC -40NC to +105NC
40 TQFN-EP* 40 TQFN-EP*
+Denotes a lead Pb -free/RoHS-compliant package. *EP = Exposed pad.

FEATURE 3-/2-/1-Phase + 1-Phase, 0V VBOOT for Reg A,
0.9V VBOOT for Reg B 3-/2-/1-Phase + 1-Phase, 1.1V VBOOT
3-/2-/1-Phase + 1-Phase, OVP Disabled

PROCESS BiCMOS

Chip Information

Package Information

For the latest package outline information and land patterns footprints , go to Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status.

PACKAGE TYPE

LAND

CODE

PATTERN NO.
40 TQFN-EP 48 TQFN-EP

T4055+2 T4866+1
21-0140 21-0141
90-0002 90-0057

Dual-Output, 3-/2-/1-Phase + 2-/1-Phase Quick-PWM Controllers for VR12/IMVP7
1/11 Initial release

Added the MAX17511C to the data sheet updated the Absolute Maximum Ratings 7/11 to include Package Thermal Characteristics changed the conditions in the Electrical

Characteristics for the Valley Current-Limit Threshold Voltage sections.

PAGES CHANGED
1, 2, 4, 5, 6, 7, 10, 12, 13, 14, 19, 20, 21, 25,27, 28, 32, 33, 35, 38, 40, 49, 52, 53, 58,
62, 64

Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.

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Datasheet ID: MAX17411GTM+T 647261