MAX17411 Datasheet PDF - Maxim Integrated
| Part Number | MAX17411 | |
| Description | 3-/2-/1-Phase + 2-/1-Phase Quick-PWM Controllers | |
| Manufacturers | Maxim Integrated | |
| Logo |  |
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19-5742; Rev 1; 7/11
EVAALVUAAILTAIOBNLEKIT
Dual-Output, 3-/2-/1-Phase + 2-/1-Phase
Quick-PWM Controllers for VR12/IMVP7
General Description
The MAX17411/MAX17511/MAX17511C/MAX17511N/
MAX17511T are dual-output, step-down, constant on-time
Quick-PWMK controllers for VR12/IMVP-7 CPU core sup-
plies. The controllers consist of two high-current switching
power supplies for CPU and GFX cores. The CPU regulator
(regulator A) is a three-phase constant on-time architecture.
The GFX regulator (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 regula-
tor 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 frequen-
cies are programmable from 200kHz to 600kHz per
phase. Output overvoltage protection (OVP, MAX17411/
MAX17511/MAX17511C/MAX17511N), undervoltage pro-
tection (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 over-
lap and active overshoot suppression, which speed up
the response time and reduce the total output capaci-
tance. The CPU and GFX outputs are controlled inde-
pendently by writing the appropriate data into a function-
mapped 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 individu-
ally 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.
Applications
VR12/IMVP-7 CPU Core Power Supplies
Notebooks / Desktops/Servers
Features
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 ±0.5% 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
________________________________________________________________ Maxim Integrated Products 1
For information on other Maxim products, visit Maxim’s website at www.maxim-ic.com.
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Dual-Output, 3-/2-/1-Phase + 2-/1-Phase
Quick-PWM Controllers for VR12/IMVP7
ELECTRICAL CHARACTERISTICS (continued)
(Circuits of Figures 1 and 2. VIN = 10V, VCC = VDDA = VDDB = 5V, EN = VCC, VGNDS_ = 0V, VFB_ = VCSP_AVE = VCSP_ = VCSN_
= 1V; [SerialVID = 1.00, 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
THERMAL PROTECTION
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
VR_HOT# Trip Threshold
Measured at THERM_ with respect to VCC falling
edge; specify as % error for all TEMP MAX DAC
code settings, typical hysteresis = 100mV
49.5
50.5
%
Thermal Zone Registers Trip
Points
Thermal zone comparator trip points, measured
with respect to VCC; voltage threshold
corresponding to TMAX O (1 - N%),
N = 0, 3, 6, 9, 12, 15, 18, 25
THERM_ Input Leakage
ITHRM VTHERM_ = 2.5V, TA = +25NC
VR_HOT# Leakage Current
High-Z state (THERM_ > 0.505 x VCC), VR_HOT#
forced to 5V, TA = +25NC
Internal Thermal Fault
Shutdown Threshold
TTSHDN Typical hysteresis = 15NC
VALLEY CURRENT LIMIT AND DROOP
Valley Current-Limit
Threshold Voltage (Positive)
VILIMA
VCSP_ - VCSN_,
VSR = 0V,
VSR = 1.5V,
or one-phase
operation
RSENSE = 0.65mI, IMAXA = 39A
RSENSE = 0.65mI, IMAXA = 36A
RSENSE = 0.65mI, IMAXA = 30A
RSENSE = 0.65mI, IMAXA = 26A
RSENSE = 0.75mI, IMAXA = 39A
RSENSE = 0.75mI, IMAXA = 36A
RSENSE = 0.75mI, IMAXA = 30A
RSENSE = 0.75mI, IMAXA = 26A
RSENSE = 0.85mI, IMAXA = 39A
RSENSE = 0.85mI, IMAXA = 36A
RSENSE = 0.85mI, IMAXA = 30A
RSENSE = 0.85mI, IMAXA = 26A
RSENSE = 0.95mI, IMAXA = 39A
RSENSE = 0.95mI, IMAXA = 36A
RSENSE = 0.95mI, IMAXA = 30A
RSENSE = 0.95mI, IMAXA = 26A
49 +
24 O
N/31
-100
22.5
21.5
17.0
15.0
27.0
25.0
20.0
17.0
30.0
28.0
22.5
20.0
33.5
31.0
25.0
21.5
50 +
24 O
N/31
160
25.5
24.5
20.0
18.0
30.0
28.0
23.0
20.0
33.0
31.0
25.5
23.0
36.5
34.0
28.0
24.5
51 +
24 O
N/31
+100
1
28.5
27.5
23.0
21.0
33.0
31.0
26.0
23.0
36.0
34.0
28.5
26.0
39.5
37.0
31.0
27.5
%
nA
FA
NC
mV
_______________________________________________________________________________________ 5
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| Information | Total 30 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ MAX17411.PDF Datasheet ] | |
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