19-4649; Rev 0; 5/09
MAX17480 Evaluation Kit
General Description
The MAX17480 evaluation kit (EV kit) demonstrates the
high-power, triple-output notebook CPU application cir-
cuit for the AMD
®
mobile serial VID interface (SVI) CPU
core supplies. This DC-DC converter steps down high-
voltage batteries and/or AC adapters, generating preci-
sion, low-voltage CPU cores. The MAX17480 EV kit
meets the AMD mobile SVI CPU’s transient voltage
specification, power-good signaling, voltage-regulator
thermal monitoring (VRHOT), and power-good output
(PWRGD). The MAX17480 EV kit consists of one dual-
phase high-current switched-mode power supply
(SMPS) for the CPU core (VCORE0) and one 4A internal
switch SMPS for the northbridge (NB) core. The two
CPU core SMPSs run 180° out-of-phase for true inter-
leaved operation, minimizing input capacitance.
Output voltages are dynamically changed through a
2-wire serial interface, allowing the switching regulators
to be individually programmed to different voltages. A
programmable slew-rate controller enables controlled
transitions between VID codes. SVI also allows each
regulator to be individually set into a low-power pulse-
skipping state.
Soft-start limits the inrush current, and passive shut-
down discharges the output voltage back down to zero
without any negative ring. The MAX17480 EV kit
includes active voltage positioning with adjustable gain,
reducing power dissipation and bulk output capaci-
tance requirements. The MAX17480 includes latched
output undervoltage fault protection, overvoltage fault
protection for the CPU cores, and thermal-overload pro-
tection. It also includes a voltage-regulator power-good
(PWRGD) output.
This fully assembled and tested PCB provides a digital-
ly adjustable 0 to 1.550V output-voltage range (7-bit on-
board DAC) from a 7V to 24V battery input range. Each
phase of the core current SMPS operates at 300kHz
switching frequency and delivers up to 18A output cur-
rent for a total of 36A. The 4A internal switch SMPS
operates at 600kHz switching frequency and delivers
up to 4A. The EV kit has superior line- and load-tran-
sient response. 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 MAX17480.
Features
♦
Dual/Triple-Output, Fixed-Frequency Controller
♦
AMD Mobile SVI-Compliant Serial Interface
♦
0 to 1.550V Output-Voltage Range (7-Bit On-Board
DAC)
♦
Core SMPS
Split or Combinable Outputs Detected at
Power-Up
True Out-of-Phase Operation Reduces Input
Capacitance
Transient Phase Repeat Reduces Output
Capacitance
Dynamic Phase Selection Optimizes Active/
Sleep Efficiency
Programmable AC and DC Droop
7V to 24V Input-Voltage Range
36A Load-Current Capability (18A Each Phase)
Accurate Current Balance and Current Limit
300kHz Switching Frequency (Per Phase)
Output Overvoltage Fault Protection
♦
NB SMPS
4A Load-Current Capability for Northbridge
Core
600kHz Switching Frequency for Northbridge
♦
Power-Good (PWRGD) and Thermal-Fault
(VRHOT) Output Indicators
♦
System Power-OK (PGD_IN) Input
♦
Undervoltage Fault Protection
♦
40-Pin Thin QFN Package (5mm x 5mm)
♦
Lead(Pb)-Free and RoHS Compliant
♦
Fully Assembled and Tested
Evaluates: MAX17480
Ordering Information
PART
MAX17480EVKIT+
TYPE
EV Kit
+Denotes
lead(Pb)-free and RoHS compliant.
AMD is a registered trademark of Advanced Micro Devices, Inc.
Windows, Windows XP, and Windows Vista are registered trademarks of Microsoft Corp.
________________________________________________________________
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.
MAX17480 Evaluation Kit
Evaluates: MAX17480
Component List
DESIGNATION
CORE0SENSE_H,
CORE0SENSE_L,
CORE1SENSE_H
CORE1SENSE_L,
NBSENSE_H,
PGD_IN, PWRGD,
SHDN, VRHOT
QTY
DESCRIPTION
DESIGNATION
C21, C22, C69,
C70, C77
9
Test points
QTY
DESCRIPTION
1000pF ±10%, 50V X7R ceramic
capacitors (0603)
TDK C1608X7R1H102K
Murata GRM188R71H102K
22µF ± 20%, 6.3V X5R ceramic
capacitors (0805)
TDK C2012X5R0J226MT
Taiyo Yuden JMK212BJ226MG
3300pF ±10%, 50V X7R ceramic
capacitor (0603)
TDK C1608X7R1H332K
Taiyo Yuden UMK107B332MZ
1µF ±10%, 16V X7R ceramic
capacitors (0603)
TDK C1608X7R1C105K
AVX 0603YD105MAT
22pF± 5%, 50V C0G ceramic
capacitors (0603)
TDK C1608C0G1H220J
10pF ±5%, 50V C0G ceramic
capacitors (0603)
TDK C1608C0G1H100J
2200pF ±10%, 50V X7R ceramic
capacitors (0603)
TDK C1608X7R1H222K
Murata GRM188R71H222K
Not installed, polymer capacitor
(D case)
NEC TOKIN PSGD0E227M6
Panasonic EEFSX0D271XE
SANYO 2TPE220M6
100µF, 6.3V low-ESR capacitor
(B case)
SANYO 6TPE100MAZB
NEC TOKIN PSLB0J107M(35)
330pF ±10%, 50V X7R ceramic
capacitors (0603)
TDK C1608X7R1H331K
Taiyo Yuden UMK107B331KZ
22µF ±10%, 10V X7R ceramic
capacitors (1210)
Murata GRM32ER71A226K
3A, 30V Schottky diodes
Nihon EC31QS03L
Central Semi CMSH3-40M
LEDs, green clear SMD (0805)
5
C26–C37
10µF ±20%, 25V X5R ceramic
capacitors (1210)
TDK C3225X7R1E106M
AVX 12103D106M
Taiyo Yuden TMK325BJ106MM
Not installed, polymer capacitors
(D case)
330µF, 2V, 6mΩ low-ESR polymer
capacitors (D case)
NEC TOKIN PSGD0E337M6
Panasonic EEFSX0D331XE
SANYO 2TPE330M6
0.1µF ±10%, 25V X7R ceramic
capacitors (0603)
TDK C1608X7R1E104K
Murata GRM188R71E104K
2.2µF ±20%, 10V X5R ceramic
capacitors (0603)
TDK C1608X5R1A225M
Murata GRM188R61A225M
AVX 0603ZD225MAT
0.22µF ±20%, 10V X7R ceramic
capacitors (0603)
Taiyo Yuden LMK107BJ224MA
TDK C1608X7R1C224M
AVX 06033D224KAT
4700pF ±10%, 50V X7R ceramic
capacitors (0603)
TDK C1608X7R1H472K
Murata GRM188R71H472K
Not installed, ceramic capacitors
(0603)
10µF ±20%, 6.3V X5R ceramic
capacitors (0805)
TDK C2012X5R0J106M
Taiyo Yuden AMK212BJ106MG
AVX 08056D106MAT
C71–C74
C49, C50
12
C1–C4
4
C40
1
C5, C7
0
2
C6, C8, C19
3
C54, C55
2
C9, C12,
C44–C48,
C58, C78
9
C56, C57
2
C63, C64, C75
3
C10, C11
2
C65
0
C13, C14, C24,
C25, C76
5
C66
1
C15, C17,
C20, C23
C16, C38, C39,
C41, C42, C43,
C53, C59–C62
4
C67, C68
0
2
4
C18, C51, C52
3
D1, D2
D3, D4
2
2
2
_______________________________________________________________________________________
MAX17480 Evaluation Kit
Component List (continued)
DESIGNATION
J1
J2
J4, J5
JU1, JU3–JU6
JU2
JU7, JU8
QTY
1
0
2
5
1
2
DESCRIPTION
USB series-B right-angle
PC-mount receptacle
Not installed, dual-row (2 x 5)
10-pin header
Scope probe jacks
3-pin headers
5-pin header
2-pin headers
0.45µH, 30A, 1.1mΩ power
inductors
TOKO FDUE1040D-R45M or
NEC TOKIN MPC1040LR45 or
Panasonic ETQP4LR45XFC
1.5µH, 5A, 21mΩ inductor
TOKO FDV0530-1R5M
NEC TOKIN MPLCH0525L1R5
n-channel MOSFETs
(PowerPAK SO 8)
Fairchild Semi FDS6298 (SO 8)
Siliconix (Vishay) SI7634DP
n-channel MOSFETs
(PowerPAK SO 8)
Fairchild Semi FDS8670 (SO 8)
Siliconix (Vishay) SI7336ADP
Not installed, n-channel
MOSFETs (D-PAK)
10kΩ ±1% NTC thermistors,
B = 3380 (0603)
Murata NCP18XH103F03RB
TDK NTCG163JH103F
100kΩ ±1% resistor (0603)
45.3kΩ ±1% resistor (0603)
Not installed, resistor—short PC
trace (0603)
13kΩ ±1% resistor (0603)
100kΩ ±5% NTC thermistor,
B = 4250 (0603)
Murata NCP18WF104J03RB
TDK NTCG163JF104J (0402) or
Panasonic ERT-J1VR104J
100kΩ ±5% resistors (0603)
143kΩ ±1% resistor (0603)
U3
1
U2
1
DESIGNATION
R11, R51,
R53–R56, R68
R12, R17,
R18, R19
R13, R31, R34,
R40, R41, R60,
R61, R73
R14, R20, R21
R15, R22–R27,
R57
R16, R36
R28, R35
R29, R32
R30, R33
R37, R69
R42, R43, R45,
R46
R44, R47, R52,
R58, R59
R48
R49
R50
R62–R66, R71,
R72, R74
R67
R70
SW1–SW4
TP1, TP2
U1
QTY
7
4
DESCRIPTION
1kΩ ±5% resistors (0603)
3.01kΩ ±1% resistors (0603)
Evaluates: MAX17480
0
3
8
2
0
2
2
2
4
5
1
1
1
0
1
1
4
0
1
Not installed, resistors (0603)
100Ω ±5% resistors (0603)
0Ω resistors (0603)
51Ω ±5% resistors (0603)
Not installed, 1W resistors (2512)
2.43kΩ ±1% resistors (0603)
4.02kΩ ±1% resistors (0603)
10Ω ±5% resistors (0603)
27Ω ±5% resistors (0603)
1.5kΩ ±5% resistors (0603)
2.2kΩ ±5% resistor (0603)
10kΩ ±5% resistor (0603)
470Ω ±5% resistor (0603)
Not installed, resistors—short
(PC trace) (0603)
2Ω ±5% resistor (0603)
5.1kΩ ±5% resistor (0603)
Pushbutton switches
Not installed, test points
AMD SVI mobile regulator
(40 TQFN)
Maxim MAX17480GTL+
Low-power LCD microcontroller
(68 QFN-EP*)
Maxim MAXQ2000-RAX+
93C46 type 3-wire EEPROM
(8 SO) 16-bit architecture
Atmel AT93C46EN-SH-B
UART-to-USB converter
(32 TQFP)
FTDI FT232BL
L1, L2
2
L3
1
N1, N2
2
N3–N6
4
N7, N8
0
R1, R2
2
R4
R5
R6
R7
1
1
0
1
R8
1
U4
1
R9, R38, R39
R10
3
1
*EP
= Exposed pad.
_______________________________________________________________________________________
3
MAX17480 Evaluation Kit
Evaluates: MAX17480
Component List (continued)
DESIGNATION
QTY
DESCRIPTION
3.3V, 120mA linear regulator
(5 SC70)
Maxim MAX8511EXK33+T
(Top Mark: AEI)
2.5V, 120mA linear regulator
(5 SC70)
Maxim MAX8511EXK25+T
(Top Mark: ADV)
DESIGNATION
Y1
Y2
—
—
QTY
1
1
8
1
DESCRIPTION
16MHz crystal
6MHz crystal
Shunts
PCB: MAX17480 EVALUATION KIT+
U5
1
U6
1
Component Suppliers
SUPPLIER
AVX Corp.
Central Semiconductor Corp.
Fairchild Semiconductor
Murata Electronics North America, Inc.
NEC TOKIN America, Inc.
Nihon Inter Electronics Corp.
Panasonic Corp.
SANYO Electric Co., Ltd.
Taiyo Yuden
TDK Corp.
TOKO America, Inc.
Vishay
PHONE
843-946-0238
631-435-1110
888-522-5372
770-436-1300
408-324-1790
847-843-7500
800-344-2112
619-661-6835
800-348-2496
847-803-6100
847-297-0070
402-563-6866
WEBSITE
www.avxcorp.com
www.centralsemi.com
www.fairchildsemi.com
www.murata-northamerica.com
www.nec-tokinamerica.com
www.niec.co.jp
www.panasonic.com
www.sanyodevice.com
www.t-yuden.com
www.component.tdk.com
www.tokoam.com
www.vishay.com
Note:
Indicate that you are using the MAX17480 when contacting these component suppliers.
MAX17480 EV Kit Files
FILE
INSTALL.EXE
MAX17480.EXE
FTD2XX.INF
UNINST.INI
USB_Driver_Help.PDF
Application program
USB device driver file
Uninstalls the EV kit software
USB driver installation help file
DESCRIPTION
Installs the EV kit files on your computer
4
_______________________________________________________________________________________
MAX17480 Evaluation Kit
Quick Start
Recommended Equipment
• MAX17480 EV kit (USB cable included)
• 7V to 24V, > 100W power supply, battery, or note-
book AC adapter
• DC bias power supply, 5V at 3A
• One load capable of sinking 40A
• One load capable of sinking 4A
• Digital multimeters (DMMs)
• 100MHz dual-trace oscilloscope
• User-supplied Windows 2000, Windows XP, or
Windows Vista PC with a spare USB port
Note:
In the following sections, software-related items
are identified by bolding. Text in bold refers to items
directly from the EV kit software. Text in
bold and under-
lined
refers to items from the Windows operating system.
4) Verify that there are shunts installed across jumpers
JU2, pins 1-2 (OPTION = VDD) and JU3, pins 1-2
(ILIM3 = VDD).
5) Verify that there is a shunt installed across jumpers
JU1, pins 1-2 (PGD_IN), JU4, pins 1-2 (SHDN),
JU5, pins 1-2 (SVD), JU6, pins 1-2 (SVC), allowing
U2 to control the MAX17480, and JU8, pins 1-2, IN3
connected to VBIAS.
6) Turn on the battery power before turning on the 5V
power supply.
7) Connect the USB cable from the PC to the EV kit
board. A
Building Driver Database
window pops up
in addition to a
New Hardware Found
message
when installing the USB driver for the first time. If you
do not see a window that is similar to the one
described above after 30 seconds, remove the USB
cable from the board and reconnect it. Administrator
privileges are required to install the USB device dri-
ver on Windows 2000, Windows XP, and Windows
Vista. Refer to the USB_Driver_Help.PDF document
included with the software if you have any problems
during this step.
8) Follow the directions of the
Add New Hardware
Wizard
to install the USB device driver. Choose the
Search for the best driver for your device
option.
Specify the location of the device driver to be
C:\Program Files\MAX17480
(default installation
directory) using the
Browse
button.
9) Start the EV kit software by opening its icon in the
Start | Programs
menu. The EV kit software main
window should appear, as shown in Figure 1.
10) Check the
Core 0, Combined Mode,
and
North
Bridge
checkboxes. Move any slider to adjust the
voltage to 1.2000V and press the
Send Data
button.
11) Observe the 1.2000V output voltage on the SMPS
outputs (VCORE0 and VOUT_NB) with the DMM
and/or oscilloscope. Look at the LX switching nodes
and MOSFET gate-drive signals while varying the
load current.
Evaluates: MAX17480
Procedure
The MAX17480 EV kit is fully assembled and tested.
Follow the steps below to verify board operation.
Caution: Do not turn on the power supply until all
connections are completed.
1) Visit
www.maxim-ic.com/evkitsoftware
to down-
load the latest version of the EV kit software,
17480xx.ZIP. Save the EV kit software to a tempo-
rary folder and uncompress the ZIP file.
2) Install the EV kit software on your computer by run-
ning the INSTALL.EXE program inside the tempo-
rary folder.
The program files are copied and icons are created
in the Windows
Start | Programs
menu.
3) Ensure that the circuit is connected correctly to the
supplies and dummy loads prior to applying any
power.
_______________________________________________________________________________________
5
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