1
UG-1329 Rev D
DEMO MANUAL
DC2268A-H
DESCRIPTION
Demonstration circuit 2268A-H is a high efficiency, high
density, dual 25A, switch mode step-down power sup-
ply on a compact 1.5-inch × 1.2-inch PCB. It features
the LTM
®
4650-1 µModule
®
regulator. The input voltage
is from 4.5V to 15V. The output voltage is programmable
from 0.6V to 1.8V. DC2268A-H can deliver up to 25A
maximum in each channel. As explained in the data sheet,
output current derating is necessary for certain V
IN
, V
OUT
,
and thermal conditions. The board operates in continu-
ous conduction mode in heavy load conditions. For high
efficiency at low load currents, the resistor jumper (R1/
R2) selects pulse-skipping mode for noise sensitive appli-
cations or Burst Mode
®
operation in less noise sensitive
applications. Two outputs can be connected in parallel
for a single 50A output solution with optional jumper
resistors. The board allows the user to program how its
output ramps up and down through the TRACK/SS pin.
Remote output voltage sensing is available for improved
output voltage regulation at the load point. An optional
input inductor L1 reduces the EMI noise for noise sensi-
tive applications. DC2268A can be easily inserted to an
edge connector for testing and debugging. These fea-
tures and the availability of the LTM4650-1 in a compact
16mm×16mm × 5.01mm BGA package make it ideal
for use in many high density point-of-load regulation
applications. The LTM4650-1 data sheet must be read
in conjunction with this demo manual for working on or
modifying the DC2268A-H.
Design files for this circuit board are available at
http://www.analog.com/DC2268A-H
LTM4650-1
Dual 25A or Single 50A
µModule Regulator
BOARD PHOTO
Figure 1. LTM4650-1/DC2268A-H Demo Board
All registered trademarks and trademarks are the property of their respective owners.
2
UG-1329 Rev D
DEMO MANUAL
DC2268A-H
QUICK START PROCEDURE
PERFORMANCE SUMMARY
Specifications are at TA = 25°C
PARAMETER CONDITIONS/NOTES VALUE
Input Voltage Range 4.5V ~ 15V
Output Voltage VOUT1 VIN = 4.5V ~15V, IOUT1 = 0A ~25A 1V ± 1.5%
Output Voltage VOUT2 VIN = 4.5V ~15V, IOUT2 = 0A ~25A 1.5V ± 1.5%
Per Channel Maximum Continuous Output Current Derating is necessary for certain VIN, VOUT and thermal conditions 25A (per channel)
Default Operating Frequency 500kHz
External Clock Sync. Frequency Range 400kHz to 780kHz
Efficiency of Channel 1 VIN = 12V, VOUT1 = 1.0V, IOUT1 = 25A, fSW = 500kHz 86.3% (see Figure 3)
Efficiency of Channel 2 VIN = 12V, VOUT2 = 1.5V, IOUT2 = 25A, fSW = 500kHz 89.0% (see Figure 3)
Load Transient of Channel 1 VIN = 12V, VOUT1 = 1V, ISTEP = 12.5A ~ 18.75A VOPP = 77mV (see Figure 4)
Load Transient of Channel 2 VIN = 12V, VOUT2 = 1.5V, ISTEP = 12.5A ~ 18.75A VOPP = 84mV (see Figure 5)
Demonstration circuit DC2268A-H is easy to set up to
evaluate the performance of the LTM4650-1. It can be
easily inserted to an edge connector (SAMTEC MEC2-
20-01-L-DV-TR) for testing and debugging. Please refer
to Figure 2 for proper measurement setup and follow the
procedure below:
1. Pull-up the RUN1 (J1 pin 22) and RUN2 (J1 pin 24)
between 1.4V – 5V or leave them floating.
2. With power off, connect the input power supply, load
and meters as shown in Figure 2. Preset the load to 0A
and VIN supply to 12V.
3. Turn-on the power supply at the input. The output volt-
age in channel 1 should be 1.0V ± 1.5% (0.985V ~
1.015V) and the output voltage in channel 2 should be
1.5V ± 1.5% (1.478V ~ 1.523V).
4. Once the proper output voltage is established, adjust
the load within the operating range and observe the
output voltage regulation, output voltage ripple, effi-
ciency and other parameters. Output ripple should be
measured at CO3 and CO4.
5. (Optional) LTM4650-1 can be synchronized to an exter-
nal clock signal. Remove R2 and apply a clock signal
(0V~5V, square wave) to MODE-PLLIN pin.
6. (Optional) LTM4650-1 can be configured for a 2-phase
single output at up to 20A on DC2268A-H. Install 0Ω
resistors on R26, R27, R28, R29 and R32, and remove
R14, R18 and R30. Output voltage is set by R7 based
on equation VOUT = 0.6V (1 + 60.4k/R7).
NOTE: Due to very small PCB size of the DC2268A
board, the LTM4650-1 module can be quite hot at
heavy load. Cooling air is required. See Figures 6 and 8.
Table 1. DC2268A Demo Circuit
DEMO BOARD NUMBER µModule REGULATOR ON THE BOARD OUTPUT CURRENT
DC2268A-A LTM4620 13A,13A
DC2268A-B LTM4620A 13A,13A
DC2268A-C LTM4628 8A, 8A
DC2268A-D LTM4630 18A,18A
DC2268A-E LTM4630-1 18A,18A
DC2268A-F LTM4630A 18A, 18A
DC2268A-G LTM4631 10A, 10A
DC2268A-H LTM4650-1 25A, 25A
DC2268A-I LTM4650A-1 25A, 25A
3
UG-1329 Rev D
DEMO MANUAL
DC2268A-H
QUICK START PROCEDURE
Figure 2. Test Setup of DC2268A-H
Figure 3. Measured Efficiency at VIN = 12V, fSW=500kHz, (the Other Channel Is Off
when Measuring One Channel's Efficiency)
LOAD CURRENT (A)
EFFICIENCY (%)
2268ah F03
60
70
80
90
100
0
25
2015105
VO = 1V
VO = 1.5V
4
UG-1329 Rev D
DEMO MANUAL
DC2268A-H
QUICK START PROCEDURE
Figure 4. Measured Channel 1, 12.5A to 18.75A Load Transient (VIN = 12V, VOUT1 = 1.0V)
Figure 5. Measured Channel 2 12.5A to 18.75A Load Transient (VIN = 12V, VOUT2 = 1.5V)
1V
OUT
20MHz BW
50mV/DIV
12.5A to 18.75A
LOAD STEP
1.5V
OUT
20MHz BW
50mV/DIV
12.5A to 18.75A
LOAD STEP
5
UG-1329 Rev D
DEMO MANUAL
DC2268A-H
QUICK START PROCEDURE
Figure 6. Thermal Performance at VIN = 12V, VOUT1 = 1.0V/12A,
VOUT2 = 1.5V/12A, fSW = 500kHz, TA = 23°C, No Forced Airflow
Figure 7. Thermal Performance at VIN = 12V, VOUT1 = 1.0V/21A,
VOUT2 = 1.5V/21A, fSW = 500kHz, TA = 23°C, 400LFM Airflow
Figure 8. Thermal Performance at VIN = 12V, VOUT1 = 1.0V/25A,
VOUT2 = 1.5V/25A, fSW = 500kHz, TA = 23°C, 400LFM Airflow
6
UG-1329 Rev D
DEMO MANUAL
DC2268A-H
PARTS LIST
ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER
Required Circuit Components
1 6 CIN1, CIN2, CIN3, CIN4, CIN5, CIN6 CAP, 1210 22µF 10% 25V X5R AVX 12103D226KAT2A
2 2 CO1, CO5 CAP, 7343 470µF 20% 6.3V POSCAP PANASONIC 6TPF470MAH
3 4 CO2, CO3, CO4, CO6 CAP, 1210 100µF 10% 6.3V X5R AVX 12106D107KAT2A
4 1 C6 CAP, 0603 4.7µF 20% 6.3V X5R AVX 06036D475MAT2A
5 2 C8, C14 CAP, 0603 0.1µF 10% 25V X7R AVX 06033C104KAT2A
6 2 C5, C12 CAP, 0603 10nF 5% 16V C0G AVX 0603YC103JAT2A
7 2 C16, C17 CAP, 0603 10µF 20% 25V X5R TDK C1608X5R1E106M080AC
8 2 C18, C20 CAP, 0603 22µF 20% 6.3V X5R TDK C1608X5R0J226M080AC
9 1 L1 IND, 1.0µH COILCCRAFT XAL5030-102MEC
10 2 R2, R22 RES, 0603 0Ω JUMPER VISHAY CRCW06030000Z0EA
11 3 R3, R5, R14 RES, 0603 100Ω 5% 0.1W VISHAY CRCW0603100RJNEA
12 1 R4 RES, 0603 121k 1% 0.1W VISHAY CRCW0603121KFKEA
13 2 R6, R17 RES, 0603 10k 5% 0.1W VISHAY CRCW060310K0JNEA
14 1 R7 RES, 0603 13.3k 1% 0.1W VISHAY CRCW060313K3FKEA
15 1 R9 RES, 0603 0Ω VISHAY CRCW06030000Z0EA
16 1 R10 RES, 0603 6.65k 1% 0.1W VISHAY CRCW0606K65FKEA
17 1 R16 RES, 0603 11k 1% 0.1W VISHAY CRCW060011K0FKEA
18 1 R15 RES, 0603 121k 1% 0.1W VISHAY CRCW0603121KFKEA
19 1 R18 RES, 0603 40.2k 1% 0.1W VISHAY CRCW060340K2FKEA
20 3 R24, R25, R30 RES, 0603 10Ω 5% 0.1W VISHAY CRCW060310R0JNEA
21 1 U1 IC, VOLTAGE REGULATOR LGA LINEAR TECH. LTM4650EY-1B#PBF
Additional Demo Board Circuit Components
1 0 C1, C2, C3, C4, C7, C9, C10, C11, C13, C15 CAP, 0603 OPTION OPTION
2 0 R1, R8, R11, R12, R13, R19, R20, R21,
R23, R26, R27, R28, R29
RES, 0603 OPTION OPTION
3 0 R31, R32 RES, 2512 OPTION OPTION
Hardware
1 1 J1 CONN., CARD EDGE 1.6mm SAMTEC MEC2-20-01-L-DV-TR
7
UG-1329 Rev D
DEMO MANUAL
DC2268A-H
Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog
Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications
subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
SCHEMATIC DIAGRAM
5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
OPTIONAL JUMPER FOR
1 OUTPUT CONFIGURATION
*
*
MODULE
-A LTM4620
-B LTM4620A
-C LTM4628
-D LTM4630
-E LTM4630-1
-F LTM4630A
U1 [1]
-G LTM4631
-H LTM4650-1
- I LTM4650A-1
VOUT1 VOUT2
3.3V/18A 2.5V/18A
R7 R18
13.3K 19.1K
R15
143K
R10
10K
C12
3300p
C7
68p
1.0V/10A 1.5V/10A 90.9K 40.2K 169K
R16C5
10K 3300p
C15
68p
7.87K 1000p 1000p14K OPT OPT
90.9K 40.2K 121K
1.0V/18A 1.5V/18A 7.87K 14K1000p 1000p OPT OPT
3.3V/13A 5V/13A 13.3K 8.25K 191K OPT OPT OPT OPT 47p 33p
3.3V/25A 1.5V/25A 13.3K 40.2K 143K 5K 2200p 5K 2200p OPT OPT
1.0V/8A 1.5V/8A 90.9K 40.2K 121K 7.87K 1000p 14K 1000p OPT OPT
1.0V/25A 1.5V/25A 90.9K 40.2K 121K OPT OPT
6.65K 10n 11K 10n
PGOOD1
RUN1
VOS1+
PGOOD2
COMP1
TRACK1
VFB1
VFB1
VFB2
COMP2
RUN2
VFB2
VFB1
VOS1-_R
VOS1+_R
VOS2+_R
VOUT1
VOUT2 VOUT2
VOUT1
RUN2
RUN1
VOS1-_R
VOS1+_R
VOS2+_R
VOS2+
TRACK2
VOS1-
VOS1+
VIN2
INTVCC
INTVCC
VOUT1
VOS1+
VOS1-
INTVCC
VOUT2
EXTVCC
VIN1
VIN2
VOS2+
INTVCC VIN2
INTVCC
VIN1 VIN1
VOUT1 VOUT2
VOUT1
VOUT2
RUN1 RUN2
TRACK1 TRACK2
VFB1 VFB2
COMP1 COMP2
SIZE
DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY Fax: (408)434-0507
Milpitas, CA 95035
Phone: (408)432-1900
1630 McCarthy Blvd.
LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. SCALE = NONE
www.linear.com
3
DEMO CIRCUIT 2268A
Tuesday, June 27, 2017
11
HIGH EFFICIENCY, STEP-DOWN, MODULE
N/A
LTM4620/LTM4620A/LTM4628/
` \
Simon. T
REGULATOR
C:\PROJECTS\LTM4650-1\DC2268A-H\DC2268A-4_20170626.DSN LTM4630/LTM4630-1/LTM4631
SIZE
DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY Fax: (408)434-0507
Milpitas, CA 95035
Phone: (408)432-1900
1630 McCarthy Blvd.
LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. SCALE = NONE
www.linear.com
3
DEMO CIRCUIT 2268A
Tuesday, June 27, 2017
11
HIGH EFFICIENCY, STEP-DOWN, MODULE
N/A
LTM4620/LTM4620A/LTM4628/
` \
Simon. T
REGULATOR
C:\PROJECTS\LTM4650-1\DC2268A-H\DC2268A-4_20170626.DSN LTM4630/LTM4630-1/LTM4631
SIZE
DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY Fax: (408)434-0507
Milpitas, CA 95035
Phone: (408)432-1900
1630 McCarthy Blvd.
LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. SCALE = NONE
www.linear.com
3
DEMO CIRCUIT 2268A
Tuesday, June 27, 2017
11
HIGH EFFICIENCY, STEP-DOWN, MODULE
N/A
LTM4620/LTM4620A/LTM4628/
` \
Simon. T
REGULATOR
C:\PROJECTS\LTM4650-1\DC2268A-H\DC2268A-4_20170626.DSN LTM4630/LTM4630-1/LTM4631
R31 OPT
+
CO1
470uF
6.3V
7343
CIN2
22uF
25V
1210
R11
OPT
R1
OPT
CIN1
22uF
25V
1210
C1
OPT
C7*
C9
OPT
CIN6
22uF
25V
1210
R32
OPT
P2
R23
OPT
C5*
CO6
100uF
6.3V
1210
R15 *
1%
R12
OPT
R21
OPT
R24 10
U1 [1]
VOUT1
A1
VOUT1
A2
VOUT1
A3
VOUT1
A4
VOUT1
A5
VOUT1
B1
VOUT1
B2
VOUT1
B3
VOUT1
B4
VOUT1
B5
VOUT1
C1
VOUT1
C2
VOUT1
C3
VOUT1
C4
VFB1
D5
SW1
G2
PGOOD1
G9
COMP1
E6
RUN1
F5
TRACK1
E5
VOUTS1
C5
VOUT2
A8
VOUT2
A9
VOUT2
A10
VOUT2
A11
VOUT2
A12
VOUT2
B8
VOUT2
B9
VOUT2
B10
VOUT2
B11
VOUT2
B12
VOUT2
C9
VOUT2
C10
VOUT2
C11
VOUT2
C12
VFB2
D7
SW2
G11
PGOOD2
G8
COMP2
E7
RUN2
F9
TRACK2
D8
VOUTS2
C8
VIN
M2
VIN
M3
VIN
M4
VIN
M5
VIN
M6
VIN
M7
VIN
M8
VIN
M9
VIN
M10
VIN
M11
VIN
L2
VIN
L3
VIN
L4
VIN
L5
VIN
L6
VIN
L7
VIN
L8
VIN
L9
VIN
L10
VIN
L11
VIN
K2
VIN
K3
VIN
K4
VIN
K9
VIN
K10
VIN
K11
VIN
J2
VIN
J3
VIN
J4
VIN
J9
VIN
J10
VIN
J11
GND
A6
GND
A7
GND
B6
GND
B7
GND
D1
GND
D2
GND
D3
GND
D4
GND
D9
GND
D10
GND
D11
GND
D12
GND
E1
GND
E2
GND
E3
GND
E4
GND
E10
GND
E11
GND
E12
GND
F1
GND
F2
GND
F3
GND
F10
GND
F11
GND
F12
GND
G1
GND
G3
GND
G10
GND
G12
GND
H1
GND
H2
GND
H3
GND
H4
GND
H5
GND
H6
GND
H7
GND
H9
GND
H10
GND
H11
GND
H12
GND
M12
GND
M1
GND
L12
GND
J1
GND
J5
GND
J8
GND
J12
GND
K1
GND
K5
GND
K6
GND
K7
GND
K8
GND
K12
GND
L1
SGND
C7
SGND
D6
SGND
F6
SGND
F7
SGND
G6
SGND
G7
FSET
C6
PHASMD
G4
DIFFP
E8
DIFFN
E9
CLKOUT
G5
MODE-PLLIN
F4
TEMP
J6
INTVCC
H8
EXTVCC
J7
DIFFOUT
F8
CO2
100uF
6.3V
1210
R14
100
R10*
1%
R16 *
1%
C4
150pF
C11 OPT
CIN4
22uF
25V
1210
R22
0
R20
OPT
J1
VIN
1
VIN
2
VIN
3
VIN
4
GND
5
GND
6
GND
7
GND
8
GND
9
GND
10
GND
11
GND
12
GND
13
GND
14
N/A
15
N/A
16
GND
17
GND
18
VOS1+
19
GND
20
VOS1-
21
RUN1
22
VOS2+
23
RUN2
24
VOUT1
25
VOUT1
26
VOUT1
27
VOUT1
28
VOUT1
29
VOUT1
30
VOUT1
31
VOUT1
32
VOUT2
33
VOUT2
34
VOUT2
35
VOUT2
36
VOUT2
37
VOUT2
38
VOUT2
39
VOUT2
40
R3
100
P3
L1 1uH
C2
OPT
R8
OPT
R7*
1%
+
CO5
470uF
6.3V
R17
10K
R13
OPT
CIN3
22uF
25V
1210 R2
0
C16
10uF
25V
R6
10K
CO4
100uF
6.3V
1210
C18
22uF
C15*
P1
CIN5
22uF
25V
1210 CO3
100uF
6.3V
1210
C17
10uF
25V
C3
OPT
C8
0.1uF
R4
121K
1%
R26
OPT
R25 10
C10
OPT
R9
0
C20
22uF
R5
100
C13
150pF
C12*
C14
0.1uF
4.7uF
C6
6.3V
R28
OPT
R30 10
R29
OPT
R27
OPT
R18 *
1%
R19
OPT
8
UG-1329 Rev D
DEMO MANUAL
DC2268A-H
©
ANALOG DEVICES, INC. 2017-2018
UG16916-0-5/18(0)
www.analog.com
ESD Caution
ESD (electrostatic discharge) sensitive device. Charged devices and circuit boards can discharge without detection. Although this product features patented or proprietary protection
circuitry, damage may occur on devices subjected to high energy ESD. Therefore, proper ESD precautions should be taken to avoid performance degradation or loss of functionality.
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or reverse engineer chips on the Evaluation Board. Customer shall inform ADI of any occurred damages or any modifications or alterations it makes to the Evaluation Board, including but not limited
to soldering or any other activity that affects the material content of the Evaluation Board. Modifications to the Evaluation Board must comply with applicable law, including but not limited to the RoHS
Directive. TERMINATION. ADI may terminate this Agreement at any time upon giving written notice to Customer. Customer agrees to return to ADI the Evaluation Board at that time. LIMITATION OF
LIABILITY. THE EVALUATION BOARD PROVIDED HEREUNDER IS PROVIDED “AS IS” AND ADI MAKES NO WARRANTIES OR REPRESENTATIONS OF ANY KIND WITH RESPECT TO IT. ADI SPECIFICALLY
DISCLAIMS ANY REPRESENTATIONS, ENDORSEMENTS, GUARANTEES, OR WARRANTIES, EXPRESS OR IMPLIED, RELATED TO THE EVALUATION BOARD INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTY OF MERCHANTABILITY, TITLE, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS. IN NO EVENT WILL ADI AND ITS
LICENSORS BE LIABLE FOR ANY INCIDENTAL, SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES RESULTING FROM CUSTOMER’S POSSESSION OR USE OF THE EVALUATION BOARD, INCLUDING
BUT NOT LIMITED TO LOST PROFITS, DELAY COSTS, LABOR COSTS OR LOSS OF GOODWILL. ADI’S TOTAL LIABILITY FROM ANY AND ALL CAUSES SHALL BE LIMITED TO THE AMOUNT OF ONE
HUNDRED US DOLLARS ($100.00). EXPORT. Customer agrees that it will not directly or indirectly export the Evaluation Board to another country, and that it will comply with all applicable United States
federal laws and regulations relating to exports. GOVERNING LAW. This Agreement shall be governed by and construed in accordance with the substantive laws of the Commonwealth of Massachusetts
(excluding conflict of law rules). Any legal action regarding this Agreement will be heard in the state or federal courts having jurisdiction in Suffolk County, Massachusetts, and Customer hereby submits
to the personal jurisdiction and venue of such courts. The United Nations Convention on Contracts for the International Sale of Goods shall not apply to this Agreement and is expressly disclaimed.