© 2017 Intel Corporation. All rights reserved. Intel, the Intel logo, Altera, Enpirion, a nd the Enpirion logo are trademar ks of Intel Corporation in the US an d/or
other countries. Other marks and brands may be claimed as the property of others. Intel warrants performance of its FPGA and semiconductor products to
current specifications in accordance with Intel's standard warranty, but reserves the right to make changes to any products and services at any time without
notice. Intel assumes no responsibility or liability arising out of the application or use of any information, product, or service described herein except as
expressly agreed to in writing by Intel. Intel customers are advised to obtain the latest version of device specifications before relying on any published
information and before placing orders for products or services.
User Guide
Intel® Enpirion® Power Solutions
EM21xx
Evaluation Board User Guide
User Guide | Intel® Enpirion® Power Solutions
EM21xx Evaluation Board User Guide
2
Contents
1. Description ........................................................................................................................................................................ 3
2. Required Equipment ..................................................................................................................................................... 3
3. Evaluation Board Overview ........................................................................................................................................ 4
4. Instructions ....................................................................................................................................................................... 5
5. Evaluation Board Schematic ...................................................................................................................................... 7
6. Bill of Materials ................................................................................................................................................................ 9
7. Revision History ............................................................................................................................................................ 12
List of Figures
Figure 1: EM21xx Evaluation Board Overview (View From Top - EM2130H shown as an example) .. 4
Figure 2: “L” and “H” Jumper Table, Marked On The EM21xx Evaluation Board Silk Screen................ 6
Figure 3: Evaluation Board Schematic – Power ......................................................................................................... 7
Figure 4: Evaluation Board Schematic – AUX ............................................................................................................. 8
List of Tables
Table 1: Required Equipment ........................................................................................................................................... 3
Table 2: Bill of Materials...................................................................................................................................................... 9
User Guide | Intel® Enpirion® Power Solutions
EM21xx Evaluation Board User Guide
3
1. Description
The EM21xx are a series of PowerSoC synchronous buck converters from the Intel® Enpirion®
Power Solutions family. The EM22xx series feature an advanced digital controller, gate
drivers, synchronous MOSFET switches, and a high performance inductor. Only input and
output filter capacitors and a few small signal components are required for a complete
solution. A PMBus™ version 1.2 compliant interface provides setup, control, and telemetry.
Differential remote sensing and ±0.5% set-point accuracy provide precise regulation over
line, load and temperature variation. Very low ripple further reduces accuracy uncertainty to
provide best in class static regulation for today’s FPGAs, ASICs, processors, and DDR
memory devices.
2. Required Equipment
Table 1: Required Equipment
Item #
Equipment
Recommended
1 DC Power Supply 20V/30A, adjustable
2 Electronic Load 50…100A with dynamic load capabilities
3 Intel Enpirion PMBus
Communication Interface Dongle
4 Intel 25A Mini Slammer Load Fits the on-board LD1 socket
5 DMM 6 ½ digit
6 Oscilloscope 4 channels, 0.5 GHz BW
7 Cables >30A capability, eyelet terminal, 4 mm
diameter hole, 10 mm outer diameter
User Guide | Intel® Enpirion® Power Solutions
EM21xx Evaluation Board User Guide
4
3. Evaluation Board Overview
Figure 1: EM21xx Evaluation Board Overview (View From Top - EM2130H shown as an example)
ENABLE
ON/OFF
OUTPUT
OUTPUT
GROUND
INPUT
VOLTAGE
OUTPUT
DECOUPLING
OUTPUT
GROUND
PMBus
Communication
Interface Dongle
Connector
EM2130H
OUTPUT
MONITOR
OUTPUT
VOLTAGE
FERRITE
BEAD
OUTPUT
VOLTAGE
SELECTOR
User Guide | Intel® Enpirion® Power Solutions
EM21xx Evaluation Board User Guide
5
4. Instructions
1) Connect the power supply
Set the Power Supply to 12V/10A.
Connect the power supply to the board (make sure that the power supply is OFF)
with two patch cables, not longer than 12 inches (30 cm). Using longer wires is
possible, provided that additional bulk is added to the board (the C45 through-hole
capacitor footprint is available for this purpose) and the input voltage is monitored
at the board level. Please use INPUT GROUND and INPUT VOLTAGE eyeletterminated cables to connect the power.
Please observe the correct polarity.
CAUTION: Incorrect polarity of the power supply may cause permanent
board damage!
CAUTION: Power supply voltage above 20V may cause permanent board
damage!
2) Connect the load
Connect the load to the OUTPUT GROUND and OUTPUT voltage with patch cables,
no longer than 12 inches (30 cm).
Please observe the correct polarity.
3) Check jumper settings
The board will arrive with one jumper on the J6 (BUS – enabling control through
PMBUS), one jumper on J14 (INT – this enables the on-board 5V power supply) and
one jumper on J15 (AUX_PVIN – this biases the 5V on board DC-DC converter). If an
auxiliary 5V power supply is needed (connected between J16 (+) and J17 (-)), J14
should be placed across the “EXT” position while J15 can be removed.
Although “TRACK” and “SYNC” use 100 mils headers, they are NOT to be shorted by
jumpers.
4) Connect the PMBUS GUI interface dongle
The USB Dongle can be inserted only in the correct position, with pin one towards
GND. All pins must be properly inserted.
Prerequisite: the latest GUI software must be installed on a Windows PC.
User Guide | Intel® Enpirion® Power Solutions
EM21xx Evaluation Board User Guide
6
5) Set the output voltage
Using the chart from the silkscreen, please select the desired output voltage, using
ONLY ONE switch ON. This setting will be read by the module when the part is
powered on or by PMBus command; changing the resistor on the fly will not have any
effect.
6) Power-up the board
After all preparations above, the board should be ready to perform. If the GUI
interface dongle is not used, the jumper J6 should be moved to the “ON” position;
else the jumper J6 should be in the “BUS” position.
The voltage range (High/Low) is marked on the board, as shown in Figure 2:
Figure 2: “L” and “H” Jumper Table, Marked On The EM21xx Evaluation Board Silk Screen
For instruction on how to use the EM21xx GUI, please read “GUI User Guide.”
NOTE: To measure the Bode Plot of the DC-DC converter, R12 must be replaced with 50Ω resistor across which to inject
the signal, while TP18, TP20, TP8 and TP21 should be used to connect the probes of the phase analyzer.
User Guide | Intel® Enpirion® Power Solutions
EM21xx Evaluation Board User Guide
7
5. Evaluation Board Schematic
Figure 3: Evaluation Board Schematic – Power
V
V1
C29
10u
AGND
R7
DNI
+
C2
R5
10k
V
+
C18
DNI
R15
1k/0.1%
SALERT
C14
47U
PGND
C15
DNI
L7
28F0181-1SR-10
C20
47U
X2
MTHOLE
TP5
PGOOD
ADDR1
J6
1
2
3
5V
+
C8
DNI
R3
1k
+
C7
DNI
R21
10k
J22
1
2
3
CHF4
470nF/25V LICC
SYNC
TP18
CONTROL
TP21
C47
22u
C12
47U
1.2V
R1
1k
R29
15.80k
R31
10.5k
R33
6.81k
J2
1
2
VCCSEN
R48
DNI
V7
R8
DNI
C46
22u
X3
MTHOLE
C60
100nF
1.0V
R9
1k
ADDR0
R17
2k/0.1%
TP10
SDA
VIN_F
C59
100nF
0.7V
+
C45
DNI
CTRL
SYNC
+
C24
C43
DNI
C31
DNI
S2
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V4
C21
2.2uF/10V
SCL
C58
100nF
U1
EM21xx
AGND
70
NC68
68
VSENP
71
VSENN
72
VOUT
79
VOUT
3
VTRACK
77
ADDR1
7
VOUT
80
ADDR0
8
RTUNE
5
VOUT
2
VCCSEN
78
RVSET
4
SCL
15
SDA
14
PGND
32
VDD33
16
VCC
66
NC76
76
DGND
69
PWM
9
VOUT
81
VINSEN
6
VOUT
1
SMBALERT
13
CONTROL
12
PGOOD
11
SYNC
10
PGND
33
PGND
34
PGND
35
PGND
36
PGND
37
PGND
38
PGND
39
PGND
40
PGND
42
PGND
43
PGND
44
PGND
45
PGND
46
PGND
47
PGND
48
PGND
49
PGND
50
PGND
41
PGND
22
PGND
23
PGND
24
PGND
25
PGND
26
PGND
27
PGND
28
PGND
29
PGND
30
PGND
31
PGND
60
PGND
59
PGND
58
PGND
57
PGND
56
PGND
55
PGND
54
PGND
53
PGND
52
PGND
51
PVIN
61
PVIN
62
PVIN
63
PVIN
64
PVCC
65
NC67
67
NC75
75
NC74
74
NC73
73
PVIN
17
PVIN
18
PVIN
19
PVIN
20
PVIN
21
VOUT
100
VOUT
99
VOUT
98
VOUT
97
VOUT
96
VOUT
95
VOUT
94
VOUT
93
VOUT
92
VOUT
91
VOUT
90
VOUT
89
VOUT
88
VOUT
87
VOUT
86
VOUT
85
VOUT
84
VOUT
83
VOUT
82
PVIN_PAD
103
PGND_PAD
104
AGND_PAD
102
VOUT_PAD
101
R60
DNI
CHF2
470nF/25V LICC
Jumpe r: (PN: M50-1920005)
http://w ww .digi key.co m/pr oduct- detail/e n/har win -inc/M50- 1920005/952-1727-ND/2890863
Hea de r : (P N: GRPB0 31V WV N-RC )
http://w ww .digi key.co m/pr oduct- detail/e n/s ullins- conne ctor-s olutio ns/GRPB031VWVN-RC/S9014E-03-ND/1786439
Jumpe r 2: (PN: M50-2020005)
http://w ww .digi key.co m/pr oduct- detail/e n/har win -inc/M50- 2020005/952-1729-ND/2890860
V8
TP17
PGND
X1
MTHOLE
C57
100nF
VDD3V3
PG
R35
2.43k
J8
1
2
3
C56
100nF
RVSET
PWM
L8
28F0181-1SR-10
C55
100nF
VDD3V3
C5
100u
R12
0R
+
C22
C4
DNI
R6
DNI
C54
100nF
R19
0R
R13
11k/0.1%
CHF5
0.9V
R11
0R
SMA
SMA1
PWM
5V
TP3
V6
AGND
C13
47U
TP8
C53
100nF
CHF7
470nF/25V LICC
+
C17
DNI
0.8V
CHF3
YFF21PC1E104MT00 (100nF/25V)
3
4
2
1
TP16
R22
3.3k
C52
100nF
C30
DNI
J3
1
2
3
R24
2k/ 0.1%
PVIN
V_CLEAN
Q1
2N7002
1
2
3
RTUNE
RTUNE
C51
100nF
C11
DNI
TP2
GND
R20
392R
R28
23.2k
V_OUT
R30
13.0k
R32
8.66k
J13
1
2
+
C40
J4
1
2
3
C3
DNI
PVIN
VTRACK
TP4
VSENN
+
C19
DNI
R16
1k/0.1%
C32
DNI
TRACK
TP14
VIN
LD1
1
3
2
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
RTUNE
FB1
742792780
D1
A
1
K
2
VTRACK
V3
VDD3V3
RVSET
1.12V
VTRACK1
R23
DNI
TP1
TP9
V2
C26
22u
V5
RVSET
C9
100u
C49
100nF
VOUT
VSENP
0.95V
GND
+
C23
100uF/20V TCJE107M020x0045
R34
3.74k
C27
22u
TP20
C10
100u
+
C6
470uF/2.5V/3m Ohm
CTRL
R18
2k/0.1%
+
C16
DNI
X4
MTHOLE
C48
100nF
CHF6
0.85V
CHF1
470nF/25V LICC
C28
22u
J9
1
2
3
CHF8
470nF/25V LICC
V
C1
100U
User Guide | Intel® Enpirion® Power Solutions
EM21xx Evaluation Board User Guide
8
Figure 4: Evaluation Board Schematic – AUX
PVIN_5V
R44
0R
C50
DNI
L1
22uH
NR6028T220MMGJ
C33
100pF
R38
90.9k
C34 0. 1u
CTRL
C37
47u
C35
47u
GND
0
TP6
5V0_AUX
AVINO
R45
12.4k
R43
133k
EN5V
SCL
Tss =
1.41ms
0
TP19
5V
PGOOD
R42
3.32k
5V_EXT
PGOOD
0
R41
10k
5V Bias Supply
500mA
Ext_5V
R10
DNI
VDD3V3
R37
10k
BST5V
SDA
5V
C41
10u
5V
J17
SS5V
FB5V
TP7
C38
4.7nF
C39
470pF
C42
1u
R4
DNI
FSW5V
Fsw=700kHz
0
U2
ER3105QI
SS
1
SYNC
2
BOOT
3
PVIN
4
SW
5
PGND
6
FSW
12
COMP
11
FB
10
AVINO
9
POK
8
EN
7
EPAD
13
PMBUS
J21
1
2
3
4
5
6
7
8
9
10
5VSEL
J15
1
2
R40
100k
0
PVIN
J14
1
2
3
PM Bus Components
CMP5V
R2
DNI
0
SW5V
SALERT
GND
C36
47u
0
PVIN5V
0
POK5V
C44
10u
J16
User Guide | Intel® Enpirion® Power Solutions
EM21xx Evaluation Board User Guide
9
6. Bill of Materials
Table 2: Bill of Materials
Type
Description
Qty.
BOM Ref Des
Mfr. Name
Capacitor CAP CER 100UF 6.3V X5R
1206
4 C1,C5,C9,C10 Kemet
Capacitor CAP ALUM POLY 470UF 20%
2.5V
2 C2,C6 Panasonic
Capacitor CAP CER 47UF 6.3V X5R 1206 4 C12,C13,C14,C20 Murata
Capacitor CAP CER 2.2UF 16V 10% X6S
0402
1 C21 TDK
Capacitor CAP - POSCAP, 100UF, 20V,
ESR=55 mΩ
4 C22,C23,C24,C40 Panasonic
Capacitor CAP CER 22UF 25V 10% X5R
1206
5 C26,C27,C28,C46,C47 Murata
Capacitor CAP CER 10UF 25V 10% X5R
0805
3 C29,C41,C44 Murata
Capacitor CAP CER 100PF 50V 5% NP0
0402
1 C33 Taiyo Yuden
Capacitor CAP CER 0.1UF X7R 0402 10V
10%
1 C34 Murata
Capacitor CAP CER 47UF 6.3V X5R 0805 3 C35,C36,C37 Taiyo Yuden
Capacitor CAP CER 4.7NF X7R 0402 25V
10%
1 C38 Murata
Capacitor CAP CER 470PF 25V X7R 10%
0402
1 C39 Vishay
Capacitor CAP CER 1UF 25V 20% X5R
0402
1 C42 Taiyo Yuden
Capacitor CAP CER 0.47UF 25V 20% X7R
0612
7 CHF1,CHF2,CHF4,CHF5,
CHF6,CHF7,CHF8
Murata
Capacitor 22UF 6.3V 0805 FEED-
THROUGH (3 TERMINALS)
1 CHF3 TDK
LED LED GREEN CLEAR 0603 1 D1 LITE-ON INC
Inductor FERRITE BEAD 220 OHM 0402 1 FB1 Wurth
Electronik
Inductor INDUCTOR, 22UH, 1.3A, 1 L1 Taiyo Yuden
User Guide | Intel® Enpirion® Power Solutions
EM21xx Evaluation Board User Guide
10
Type
Description
Qty.
BOM Ref Des
Mfr. Name
Ferrite
Bead
Ferrite Bead, 115 ohm, 3318
[8545 Metric], 10 A, 1000
µohm
2 L7,L8 LAIRD
TECHNOLOGIES
Connector INTEL 25A SLAM LOAD
CONNECTOR
1 LD1 Samtec
MOSFET MOSFET N-CH 60V 300MA
SOT23
1 Q1 Fairchild
Resistor 1K 1% 0805 CHIP RESISTOR
1/8W
2 R1,R9 Panasonic
Resistor RES 1K OHM 1% 1/10W 0402 1 R3 Panasonic
Resistor RES 10K OHM 1/10W 1%
0402
4 R5,R21,R37,R41 Panasonic
Resistor RESISTOR ZERO OHM 1/10W
5% 0402
2 R11,R44 Panasonic
Resistor RES ZERO OHM 1/10W 5%
0603
2 R12,R19 Panasonic
Resistor RES 11K OHM 1/16W 0.1%
0402
1 R13 Susumu
Resistor RES 1K OHM 1/16W 0.1%
0402
2 R15,R16 Susumu
Resistor RES 2K OHM 1/16W 0.1%
0402
3 R17,R18,R24 Susumu
Resistor RES 390 OHM 1/16W 0.1%
0603
1 R20 Panasonic
Resistor RES 3.3K OHM 1/16W 1%
0402
1 R22 Panasonic
Resistor RES 23.2K OHM 1/10W 1%
0603
1 R28 Vishay Dale
Resistor RES - 15.8K,0603,1%, 1 R29 KOA Speer
Resistor RES 13K OHM 1/16W 1%
0603
1 R30 Yageo
Resistor RES - 10.5K OHM, 1%,1/10W,
0603
1 R31 Panasonic
Resistor RES 8.66K OHM 1/10W 1%
0603
1 R32 Panasonic
User Guide | Intel® Enpirion® Power Solutions
EM21xx Evaluation Board User Guide
11
Type
Description
Qty.
BOM Ref Des
Mfr. Name
Resistor RES - 6.81K OHM 0603 1/16W
1%
1 R33 Panasonic
Resistor RES - 3.74K OHM 0603 1/10W
1%
1 R34 Yageo
Resistor RES 2.43K OHM 1/10W 1%
0603
1 R35 Vishay/Dale
Resistor RES 90.9K OHM 1/16W 1%
0402
1 R38 Yageo
Resistor RES 100K OHM 1/16W 1%
0402
1 R40 Panasonic
Resistor RES 3.32K OHM 1/10W 1%
0402
1 R42 Panasonic
Resistor RES 133K OHM 1/10W 1%
0402
1 R43 Panasonic
Resistor RES 12.4K OHM 1/10W 1%
0402
1 R45 Panasonic
7. Revision History
Revision Description Revision Date
A Initial release. July 2018
© 2017 Intel Corporation. All rights reserved. Intel, the Intel logo, Altera, Enpirion, and the Enpirion logo are trademarks of Intel Corporation in the US and/or
other countries. Other marks and brands may be claimed as the property of others. Intel warrants performance of its FPGA and semiconductor products to current
specifications in accordance with Intel's standard warranty, but reserves the right to make changes to any products and services at any time without notice. Intel
assumes no responsibility or liability arising out of the application or use of any information, product, or service described herein except as expressly agreed to
in writing by Intel. Intel customers are advised to obtain the latest version of device specifications before relying on any published information and before placing
orders for products or services.
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