Intel EM2260 User manual

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User Guide
Intel® Enpirion® Power Solutions
EM22xx Evaluation Board User Guide

User Guide | Intel® Enpirion® Power Solutions
EM22xx Evaluation Board User Guide
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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 ............................................................................................................................................................ 11
List of Figures
Figure 1: EM22xx Evaluation Board Overview (View From Top - EM2260 shown as an example) ..... 4
Figure 2: Jumper Table, Marked On The EM22xx 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

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1. Description
The EM22xx family are PowerSoC synchronous Dual Phase buck converters from the Intel®
Enpirion® Power Solutions family. The EM22xx series feature an advanced controller, gate
drivers, synchronous MOSFET switches, and high performance inductors. Only input and
output filter capacitors and a few small signal components are required for a complete
solution.
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 Loads Fits the on-board LD1, LD2 & LD3 socket
5 DMM 6 ½ digit
6 Oscilloscope 4 channels, 0.5 GHz BW
7 Cables >60A capability, eyelet terminal, 4 mm
diameter hole, 10 mm outer diameter

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3. Evaluation Board Overview
Figure 1: EM22xx Evaluation Board Overview (View From Top - EM2260 shown as an example)
EM2260
ENABLE
ON/OFF
INPUT
VOLTAGE
OUTPUT
VOLTAGE
SELECTOR
OUTPUT
GROUND
OUTPUT
DECOUPLING
OUTPUT
MONITOR
Ferrite Beads
OUTPUT
VOLTAGE
INPUT
GROUND
PMBus
Communication
Interface Dongle
Connector

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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 6 inches (15 cm). Using longer wires is possible,
provided that additional bulk is added to the board and the input voltage is
monitored at the board level. For lower Input voltages e.g. 5V further bulk
capacitance maybe required depending on the Power Supply being used. Please use
INPUT GROUND and INPUT VOLTAGE eyelet-terminated 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 6 inches (15 cm).
 Please observe the correct polarity.
3) Check jumper settings
 The board will arrive with one jumper on the J6 (enabling the Output through pulling
the CTRL pin high), one jumper on J14 (INT – this connects the on-board 5VCC supply)
and one jumper on J15 (PVIN_5V – 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. If operating
PVIN at 6V or lower an external 5V supply is required to ensure correct operation.
(For PVIN values below 6V the on-board switcher cannot guarantee a 5Vout output)
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.

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EM22xx Evaluation Board User Guide
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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; 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.
 The voltage range is marked on the board, as shown in Figure 2:
Vout Settings
0V50 V1
0V70 V2
0V85 V3
0V90 V4
0V95 V5
1V00 V6
1V15 V7
1V20 V8
Figure 2: Jumper Table, Marked On The EM22xx Evaluation Board Silk Screen
 For instruction on how to use the EM22xx GUI, please read “GUI User Guide.”
NOTE: To measure the Bode Plot of the DC-DC converter, J12 must be populated which is then used to connect the
probes of the phase analyzer.

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5. Evaluation Board Schematic
Figure 3: Evaluation Board Schematic – Power
SYNC
+
C45
100u
TP9
C43 DNI
RTUNE
V1
TP24
5V
Control Loop Injection
C65
+
C2
470u
R5
10K0
C76
C61
100nF(COG)
+
C18 470u
R6 DNI
+
C88
DN I
SALERT
CHF9
L8 28F0181-1SR-10
FB1
742792780
C79
C14
DNI
PGND
C15
100u
VDD3V3
C20
100u
C50
DNI
+
C54 680u
X2
TP5
PGOOD
J6
1 2 3
+
C22
100u
PVIN
+
C25 DNI
+
C84 DNI
+
C8
470u
R3
1K00
+
C7
470u
C52
DNI
J2
1 2
CH F10
47 0 n F/2 5V L ICC
CON TROL
C12
DNI
S1
EM22xxQI
VOUT_1
1
VOUT_2
2
VOUT_3
3
VOUT_4
4
PG
6
CTRL
7
SALRT
8
VDD33
9
5VCC
10
SDA
11
SCL
12
DISABLE0
13
NC14
14
PWM0
15
NC16
16
NC17
17
NC18
18
PVIN_19
19
PVIN_20
20
PVIN_21
21
PVIN_22
22
PVIN_23
23
PVIN_24
24
NC25
25
PGND_26
26
PGND-27
27
PGND_28
28
PGND_29
29
PGND_30
30
PGND_31
31
PGND_32
32
PGND_34
34
PGND_35
35
PGND_36
36
PGND_37
37
PGND_38
38
PGND_39
39
PGND_40
40
PGND_41
41
PGND_42
42
PGND_43
43
PGND_44
44
PGND_45
45
PGND_46
46
PGND_47
47
PGND_48
48
PGND_49
49
PGND_50
50
PGND_51
51
PGND_52
52
PGND_53
53
PHASE0
54
NC55
55
PHASE1
56
PGND_57
57
PGND_58
58
PGND_59
59
PGND_60
60
PGND_61
61
PGND_62
62
PGND_63
63
PGND_64
64
PGND_65
65
PGND_66
66
PGND_67
67
PGND_68
68
PGND_69
69
PGND_70
70
PGND_71
71
PGND_72
72
PGND_73
73
PGND_74
74
PGND_75
75
PGND_76
76
PGND_77 77 PGND_78 78 PGND_79 79 PGND_80 80 PGND_81 81 PGND_82 82 PGND_83 83
NC85 85
PVIN_86 86 PVIN_87 87 PVIN_88 88 PVIN_89 89 PVIN_90 90 PVIN_91 91
NC92 92 NC93 93
PWM1 94
NC95 95
DISABLE1 96
SENP 97
SENN 98
TRACK 99
ADDR 0 100 ADDR 1 101
RSET 102
RTUNE 103
SY NC 104
VOUT_105 105 VOUT_106 106 VOUT_107 107 VOUT_108 108
VOUT_110 110
VOUT_111 111
VOUT_112 112
VOUT_113 113
VOUT_114 114
VOUT_115 115
VOUT_116 116
VOUT_117 117
VOUT_118 118
VOUT_119 119
VOUT_120 120
VOUT_121 121
VOUT_122 122
VOUT_123 123
VOUT_124 124
VOUT_125 125
VOUT_126 126
VOUT_127 127
VOUT_128 128
VOUT_129 129
VOUT_130 130
VOUT_131 131
VOUT_132 132
VOUT_133 133
VOUT_134 134
VOUT_135 135
VOUT_136 136
VOUT_137 137
VOUT_138 138
VOUT_139 139
VOUT_140 140
VOUT_141 141
VOUT_142 142
VOUT_143 143
VOUT_144 144
VOUT_145 145
VOUT_146 146
VOUT_147 147
VOUT_148 148
VOUT_149 149
VOUT_150 150
VOUT_151 151
VOUT_152 152
PGND_33
33
VOUT_5
5
VOUT_109 109
PGND_84 84
1.2V
R29
14k3
R1
1K00
R31
5k36
R33
3k24
PVIN
L9 28F0181-1SR-10
V7
C68
X3
CHF13
C64
1.0V
Q1
2N7002K
2
1
3
VIN
SCL
C82
TP3
0.5V
CTRL
ADDR0
SYN C
J8
1
2
3
4
5 6 7
8
S2
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V4
SDA
C71
CHF4
4 7 0 n F/2 5V LICC
C49 DNI
V_OUT
CHF2
L10 28F0181-1SR-10
V8
R62
10K0
+
C92 DNI
X1
MTHn_320m334
+
C56
DNI
C63
VDD3V3
PG
R35
1k
TP10
C29 22u
C77
RVSET
C46 DNI
TP23
+
C89 DNI
SYN C
C80
ADDR1
+
C55 680u
C5 100u
L7 28F0181-1SR-10
R12
100R
ADDR1
+
C23
100u
C4
100u
+
C85
DNI
C51
DNI
0.9V
R7 DN I
R11
0R0
ADDR0
SMA1
5V
TP32
V6
C13
DNI
CHF11
+
C17
470u
0.7V
CHF5
TP26
C47 DNI
C28
22u
+
C24 DNI
TP25
CHF7
C75
R24 1K00/0.1%
J3
1 2 3
4
5
6
7
8
ADDR0
+
C87
DNI
LD3
1 3 2 4
56
78
910
1112
1314
1516
17 18 19 20
CHF8
4 7 0 nF/25V LIC C
C53
DNI
RTUNE
C11
DNI
TP2
GND
R20 392R
SY NC
R28
23K2
V_OUT
R30
7k68
R32
4k22
J13
1 2
J4
1 2 3
4
5
6
7
8
C3
100u
C72
+
C83 DNI
VTRACK
TP4
VSENN
+
C19 470u
V_OUT
TRACK
TP11
470uF/2.5V/3mOhm
L11 28F0181-1SR-10
TP14
C27
22u
LD1
1 3 2 4
56
78
910
1112
1314
1516
17 18 19 20
RTUNE
LD2
1 3 2 4
56
78
910
1112
1314
1516
17 18 19 20
125mm*125mm, 8Layers, 2oz Copper for all Layers
+
C40 100u
D1
A1 K
2
GND
+
C93 DNI
VTRACK
RVSET
V3
C60 DNI
TP13
C67
CHF12
47 0 n F/2 5 V L ICC
C78
1.15V
VTRACK1
+
C90
DNI
R23
DNI
PVIN
V2
TP15
V5
RVSET
C81
C9
100u
R64
DNI
VSENP
0.95V
ADDR1
R34
1k5
C10
100u
C70
L12 28F0181-1SR-10
+
C86 DN I
+
C6
470u
CTRL
+
C16 470u
X4
0.85V
TP22
CHF1
470nF/25V LIC C
J9
1
2
3
4
5 6 7
8
C26
22u
C21 2u2/10V
CH F6
47 0 n F/2 5V L ICC
TP27
J22 DNI
1 2
C69
100nF(COG)
TP12
C66
VDD3V3
+
C57
DNI
C62
C1 100u
R63 470R

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Figure 4: Evaluation Board Schematic – AUX
PVIN_5V
TP19
L1 22uH
NR6028T220M
C33 100p
R38
90K9
C34 100n
C37 47u
C35 47u
GND
TP6
5V0_AUX
AVINO
R45
12K4
R43 133K
EN5V
Tss = 1.41ms
5V
R42 3K32
5V_EXT
R41 10K0
5V Bias Supply 500mA
Ext_5V
VDD3V3
R37
10K0
BST5V
5V
C41 10u
J17
SS5V
FB5V
TP7
C38
4n7
C39 470p
C42 1u
R4 DNI
FSW 5V
Fsw=700kHz
C91 100nf
U2 ER3105QI
SS
1
SY NC
2
BOOT
3
PVIN
4
SW
5
PGND
6
FSW 12
COMP 11
FB 10
AVINO 9
POK 8
EN 7
EPAD
13
J21
1
1
3
3
5
5
22 44 66 88
7
7
9
910 10
5VSEL
R61
DNI
J15
1
2
R40
100K
PVIN
J14
1 2 3
PM Bus Components
CMP5V
R2 DNI
SW5V
GND
C36 47u
PVIN5V
POK5V
C44 10u
J16
PGOOD

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6. Bill of Materials
Table 2: Bill of Materials
Type Description Qty. BOM Ref Des Mfr. Name
Capacitor 100µF 6V3 10% X5R
1206
8 C1,C3,C4,C5,C9,C10,C15,C20 Kemet
Capacitor 470µF 2.5V 3 mΩ 8 C2,C6,C7,C8,C16,C17,C18,C19 Panasonic
Capacitor 2.2µF 16V 10% X6S
0402
1 C21 TDK
Capacitor 100µF, 20V, ESR=55
mΩ
4 C22 C23 C40 C45 Panasonic
Capacitor 22µF 25V 10% X5R
1206
4 C26,C27,C28,C29 Murata
Capacitor 100pF 50V 5% NP0
0402
1 C33 Taiyo
Yuden
Capacitor 100nF X7R 0402 10V
10%
1 C34 Murata
Capacitor 47µF 6.3V X5R 0805 3 C35,C36,C37 Taiyo
Yuden
Capacitor 4.7nF X7R 0402 25V
10%
1 C38 Murata
Capacitor 470pF 25V X7R 10%
0402
1 C39 Vishay
Capacitor 10µF 25V X5R 0805
10%
2 C41,C44
Capacitor 1µF 25V 20% X5R 0402 1 C42 Taiyo
Yuden
Capacitor 470nF 25V 20% X7R
0612
12 CHF1,CHF2,CHF4,CHF5,
CHF6,CHF7,CHF8,CHF9,
CHF10,CHF11,CHF12,CHF13
Murata
Capacitor 680UF 20% 20V T/H 2 C54,C55 Chemi-com
Capacitor 100nF X7R 0805 25V 20 C61,C62,C63,C64,C65,C66,C67,C68
C69,C70,C71,C72, C75,C76,C77
C78,C79,C80,C81,C82
Murata
Resistor 1k 1% 0805 1 R1 Panasonic
Resistor 1k 1% 0402 1 R3 Panasonic

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Type Description Qty. BOM Ref Des Mfr. Name
Resistor RES 10k OHM 1% 0402 3 R5,R37,R41 Panasonic
Resistor 0 OHM 5% 0402 1 R11 Panasonic
Resistor 100R OHM 1% 0402 1 R12 Panasonic
Resistor 392 OHM 0.1% 0603 1 R20 Panasonic
Resistor 1K OHM 0.1% 0402 1 R24 Panasonic
Resistor 23.2K OHM 1% 0402 1 R28 Panasonic
Resistor 14.3K 0603 1%, 1 R29 Panasonic
Resistor 7.68K OHM 1% 0603 1 R30 Panasonic
Resistor 5.36K OHM 1% 0603 1 R31 Panasonic
Resistor 4.22K OHM 1% 0603 1 R32 Panasonic
Resistor 3.24K OHM 0603 1% 1 R33 Panasonic
Resistor 1K5 OHM 0603 1% 1 R34 Panasonic
Resistor 1K OHM 1% 0603 1 R35 Panasonic
Resistor 90.9K OHM 1% 0402 1 R38 Yageo
Resistor 100K OHM 1% 0402 1 R40 Panasonic
Resistor 3.32K OHM 1% 0402 1 R42 Panasonic
Resistor 133K OHM 1% 0402 1 R43 Panasonic
Resistor 12.4K OHM 1% 0402 1 R45 Panasonic
Resistor 10K OHM 1% 0805 1 R62 Panasonic
Resistor 470R OHM 5% 0603 1 R63 Panasonic
LED LED GREEN CLEAR
0603
1 D1 LITE-ON
INC
Inductor INDUCTOR, 22UH, 1.3A, 1 L1 Taiyo
Yuden
Inductor Ferrite Bead, 115 ohm,
10 A, 1000 µohm
6 L7,L8,L9,L10,L11,L12 Laird Tech
MOSFET MOSFET N-CH 60V
300MA SOT23
1 Q1 Fairchild
Inductor FERRITE BEAD 220
OHM 0402
1 FB1 Wurth
Connector INTEL 25A SLAMER
LOAD CONNECTOR
3 LD1, LD2, LD3 Samtec
IC ER3105DI Wide VIN
500mA Synch Buck Reg
1 U2 Intel
Enpirion