The MxL7704 evaluation board provides a platform to evaluate the features and performance of the
MxL7704. The MxL7704 is a five output Universal PMIC optimized for powering low power FPGAs, DSPs,
and microprocessors from 5V inputs.
The MxL7704 power module and evaluation board come in two configurations which are summarized in
Table 1.
Please refer to the MxL7704 datasheet for additional information about the MxL7704.
Ordering Information
V
V
V
V
V
V
V
V
(1)
OUT1
OUT2
OUT3
OUT4
OUT1
OUT2
OUT3
OUT4
3.3
1.8
1.35
1.2
3.3
1.8
1.35
0.85
1.5
1
Table 1: Evaluation Board Ordering Part Numbers
PMICEvaluation BoardChannelOutput Voltage (V)Switching Frequency (MHz)
MxL7704-AQB-TMxL7704-A-EVB
MxL7704-XQB-TMxL7704-X-EVB
NOTE:
1. Refer to www.exar.com/MxL7704 for most up-to-date Ordering Information
Figure 1: Top View of MxL7704-A-EVBFigure 2: Top View of MxL7704-X-EVB
2/28/18 1
MxL7704 EVB Manual
I2C
MxL7704
PGOOD
VOUT_LDO
SEQ EN
VOUT2
VOUT3VOUT1
GLOBAL EN
ADC IN
VOUT4
VIN
Evaluation Board Overview
The block diagram shown in Figure 3 illustrates the connection points.
Overview / Set-Up
System Set-Up
Jumpers are factory installed per Table 2 to configure the EVB for operation. Jumper and testing options
are described in the next sections. Refer to the product data sheet for additional information.
Table 2: Factory Settings
JumperFactory SettingDescription
Digi_Pwr to P5VJ6, Jumper 1-2Enables all pull-up resistors.
2/28/18 2
Figure 3: Block Diagram MxL7704 EVB
MxL7704 EVB Manual
Powering Up the Evaluation Board
■
Connect P2 (VIN+) and P3 (VIN-) to a 5V power supply. See Note A.
■
Turn on the power supply. The EVB will power up and regulate the outputs as follows:
Channel 1: 3.3V
Channel 2: 1.8V
Channel 3: 1.35V
Channel 4: 1.2V (MXL7704-A-EVB) or 0.85V (MXL7704-X-EVB)
LDO: 3.3V
Set Up
Monitoring or Testing V
■
The outputs may be left open or connected to an external load. A low impedance connection will
provide the best load regulation.
OUT
Note A
Note A
Figure 4: VIN Connection
2/28/18 3
MxL7704 EVB Manual
Typical Transient Response
Typical Output Transient Response
The following waveforms were captured on the MXL7704-A-EVB and MXL7704-X-EVB.
V
OUT
80mV / DIV
I
OUT
0.5A / DIV
200µs / DIV
VIN = 5V, V
f = 1kHz
L
= 2.2µH
OUT
C
= 22µF, 6.3V X5R Ceramic
OUT
C
= 2 x 10µF, 6.3V X5R Ceramic
OUT
= 3.3V at 1A/µs Load Step
OUT
Figure 5: 3.3V Output Transient Response on Channel 1
2/28/18 4
MxL7704 EVB Manual
V
OUT
30mV / DIV
I
OUT
0.5A / DIV
Typical Transient Response
200µs / DIV
V
OUT
20mV / DIV
I
OUT
0.5A / DIV
VIN = 5V, V
= 1.8V at 1A/µs Load Step
OUT
f = 1kHz
L
= 1µH
OUT
C
= 2 x 22µF, 6.3V X5R Ceramic
OUT
C
= 10µF, 6.3V X5R Ceramic
OUT
Figure 6: 1.8V Output Transient Response on Channel 2
200µs / DIV
VIN = 5V, V
= 1.35V at 1A/µs Load Step
OUT
f = 1kHz
L
= 0.47µH
OUT
C
= 2 x 22µF, 6.3V X5R Ceramic
OUT
Figure 7: 1.35V Output Transient Response on Channel 3
2/28/18 5
MxL7704 EVB Manual
V
OUT
30mV / DIV
I
OUT
0.5A / DIV
Typical Transient Response
200µs / DIV
V
OUT
20mV / DIV
I
OUT
0.5A / DIV
VIN = 5V, V
= 1.2V at 10A/µs Load Step
OUT
f = 1kHz
L
= 0.47µH
OUT
C
= 3 x 47µF, 6.3V X5R Ceramic
OUT
Figure 8: MxL7704-AQB 1.2V Output Transient Response on Channel 4
200µs / DIV
VIN = 5V, V
= 0.85V at 10A/µs Load Step
OUT
f = 1kHz
L
= 0.47µH
OUT
C
= 5 x 47µF, 6.3V X5R Ceramic
OUT
Figure 9: MxL7704-XQB 0.85V Output Transient Response on Channel 4
2/28/18 6
MxL7704 EVB Manual
Power Sequencing
VOUT1LDO
OUT2VOUT3
V
VOUT4
Figure 10: MxL7704-AQB Power-Up Sequencing
VOUT1, LDO
OUT2
V
VOUT3
VOUT4
VOUT1LDO
OUT2
V
VOUT3
VOUT4
Figure 11: MxL7704-AQB Power-Down
Sequencing
VOUT1, LDO
V
OUT2
VOUT3
VOUT4
Figure 12: MxL7704-XQB Power-Up Sequencing
2/28/18 7
Figure 13: MxL7704-XQB Power-Down
Sequencing
MxL7704 EVB Manual
VOUT2
PGND2
Pin Configuration
Pin Conguration
VDDIO
SDA
SCL
SEQ EN
PG1
GLOBAL EN
VIN
LDO
5VSYS
VOUT3
3231302928272625
1
2
3
4
LX3
VIN3
VIN1
LX1
MxL7704
5
PAD PGND
6
7
8
910111213141516
LX2
VIN2
VIN4
LX4
PGND1
LX4
VOUT1
24
23
22
21
20
19
18
17
LX4
5VSYS
AGND
AN0
AN1
PG2
VOUT4
PGND4
PGND4
Top View, 5mm x 5mm QFN-32
Figure 14: Pin Configuration
2/28/18 8
MxL7704 EVB Manual
PG2
MxL7704-A-EVB Schematic
VOUT2_FB
GLO EN
AGND
PGND
AGND
0 Ohm
PGND
4.7 Kohm
4.7 Kohm
4.7 Kohm
4.7 Kohm
4.7 Kohm
4.7 Kohm
PG1
SEQ EN
SCL
SDA
GLO EN
PG2
SEQ EN
PG1
GLO EN
0603
0603
R3
DNP
R4
0 Ohm
10uF
DNP
AGNDAGND
R7
0603
PGND
AGND
0603
0603
0603
0603
R18
0603
R19
0603
R20
HDR_1x1
HDR_1x1
AGND
VOUT2
C2
VOUT2
C4
C6
22uF
C8
22uF
P5V
P5V
PGND
R15
R16
R17
1
1
VOUT2_FB
L2
0603
0 Ohm
1uH
1210
LX2
VOUT2_FB_R
0.47uH
C19
47uF
C23
47uF
C27
47uF
C31
DNP
C34
DNP
C35
DNP
0603
0603
R14
0 Ohm
R13
DNP
VOUT4_FB
Digi_Pwr
P5
HDR_1x1
P4
3.3V LDO
VOUT4
1
HDR_1x1
P9
P10
1
PGND
3.3V LDO
AGND
3.3V LDO
1uF
C9
2.2uF
0.1uF
R5
C13
0.1uF
PGND
9
VOUT2
10
PGND2
11
LX2
12
VIN2
13
VIN4
14
LX4
15
LX4
16
LX4LX4
LX4
L4
1210
VOUT4
VOUT4
AGND
0.1uF
AGND
0.1uF
P6
HDR_1x1
HDR_1x1
VOUT3
1
HDR_1x1
HDR_1x1
P11
1
PGND
PGND
SEQ EN
SDA
SCL
PG1
GLO EN
SEQ EN
SCL
PG1
P5V
AGND
C10
C14
5
8
3
7
6
4
PG1
3.3V LDO
SDA
GLOBAL EN
SEQ EN
SCL
VIN
PGND4
VOUT4
PGND4
AGND
AN1
AN0
PG2
17
19
20
21
18
PGND
0 Ohm
C36
C37
22
VOUT4_FB_R
AGND
R10
PG2
AN1
AN0
0603
VOUT4_FB
PG2
AN0
AN1
AN0
AN1
AGND
HEADER_1X2_2.54 mm_M
2
HDR_1x1
P7
1
VOUT2
HDR_1x1
P12
1
PGND
EVB Schematic
VOUT3_FB
AGND
SDA
PGND
C12
1uF
AGND
C15
1uF
10uF
LX3
VIN3
VIN1
LX1
PGND
33
VOUT3_FB_R
32
31
30
29
28
PGND
27
26
25
VOUT1_FB_R
0 Ohm
MxL7704
U1
C22
C26
0.1uF
PGND
C28
1uF
0603
DNP
AGND
AGND
AGND
SEQ EN
HEADER_1X2_2.54 mm_M
1
2
J2
AGND
PG1
PG2
3
2
1
HEADER_1X3_2.54 mm_M
J4
3
2
1
1
2
VDDIO
EPAD
VOUT3
5VSYS
PGND1
5VSYS
VOUT1
24
23
5VSYS
R9
0603
10 Ohm
P5V
GLO EN
1
J1
P8
1
VOUT1
P13
1
0603
0603
R2
0 Ohm
R1
DNP
47uF
C1
VOUT3
47uF
C3
C5
DNP
VOUT3
C7
DNP
C11
DNP
Digi_Pwr
VOUT3_FB
AGND
C17
0.1uF
R6
0 Ohm
0603
5VSYS5VSYS
LX1LX1
R8
L1
0603
2.2uH
VOUT1_FB
1210
22uF
C20
C24
DNP
VOUT1
10uF
C29
VOUT1
10uF
C32
0603
R11
R12
0 Ohm
VOUT1_FB
AGND
HEADER_1X3_2.54 mm_M
SDA
SCL
1
3
2
J3
1
3
2
AGND
AN1
AN0
HEADER_1X3_2.54 mm_M
1
3
2
J5
1
3
2
P5V
AGND
Digi_Pwr
3
HEADER_1X3_2.54 mm_M
J6
11223
L3
0.47uH
1210
LX3
P5V
PGND
PGND
C21
10uF
C25
10uF
C30
10uF
P5V
C33
10uF
P5V
D1
SMBJ5.0A
P5V
2
3
451
Mini-USB-B
7
6
P2
HDR_1x1
1
P5V
P3
HDR_1x1
1
PGND
Figure 15: MxL7704-A-EVB Schematic
2/28/18 9
MxL7704 EVB Manual
SEQ EN
SCL
GLO EN
PG1
AN0
AN1
SEQ EN
PG1
GLO EN
PG2
PG2
SDA
Digi_Pwr
AGND
PGND
PGND
P5V
PGND
AGND
PGND
AGND
PGND
PGND
3.3V LDO
VOUT4
VOUT1
VOUT2
PGND
AGND
AGND
Digi_Pwr
AGND
AGND
PGND
PGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
VOUT3
PGND
AGND
AGND
AGND
AGND
P5V
PGND
P5V
PGND
VOUT1
PGND
VOUT2
PGND
VOUT3
PGND
VOUT4
PGND
3.3V LDO
AGND
AGND
P9
HDR_1x1
1
C11
DNP
0603
R6
0 Ohm
C24
DNP
C26
0.1uF
P6
HDR_1x1
1
C32
10uF
C6
22uF
0603
R19
4.7 Kohm
0603
R14
0 Ohm
1210
L1
2.2uH
0603
R15
4.7 Kohm
C37
0.1uF
MxL7704
U1
VDDIO
1
SDA
2
SCL
3
SEQ EN
4
PG1
5
GLOBAL EN
6
VIN
7
3.3V LDO
8
VOUT2
9
PGND2
10
LX2
11
VIN2
12
VIN4
13
LX4
14
LX4
15
LX4
16
PGND4
17
PGND4
18
VOUT4
19
PG2
20
AN1
21
AN0
22
AGND
23
5VSYS
24
VOUT1
25
PGND1
26
LX1
27
VIN1
28
VIN3
29
LX3
30
5VSYS
31
VOUT3
32
EPAD
33
0603
R11
DNP
C33
10uF
C1
47uF
0603
R2
0 Ohm
C21
10uF
C14
0.1uF
C19
47uF
P13
HDR_1x1
1
J5
HEADER_1X3_2.54 mm_M
1
1
2
2
3
3
C35
DNP
0603
R10
0 Ohm
C15
1uF
P10
HDR_1x1
1
J2
HEADER_1X2_2.54 mm_M
1
2
P11
HDR_1x1
1
C2
10uF
0603
R8
0 Ohm
0603
R17
4.7 Kohm
C28
1uF
C20
22uF
1210
L4
0.47uH
0603
R20
4.7 Kohm
J1
HEADER_1X2_2.54 mm_M
1
2
Mini-USB-B
7
6
2
3
451
P8
HDR_1x1
1
0603
R13
DNP
1210
L3
1uH
C9
2.2uF
C36
0.1uF
0603
R4
0 Ohm
C30
10uF
C17
0.1uF
C29
10uF
P5
HDR_1x1
1
0603
R1
DNP
C31
47uF
C4
DNP
P7
HDR_1x1
1
0603
R9
10 Ohm
C7
DNP
0603
R5
0 Ohm
C10
1uF
C12
1uF
P2
HDR_1x1
1
J4
HEADER_1X3_2.54 mm_M
1
1
2
2
3
3
C8
22uF
C27
47uF
0603
R18
4.7 Kohm
P4
HDR_1x1
1
D1
SMBJ5.0A
1210
L2
2.2uH
0603
R16
4.7 Kohm
C22
10uF
0603
R12
0 Ohm
C3
47uF
0603
R7
0 Ohm
P12
HDR_1x1
1
J3
HEADER_1X3_2.54 mm_M
1
1
2
2
3
3
0603
R3
DNP
C25
10uF
C13
0.1uF
C23
47uF
J6
HEADER_1X3_2.54 mm_M
11223
3
C34
47uF
C5
DNP
P3
HDR_1x1
1
PG1
SEQ EN
SCL
SDA
SCL
SEQ EN
GLO EN
PG1
SDA
GLO EN
P5V
P5V
AGNDAGND
PG2
PG2
AN1
AN0
P5V
AN0
PGND
VOUT2_FB
VOUT2_FB_R
VOUT3_FB
VOUT3_FB_R
VOUT1_FB_R
VOUT1_FB
VOUT4_FB_R
LX4LX4
LX2
LX3
LX1LX1
VOUT3
5VSYS5VSYS
P5V
P5V
5VSYS
AN1
3.3V LDO
VOUT4_FB
VOUT4_FB
SEQ EN
VOUT1_FB
VOUT2_FB
VOUT3_FB
Digi_Pwr
GLO EN
SDA
SCL
AN0
AN1
PG1
PG2
P5V
P5V
VOUT1
VOUT2
VOUT4
MxL7704-X-EVB Schematic
EVB Schematic
Figure 16: MxL7704-X-EVB Schematic
2/28/18 10
MxL7704 EVB Manual
MxL7704 EVB PCB Layers
PCB
Figure 17: EVB PCB, Top View
2/28/18 11
MxL7704 EVB Manual
PCB
Figure 18: EVB PCB Layer 2, Ground Plane
2/28/18 12
MxL7704 EVB Manual
PCB
Figure 19: EVB PCB Layer 3, Signal Plane
2/28/18 13
MxL7704 EVB Manual
PCB
Figure 20: EVB PCB, Layer 4 Signal Plane
2/28/18 14
MxL7704 EVB Manual
PCB
Figure 21: EVB PCB, Layer 5 Ground Planes
2/28/18 15
MxL7704 EVB Manual
PCB
Figure 22: EVB PCB, Bottom View
2/28/18 16
MxL7704 EVB Manual
MxL7704 EVB Bill of Materials
Table 3: MxL7704-A-EVB Bill of Materials
Item Qty
11PCBMaxLinearPCB
21U1MaxLinearMXL7704-AQB-T
35
43
51C4DNPMurataGRM21BR60J106ME19 0805
66
73
81C9MurataGRM21BR60J225KA010805
91C10MurataGRM219R61A105KA010805
103
116
124
131C22MurataGRM188R60J106ME47D1608[0603]
141C24DNPMurataGRM21BR60J226ME39 0805
151D1LittlefuseSMBJ5.0ASMBJ
164
172
Reference
Designator
C1
C3
C19
C23
C27
C2
C29
C32
C5
C7
C11
C31
C34
C35
C6
C8
C20
C12
C15
C28
C13
C14
C17
C26
C36
C37
C21
C25
C30
C33
J1
J2
J3
J6
J4
J5
Manufacturer
MurataGRM219R60J476ME440805
MurataGRM21BR60J106ME190805
DNPMurataGRM219R60J476ME44 0805
MurataGRM21BR60J226ME390805
MurataGRM155R60J105KE19D0402
MurataGRM155R61A104MA010402
MurataGRM219R61A106ME470805
Wurth
Elektronik
Wurth
Elektronik
Part NumberPackage SizeComponent
5mm x 5mm x
0.9mm 32-pin
QFN
613003111212.54mm
613003111212.54mm
Bill of Materials
MxL7704EVB
Evaluation Board
MxL7704 Five Output
Universal PMIC with
8-bit ADC
CAP CER 47UF 6.3V X5R
CAP CER 10UF 6.3V X5R
CAP CER 10UF 6.3V X5R
CAP CER 47UF 6.3V X5R
CAP CER 22UF 6.3V X5R
CAP CER 2.2UF 6.3V X5R
CAP CER 1UF 10V X5R
CAP CER 1UF 6.3V X5R
CAP CER 0.1UF 10V X5R
CAP CER 10UF 10V X5R
CAP CER 10UF 6.3V X5R
CAP CER 22UF 6.3V X5R
Schottky Rectier
Header, 3-Pin
Header, 3-Pin
181L1 DeltaHMME32251E-2R2MSR
191L2 DeltaHMME32251E-1R0MSR
202
L3
L4
DeltaHMME32251E-R47MSR
HMME32251E
INDM3225X15M
HMME32251E
INDM3225X15M
HMME32251E
INDM3225X15M
Inductor
Inductor
Inductor
2/28/18 17
MxL7704 EVB Manual
MxL7704 EVB Bill of Materials (continued)
Table 3: MxL7704-A-EVB Bill of Materials (continued)
Bill of Materials
Item Qty
211P1DNP Molex5000750517Mini B
2212
234
249
251R9 PanasonicERJ-3GEYJ100VERA-0603
266
Reference
Designator
P2
P3
P4
P5
P6
P7
P8
P9
P10
P11
P12
P13
R1
R3
R11
R13
R2
R4
R5
R6
R7
R8
R10
R12
R14
R15
R16
R17
R18
R19
R20
Manufacturer
Wurth
Elektronik
DNP PanasonicERJ-PA3F1003VERA-0603
PanasonicERJ-3GEY0R00VERA-0603
PanasonicERJ-3GEYJ472VERA-0603
Part NumberPackage SizeComponent
74712870.32x0.10in
USB Mini-B Receptacle,
Right Angle, Thru-Hole
Blade connectors
Resistor
Resistor
Resistor
Resistor
Table 4: MxL7704-X-EVB Bill of Materials
Item Qty
11PCBMaxLinearPCB
21U1MaxLinearMXL7704-XQB-T
35
43
51C4DNPMurataGRM21BR60J106ME19 0805
66
Reference
Designator
C1
C3
C5
C19
C23
C27
C31
C34
C2
C29
C32
C6
C8
C20
Manufacturer
MurataGRM219R60J476ME440805
MurataGRM21BR60J106ME190805
MurataGRM21BR60J226ME390805
Part NumberPackage SizeComponent
5mm x 5mm x
0.9mm 32-pin
QFN
MxL7704EVB
Evaluation Board
MxL7704 Five Output
Universal PMIC with
8-bit ADC
CAP CER 47UF 6.3V X5R
CAP CER 10UF 6.3V X5R
CAP CER 10UF 6.3V X5R
CAP CER 22UF 6.3V X5R
2/28/18 18
MxL7704 EVB Manual
MxL7704 EVB Bill of Materials (continued)
Table 4: MxL7704-X-EVB Bill of Materials (continued)
Bill of Materials
Item Qty
73
81C9MurataGRM21BR60J225KA010805
91C10MurataGRM219R61A105KA010805
103
116
124
131C22MurataGRM188R60J106ME47D1608[0603]
141C24DNPMurataGRM21BR60J226ME39 0805
151D1LittlefuseSMBJ5.0ASMBJ
164
172
181
191L3 DeltaHMME32251E-1R0MSR
202L4 DeltaHMME32251E-R47MSR
211P1DNP MolexMini-USB 5000750517Mini B
2212
234
249
Reference
Designator
C7
C11
C35
C12
C15
C28
C13
C14
C17
C26
C36
C37
C21
C25
C30
C33
J1
J2
J3
J6
J4
J5
L1
L2
P2
P3
P4
P5
P6
P7
P8
P9
P10
P11
P12
P13
R1
R3
R11
R13
R2
R4
R5
R6
R7
R8
R10
R12
R14
Manufacturer
DNPMurataGRM219R60J476ME44 0805
MurataGRM155R60J105KE19D0402
MurataGRM155R61A104MA010402
MurataGRM219R61A106ME470805
Wurth
Elektronik
Wurth
Elektronik
DeltaHMME32251E-2R2MSR
Wurth
Elektronik
DNP PanasonicERJ-PA3F1003VERA-0603
PanasonicERJ-3GEY0R00VERA-0603
Part NumberPackage SizeComponent
613003111212.54mm
613003111212.54mm
HMME32251E
INDM3225X15M
HMME32251E
INDM3225X15M
HMME32251E
INDM3225X15M
74712870.32x0.10in
CAP CER 47UF 6.3V X5R
CAP CER 2.2UF 6.3V X5R
CAP CER 1UF 10V X5R
CAP CER 1UF 6.3V X5R
CAP CER 0.1UF 10V X5R
CAP CER 10UF 10V X5R
CAP CER 10UF 6.3V X5R
CAP CER 22UF 6.3V X5R
Schottky Rectier
Header, 3-Pin
Header, 3-Pin
Inductor
Inductor
Inductor
USB Mini-B Receptacle,
Right Angle, Thru-Hole
Blade connectors
RES SMD 100K OHM 1%
1/4W
RES SMD 0 OHM
JUMPER 1/10W
2/28/18 19
MxL7704 EVB Manual
MxL7704 EVB Bill of Materials (continued)
Table 4: MxL7704-X-EVB Bill of Materials (continued)
BOM / Disclaimer
Item Qty
251R9 PanasonicERJ-3GEYJ100VERA-0603
266
Reference
Designator
R15
R16
R17
R18
R19
R20
Manufacturer
PanasonicERJ-3GEYJ472VERA-0603
Part NumberPackage SizeComponent
RES SMD 10 OHM 5%
1/10W
RES SMD 4.7K OHM 5%
1/10W
MaxLinear, Inc.
5966 La Place Court, Suite 100
Carlsbad, CA 92008
760.692.0711 p
760.444.8598 f
www.maxlinear.com
High Performance Analog
1060 Rincon Circle
San Jose, California 95131 USA
669.265.6100 p
669.265.6101 f
Email: powertechsupport@exar.com
www.exar.com
The content of this document is furnished for informational use only, is subject to change without notice, and should not be construed as a
commitment by MaxLinear, Inc.. MaxLinear, Inc. assumes no responsibility or liability for any errors or inaccuracies that may appear in the
informational content contained in this guide. Complying with all applicable copyright laws is the responsibility of the user. Without limiting the
rights under copyright, no part of this document may be reproduced into, stored in, or introduced into a retrieval system, or transmitted in any
form or by any means (electronic, mechanical, photocopying, recording, or otherwise), or for any purpose, without the express written
permission of MaxLinear, Inc.
MaxLinear, Inc. may have patents, patent applications, trademarks, copyrights, or other intellectual property rights covering subject matter in
this document. Except as expressly provided in any written license agreement from MaxLinear, Inc., the furnishing of this document does not
give you any license to these patents, trademarks, copyrights, or other intellectual property.
Trademarks
Company and product names may be registered trademarks or trademarks of the respective owners with which they are associated.