MAX17222 Evaluation Kit
Evaluates: MAX17220–MAX17225
General Description
The MAX17222 evaluation kit (EV kit) evaluates the
MAX17220–MAX17225 IC family of ultra-low quiescent
current step-up DC-DC converters. The MAX17222 EV
kit features two independent circuits to evaluate two
different IC packages of the MAX17220–MAX17225
family. Both circuits on the EV kit operate over an input
range of 400mV to 5.5V, depending on load, with 0.88V
typical startup with 3kΩ load. Each circuit provides
resistor-configurable output voltages from 1.8V to 5V in
100mV/step.
The EV kit comes with the MAX17222ELT+ and
MAX17225ENT+ installed.
Quick Start
Required Equipment
●
●
●
●
MAX17222 EV kit
1.8V to 5V, 3A DC power supply
Electronic load capable of 225mA to 425mA
Digital voltmeter (DVM)
Procedure
The EV kit is fully assembled and tested. Follow the steps
below to verify board operation.
Caution: Do not turn on power supply until all
connections are completed.
Features
<<Testing the 3V Output Circuit>>
1)
2)
3)
4)
5)
6)
7)
●
Two Independent Circuits on One Board
• Evaluates the MAX17220–MAX17225 IC Family in
a 6-pin µDFN
• Evaluates the MAX17220–MAX17225 IC Family in
a 6-pin Wafer-Level Package (WLP)
●
400mV to 5.5V Input Range
● 1.8V to 5V Configurable Output Voltage in
100mV/step
●
Up to 100mA/225mA/425mA Output Current
●
Proven 2-Layer 1oz Copper PCB Layout
●
Demonstrates Compact Solution Size
● Fully Assemble and Tested
Verify that jumper JU101 is in its default position, as
shown in
Table 2.
Connect the power supply between the IN and nearest
GND terminal posts.
Connect the electronic load between the 3V output
and nearest GND terminal posts.
Connect the DVM between the 3V output and nearest
GND terminal posts.
Set the input power supply to 1.8V and turn on the
power supply.
Set the electronic load to 225mA and enable the
electronic load.
Verify that the voltage at the 3V terminal post is
approximately 3V.
Verify that jumper JU1 is in its default position, as
shown in
Table 1.
Connect the power supply between the IN1 and
nearest GND1 terminal posts.
Connect the electronic load between the 5V output
and nearest GND1 terminal posts.
Connect the DVM between the 5V output and a
nearest GND1 terminal posts.
Set the input power supply to 3V, and turn on the
power supply.
Set the electronic load to 425mA, and enable the
electronic load.
Verify that the voltage at the 5V terminal post is
approximately 5V.
<<Testing the 5V Output Circuit>>
1)
2)
MAX17222 EV Kit Files
FILE
MAX17222 EV BOM
MAX17222 EV PCB Layout
Diagrams
MAX17222 EV Schematic
MAX17222 EV Minimal
Component Schematic
DECRIPTION
EV Kit Bill of Material
EV Kit Layout
EV Kit Schematic
Minimal Component Circuit
3)
4)
5)
6)
7)
Ordering Information
appears at end of data sheet.
19-8762; Rev 3; 8/17
MAX17222 Evaluation Kit
Evaluates: MAX17220–MAX17225
Detailed Description of Hardware
Spare Resistors and Inductors
The MAX17222 EV kit evaluates the MAX17220–
MAX17225 IC family of ultra-low quiescent current step-
up DC-DC converters. The MAX17222 EV kit features two
independent circuits to evaluate two different IC packages
of the MAX17220–MAX17225 family. Both circuits on the
EV kit operate over an input range of 400mV to 5.5V.
Each circuit provides resistor-configurable output voltages
from 1.8V to 5V in 100mV/step.
The MAX17222 EV Kit comes with a MAX17222ELT+
(µDFN) and a MAX17225ENT+ (WLP) installed. The
MAX17222ELT+ circuit is configured for a 3V output, and
can deliver 225mA with 1.8V input. The MAX17225ENT+
circuit is configured for a 5V output, and can deliver
425mA with 3V input.
The EV kit provides spare resistors and inductors on the
PCB’s bottom side. The spare resistors can be used to
reconfigure the EV kit to a different output voltage (2V,
2.5V, 3V, or 3.3V). The spare inductors can be used to
reconfigure the EV Kit output current ratings.
Table 2. EN on MAX17222 (JU101)
JU101
SHUNT
POSITION
1-2*
2-3
Not
Installed
DESCRIPTION
Enabled. EN = IN (through pullup resistor R102)
Disabled. EN = GND
Enabled. EN = high (through internal pullup
resistor)
EN for the MAX17225 Circuit
The MAX17225 circuit on the EV kit provides a jumper
(JU1) to enable or disable the MAX17225. Refer to
Table
1
for JU1 jumper settings.
*Default
position.
Component Suppliers
SUPPLIER
Coilcraft
Murata/TOKO
TDK
Wurth Elektronik
WEBSITE
www.coilcraft.com
www.murata.com
www.tdk.com
www.we-online.com
EN for the MAX17222 Circuit
The MAX17222 circuit on the EV kit provides a jumper
(JU101) to enable/disable the MAX17222. Refer to
Table
2
for JU101 jumper settings.
Battery Holders
The MAX17222 EV kit provides battery holders for each
of the two circuits. The battery holder V1 can accommodate
a CR1632 Lithium Coin cell to power the MAX17225
circuit, while the V101 can hold an Energizer 364/363
silver oxide cell to power the MAX17222 circuit.
Note:
Indicate that you are using the MAX17220–MAX17225
when contacting these component suppliers.
Ordering Information
PART
MAX17222EVKIT#
#Denotes
RoHS
TYPE
EV Kit
Table 1. EN on MAX17225 (JU1)
JU1
SHUNT
POSITION
1-2*
2-3
Not Installed
DESCRIPTION
Enabled. EN = IN1 (through pullup resistor R2)
Disabled. EN = GND1
Enabled. EN = high (through internal pullup
resistor)
*Default
position.
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Maxim Integrated
│
2
MAX17222 Evaluation Kit
Evaluates: MAX17220–MAX17225
MAX17222 EV Kit Bill of Materials
ITEM
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
REF_DES
3V, 5V, LX,
LX1
C1, C101
C4, C104
IN, J1-J4,
GND, IN1,
GND1
JU1, JU101
L1
L1C
L1F
L1V
L1W
L1X
L1Y
L101
R1
R2, R102
R3, R4,
R103, R104
R101, R101C
R101A
R101B
R101D
SU1, SU101
U1
U101
DNI/D
NP
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
QTY
4
2
2
8
2
1
1
1
1
1
1
1
1
1
2
4
2
1
1
1
2
1
1
MFG PART #
131-4353-00
GRM155R60J106M
E44
GRM155R61A106M
E44
1514-2
PEC03SAAN
DFE201612E-2R2M
MLP1005M1R0DT0
S1
DFE160808S-
1R0M=P2
DFM18PAN2R2MG
0L
DFE201612E-1R0M
74479299222
74438357022
XFL4020-222ME
MFG
TEKTRONICS
MURATA
MURATA
KEYSTONE
SULLINS
MURATA
TDK
MURATA
MURATA
MURATA
WURTH
ELECTRONICS
INC
WURTH
ELECTRONICS
INC
VALUE
131-4353-00
10UF
10UF
1514-2
PEC03SAAN
2.2UH
1UH
1UH
2.2UH
1UH
2.2UH
2.2UH
2.2UH
0
33M
0
133K
768K
324K
80.6K
DESCRIPTION
CONNECTOR; WIREMOUNT; CIRCUIT BOARD TEST POINT
MINIATURE PROBE; STRAIGHT; 4PINS;
CAPACITOR; SMT (0402); CERAMIC CHIP; 10UF; 6.3V;
TOL=20%; TG=-55 DEGC TO +85 DEGC; TC=X5R;
CAPACITOR; SMT (0402); CERAMIC CHIP; 10UF; 10V;
TOL=20%; TG=-55 DEGC TO +85 DEGC; TC=X5R;
TERMINAL; TURRET; PIN DIA=0.090IN; TOTAL
LENGTH=0.105IN; BOARD HOLE=0.098IN; BRASS; TIN
PLATING;
CONNECTOR; MALE; THROUGH HOLE; BREAKAWAY;
STRAIGHT; 3PINS
INDUCTOR; SMT (0806); WIREWOUND CHIP; 2.2UH; TOL=+/-
20%; 1.8A
INDUCTOR; SMT (0402); FERRITE CHIP; 1UH; TOL=+/-20%;
0.5A
INDUCTOR; SMT (0603); MAGNETICALLY SHIELDED; 1UH;
TOL=+/-20%; 1.9A
INDUCTOR; SMT (0603); CERAMIC CHIP; 2.2UH; TOL=+/-20%;
1.1A;
INDUCTOR; SMT (0806); WIREWOUND CHIP; 1UH; TOL=+/-
20%; 2.9A
INDUCTOR; SMT (1210); MOLDED CHIP; 2.2UH; TOL=+/-20%;
2.1A
EVKIT PART-INDUCTOR; SMT; SHIELDED; 2.2UH; TOL=+/-
20%; 5.2A;
INDUCTOR; SMT; METAL COMPOSITE CORE; 2.2UH; TOL=+/-
20%; 8A; -40 DEGC TO +125 DEGC
RESISTOR; 1206; 0 OHM; 0%; JUMPER; 0.25W; THICK FILM
RESISTOR; 0402; 33M OHM; 5%; 400PPM; 0.063W; THICK
FILM
RESISTOR; 0402; 0 OHM; 0%; JUMPER; 0.10W; THICK FILM
RESISTOR; 1206; 133K OHM; 1%; 100PPM; 0.25W; THICK FILM
RESISTOR; 1206; 768K OHM; 1%; 100PPM; 0.25W; THICK FILM
RESISTOR; 1206; 324K OHM; 1%; 100PPM; 0.25W; THICK FILM
COILCRAFT
VISHAY
CRCW12060000ZS; DALE/PANASO
ERJ-8GEY0R00V
NIC
STACKPOLE
ELECTRONICS
HMC0402JT33M0
INC
ERJ-2GE0R00X
RMCF1206FT133K
RMCF1206FT768K
RMCF1206FT324K
RMCF1206FT80K6
SX1100-B
MAX17225ENT+
MAX17222ELT+
PANASONIC
STACKPOLE
ELECTRONICS
INC
STACKPOLE
ELECTRONICS
INC
STACKPOLE
ELECTRONICS
INC
STACKPOLE
ELECTRONICS
INC
KYCON
MAXIM
MAXIM
MEMORY
PROTECTION
DEVICES INC.
MEMORY
PROTECTION
DEVICES INC.
MAXIM
3M
ELECTRONIC
SOLUTIONS
DIVISION
N/A
N/A
KEYSTONE
RESISTOR; 1206; 80.6K OHM; 1%; 100PPM; 0.25W; THICK
FILM
TEST POINT; JUMPER; STR; TOTAL LENGTH=0.24IN; BLACK;
INSULATION=PBT;PHOSPHOR BRONZE CONTACT=GOLD
SX1100-B
PLATED
MAX17225ENT EVKIT PART - IC; PACKAGE OUTLINE: 21-100128; PACKAGE
+
CODE: N60E1+1; WLP6
MAX17222ELT EVKIT PART - IC; PACKAGE OUTLINE: 21-0164; PACKAGE
+
CODE: L622-1; DFN6
BHX1-1632-
SM
BATTERY HOLDER; SMT; CR1632 SURFACE MOUNT
BATTERY RETAINER WITH INSULATOR; CONTACTS:
PHOSPHOR BRONZE C5191; NICKEL PLATED 80-150U THICK
BATTERY HOLDER; SMT; COIN CELL RETAINER FOR 6.8MM
DIA. BATTERIES; 0.25MM PHOSPHOR BRONZE; NICKEL
PLATED
PCB:MAX
BUMPER; BLACK-HEMISPHERICAL SHAPE EVKIT EH0231;
0.44D/0.2BH; RESILIENT ELASTOMER POLYURETHANE
PACKAGE OUTLINE 0402 NON-POLAR CAPACITOR
PACKAGE OUTLINE 0603 NON-POLAR CAPACITOR
TEST POINT; PIN DIA=0.1IN; TOTAL LENGTH=0.3IN; BOARD
HOLE=0.04IN; WHITE; PHOSPHOR BRONZE WIRE SILVER;
24
V1
-
1
BHX1-1632-SM
25
26
V101
PCB
-
-
1
1
BK-879
MAX
BK-879
PCB
SJ-
5003(BLACK)
OPEN
OPEN
N/A
27
28
29
30
TOTAL
MTH1-MTH4
C2, C3,
C102, C103
C5, C105
TP1-TP8
DNI
DNP
DNP
DNP
4
0
0
0
49
SJ-5003(BLACK)
N/A
N/A
5002
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Maxim Integrated
│
3
www.maximintegrated.com
LX
3V
DNI
1
1
3
R104
2
1
4
R101
GND
GND
3V
DNI
L101
2.2UH
IN
IN
U101
5
4
23
5
4
2
1
2
R103
0
MAX17222 Evaluation Kit
R102
C102
OPEN
C101
10UF
MAX17222 EV Kit Schematic
33M
5
IN
EN
GND
SEL
OUT
C104
C105
OPEN
LX
6
MAX17222ELT+
V101
BK-879
0
JU101
2
3
C103
OPEN
3
1
3V
133K
1%
10UF
GND
GND
GND
GND
GND
DNI
GND
DNI
DNI
1
2.2UH
L1
IN1
LX1
5V
IN1
U1
2
R3
1
1
0
R2
10UF
C1
JU1
2
3
C3
OPEN
1
33M
B2
B1
A3
MAX17225ENT+
IN
EN
GND
LX
OUT
SEL
A2
A1
B3
R1
3
5
4
R4
GND1
23
5
4
2
DNI
0
5V
GND1
5V
C4
V1
BHX1-1632-SM
C2
OPEN
0
10UF
C5
OPEN
GND1
GND1
GND1
GND1
GND1
Evaluates: MAX17220–MAX17225
Maxim Integrated
│
4
GND1
DNI
DNI
MAX17222 Evaluation Kit
Evaluates: MAX17220–MAX17225
MAX17222 Minimal Component Circuit Schematic
IN
1
L101
2.2UH
2
U101
MAX17222ELT+
C101
R102
5 IN
6 EN
3 GND
LX 2
OUT 1
SEL 4
R101
1%
GND
GND
GND
C107
10UF
10UF
3V
33M
133K
GND
IN1
1
L1
2.2UH
2
U1
MAX17225ENT+
C1
B2 IN
R2
B1 EN
A3 GND
LX A2
OUT A1
SEL B3
R1
C7
10UF
10UF
5V
33M
0
GND1
GND1
GND1
GND1
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Maxim Integrated
│
5
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