MAX38902 Evaluation Kit
Evaluates: MAX38902A/B/C/D
General Description
The MAX38902 evaluation kit (EV kit) evaluates
the MAX38902A/B/C/D IC family of low noise linear
regulators. The MAX38902 EV kit features two
independent circuits to evaluate two different IC
packages of the MAX38902A/B/C/D family. Both circuits
on the EV kit operate over an input range of 1.7V to 5.5V,
and provide any output voltage range of 0.6V to 5.3V.
The TDFN circuit evaluates the MAX38902A/B, while the
wafer-level package (WLP) circuit evaluates the
MAX38902C/D. Each circuit output on the EV kit delivers
up to 500mA of current.
The EV kit comes with the MAX38902A-ATA+ and the
MAX38902C-ANT+ installed.
MAX38902 EV Kit Files
FILE
MAX38902 EV BOM
MAX38902 EV PCB Layout
MAX38902 EV Schematic
MAX38902 EV Minimal
Component Schematic
DESCRIPTION
EV Kit Bill of Material
EV Kit Layout
EV Kit Schematic
Minimal Component Circuit
Quick Start
Required Equipment
●
MAX38902 EV kit
●
5.5V, 1A DC power supply
●
Electronic load capable of 500mA
●
Digital voltmeter (DVM)
Features
●
Two Independent Circuits on One Board
• Evaluates the MAX38902A/B IC in an 8-pin
(2mm x 2mm) TDFN
• Evaluates the MAX38902C/D IC in a 6-ball
(1.45mm x 0.86mm) WLP
●
1.7V to 5.5V Input Range
●
1.2V to 5.0V Jumper Configurable Output Voltage
(MAX38902A, On Board)
●
0.6V to 5.3V Resistor Configurable Output Voltage
(MAX38902B, with IC Replacement)
●
0.6V to 5.3V Resistor Configurable Output Voltage
(MAX38902C, On Board)
●
1.2V to 5.0V Factory-Preset Output Voltage
(MAX38902D, with IC Replacement)
●
Up to 500mA Output Current
●
Proven 2-Layer 1-oz Copper PCB Layout
●
Demonstrates Compact Solution Size
●
Fully Assembled and Tested
Ordering Information
appears at end of data sheet.
Procedure
Testing the (WLP) OUT1 Output Circuit
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 con-
nections are completed.
1)
2)
3)
4)
5)
6)
7)
Verify that jumper JU1 is in its default position as
shown in
Table 1.
Connect the 5.5V power supply between the IN1 and
nearest GND1 terminal posts.
Connect the 500mA electronic load between the
OUT1 and nearest GND1 terminal posts.
Connect the DVM between the OUT1 and nearest
GND1 terminal posts.
Turn on the power supply.
Enable the electronic load.
Verify that the voltage at the OUT1 terminal post is
approximately 3.3V.
319-100100; Rev 0; 11/17
MAX38902 Evaluation Kit
Evaluates: MAX38902A/B/C/D
Procedure
Testing the (TDFN) OUT Output Circuit
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 con-
nections are completed.
8)
9)
Verify that jumpers JU101, SELA and SELB are in
their default positions, as shown in
Table 2
and
Table 3.
Connect the 5.5V power supply between the IN and
nearest GND terminal posts.
The MAX38902 EV kit features two independent circuits
to evaluate two different IC packages of the MAX38902A/
B/C/D family. Both circuits on the EV kit operate over an
input range of 1.7V to 5.5V. The TDFN circuit evaluates
the MAX38902A/B, while the WLP circuit evaluates the
MAX38902C/D. Each circuit output on the EV kit delivers
up to 500mA of current.
The MAX38902 (TDFN) circuit on the EV Kit comes with
the MAX38902A-ATA+ installed and the output is jumper
configurable between 1.2V and 5.0V (Table
3),
and can
deliver 500mA of current.
The MAX38902 (WLP) circuit on the EV kit comes with
the MAX38902C-ANT+ installed and the output is resistor
configured to 3.3V, and can deliver 500mA of current. The
output voltage on the MAX38902C can be reconfigured to
other voltages from 0.6V to 5.3V by replacing feedback
resistors R1 and R2. Refer to the
MAX38902 IC data
sheet
for feedback resistor calculation.
10) Connect the 500mA electronic load between the OUT
and nearest GND terminal posts.
11) Connect the DVM between the OUT and nearest
GND terminal posts.
12) Turn on the power supply.
13) Enable the electronic load.
14) Verify that the voltage at the OUT terminal post is
approximately 5V.
EN for the MAX38902C/D (WLP) Circuit
Detailed Description of Hardware
The MAX38902 EV kit evaluates the MAX38902A/B/C/D
IC family. The MAX38902A/B/C/D are low noise linear
regulators that deliver 500mA of output current with only
12µV
RMS
of output noise from 10Hz to 100kHz. These
regulators require only 100mV of input-to-output head-
room at full load.
The MAX38902C/D (WLP) circuit on the EV kit provide a
jumper JU1 to enable or disable the MAX38902C (or the
MAX38902D after IC replacement). Refer to
Table 1
for
jumper setting of jumper JU1.
The MAX38902A/B (TDFN) circuit on the EV kit provide
a jumper JU101 to enable or disable the MAX38902A (or
the MAX38902B after IC replacement). Refer to
Table 2
for jumper setting of jumper JU101.
EN for the MAX38902A/B (TDFN) Circuit
Table 1. EN on MAX38902C/D (JU1)
JU1
SHUNT POSITION
1-2*
2-3
*Default Position
DESCRIPTION
Enabled. EN = IN1
Disabled. EN = GND1
Table 2. EN on MAX38902A/B (JU101)
JU1
SHUNT POSITION
1-2*
2-3
*Default Position
DESCRIPTION
Enabled. EN = IN
Disabled. EN = GND
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2
MAX38902 Evaluation Kit
Evaluates: MAX38902A/B/C/D
Output Selection (SELA and SELB) for the
MAX38902A/B (TDFN) Circuit
3)
4)
5)
Install a shunt on jumper SELA pins 2 and 3
(GS = GND).
Remove shunt from jumper SELB.
POK
is accessible
on the
POK
test point.
Install a 100kΩ resistor on R103.
POK
open-drain
is pulled up via resistor R103 (When the regulator
output reaches its regulation,
POK
goes low).
The MAX38902A/B (TDFN) circuit on the EV kit provide
a set of jumpers SELA and SELB to configure the output
voltage of the MAX38902A. Refer to
Table 3
for jumper
setting of jumpers SELA and SELB.
Evaluating the MAX38902B
The MAX38902A/B (TDFN) circuit can evaluate the
MAX38902B after IC (U101) replacement. When
evaluating the MAX38902B, modify the EV Kit with the
steps listed below:
1)
2)
Replace U101 with the MAX38902B-ATA+.
Install feedback resistors R101 and R102 to obtain
the desired output voltage between 0.6V and 5.3V
(Refer to the MAX38902 IC data for feedback resistor
calculations).
Evaluating the MAX38902D
The MAX38902C/D (WLP) circuit can evaluate the
MAX38902D after IC (U1) replacement. The MAX38902D
can be factory trimmed to any voltage between 0.7V
and 5.3V in 50mV steps. Contact the factory to order
the MAX38902D with the desired factory-preset output
voltages.
Table 3. SELA and SELB on MAX38902A (SELA, SELB)
SELA
SHUNT POSITION
Not Installed
1-2
Not Installed
Not Installed
2-3
2-3
2-3
1-2
1-2*
*Default Position
SELA
CONNECTION
Hi-Z
IN
Hi-Z
Hi-Z
GND
GND
GND
IN
IN
SHUNT POSITION
1-2
Not Installed
2-3
Not Installed
2-3
1-2
Not Installed
2-3
1-2*
SELB
SELB
CONNECTION
IN
Hi-Z
GND
Hi-Z
GND
IN
Hi-Z
GND
IN
OUTPUT
VOLTAGE
1.2
1.5
1.8
2.5
3.0
3.1
3.3
4.0
5.0
Ordering Information
PART
MAX38902EVKIT#
#Denotes RoHS compliant.
TYPE
EV Kit
Component Suppliers
SUPPLIER
Murata/TOKO
TDK
Samsung Electro-Mechanics
America. Inc.
WEBSITE
www.murata.com
www.tdk.com
www.samsungsem.com
Note:
Indicate that you are using the MAX38902A/B/C/D when
contacting these component suppliers.
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3
MAX38902 Evaluation Kit
Evaluates: MAX38902A/B/C/D
MAX38902 EV Kit Bill of Materials
ITEM
1
QTY
2
REF DES
C1, C101
VAR STATUS
Pref
MAXINV
20-00U01-77
MFG PART #
C1608C0G1H103J;
CGA3E2C0G1H103J080AD;
GRM1885C1H103JA01
GMC10X7R475K6R3NT;
CL10B475KQ8NQNC
MANUFACTURER
TDK; MURATA
CAL-CHIP ELECTRONIC INC./
SAMSUNG EL
VALUE
0.01µF
DESCRIPTION
CAPACITOR; SMT (0603); CERAMIC CHIP; 0.01µF;
50V; TOL = 5%; TG = -55°C to +125°C; TC = C0G
CAPACITOR; SMT (0603); CERAMIC CHIP; 4.7µF; 6.3V;
TOL = 10%; MODEL = TG = -55°C TO +125°C; TC = X7R;
NOT RECOMMENDED FOR NEW DESIGN-USE 20-004u7-16
TERMINAL; TURRET; PIN DIA = 0.090IN; TOTAL LENGTH = 0.105IN;
BOARD HOLE = 0.098IN; BRASS; TIN PLATING;
RECOMMENDED FOR BOARD THICKNESS = 0.062IN
CONNECTOR; MALE; THROUGH HOLE;
BREAKAWAY; STRAIGHT; 3PINS
TEST POINT; PIN DIA = 0.1IN; TOTAL LENGTH = 0.3IN;
BOARD HOLE = 0.04IN; WHITE; PHOSPHOR BRONZE WIRE SILVER;
NOT FOR COLD TEST
RESISTOR; 0603; 909KΩ; 1%; 100PPM; 0.1W; THICK FILM
RESISTOR; 0603; 200K; 1%; 100PPM; 0.10W; THICK FILM
RESISTOR; 0603; 0Ω; 0%; JUMPER; 0.1W; THICK FILM
TEST POINT; JUMPER; STR; TOTAL LENGTH = 0.256IN; BLACK;
INSULATION = PBT CONTACT = PHOSPHOR BRONZE;
COPPER PLATED TIN OVERALL
CONNECTOR; WIREMOUNT;
CIRCUIT BOARD TEST POINT MINIATURE PROBE; STRAIGHT; 4PINS
TEST POINT; PIN DIA = 0.1IN; TOTAL LENGTH = 0.3IN; BOARD HOLE = 0.04IN;
BLACK; PHOSPHOR BRONZE WIRE SILVER PLATE FINISH;
RECOMMENDED FOR BOARD THICKNESS = 0.062IN; NOT FOR COLD TEST
TEST POINT; PIN DIA = 0.1IN; TOTAL LENGTH = 0.3IN;
BOARD HOLE = 0.04IN; RED; PHOSPHOR BRONZE WIRE SILVER PLATE FINISH;
RECOMMENDED FOR BOARD THICKNESS = 0.062IN; NOT FOR COLD TEST
EVKIT PART - IC; MAX38902C-ANT+; WLP6;
PACKAGE OUTLINE DEVICE: 21-100055; PKG. CODE: N60C1+1
EVKIT PART - IC; MAX38902A-ATA+;
PACKAGE OUTLINE DEVICE: 21-0168; PACKAGE CODE XXXX
PCB:MAX
2
4
C2, C3, C102, C103
IN, GND, IN1, OUT,
GND1, OUT1, GND_OUT,
GND1_OUT
JU1, JU101,
SELECTA, SELECTB
POK
R1
R2
R101
SU1-SU4
Pref
20-004U7-R1
4.7µF
3
8
Pref
02-15142-00
1514-2
KEYSTONE
1514-2
4
4
Pref
01-PEC03SAAN3P-21
PEC03SAAN
SULLINS
PEC03SAAN
5
6
7
8
9
1
1
1
1
4
Pref
Pref
Pref
Pref
Pref
02-TPMINI5002-00
80-0909K-AA4
80-0200K-24
80-0000R-AA6
02-JMPFSTC02SYAN-00
5002
CRCW0603909KFK
CRCW06032003FK
CRCW06030000Z0
STC02SYAN
KEYSTONE
VISHAY DALE
VISHAY DALE
VISHAY DALE
SULLINS ELECTRONICS CORP.
N/A
909K
200K
0
STC02SYAN
10
4
TP3, TP4, TP5, TP6
Pref
01-131435300-10
131-4353-00
TEKTRONICS
131-4353-00
11
2
TP_GND, TP_GND1
Pref
02-TPMINI5001-00
5001
KEYSTONE
N/A
12
2
TP_OUT, TP_OUT1
Pref
02-TPMINI5000-00
5000
KEYSTONE
N/A
13
14
15
TOTAL
1
1
1
37
U1
U101
PCB
Pref
Pref
-
00-SAMPLE-01
00-SAMPLE-02
EPCB
MAX38902C-ANT+
MAX38902A-ATA+
MAX
MAXIM
MAXIM
MAXIM
MAX38902C-ANT+
MAX38902A-ATA+
PCB
-
DO NOT PURCHASE(DNP)
ITEM
QTY
REF DES
TP_IN, TP_IN1, TP1_OUT,
TP1_OUT1, TP_GND_IN,
TP_GND1_IN,
TP1_GND_OUT,
TP1_GND1_OUT
C1
C2
C2
C4, C104
R3, R105
R102-R104
VAR STATUS
MAXINV
MFG PART #
MANUFACTURER
VALUE
DESCRIPTION
1
8
DNP
02-TPMINI5002-00
5002
KEYSTONE
N/A
TEST POINT; PIN DIA = 0.1IN; TOTAL LENGTH = 0.3IN; BOARD HOLE = 0.04IN;
WHITE; PHOSPHOR BRONZE WIRE SILVER; NOT FOR COLD TEST
2
3
4
5
6
7
TOTAL
0
0
0
2
2
3
15
DNP
DNP
DNP
DNP
DNP
DNP
20-00U01-R0
20-004U7-18
20-004U7-A66
N/A
N/A
N/A
C1608C0G1E103J
C1608X5R1C475K080AC
GRM188C71A475KE11;
C1608X7S1A475K080AC
N/A
N/A
N/A
TDK
TDK/TAIYO YUDEN
MURATA; TDK
N/A
N/A
N/A
0.01UF
4.7µF
4.7µF
OPEN
SHORT
OPEN
CAPACITOR; SMT (0603); CERAMIC CHIP; 0.01µF; 25V; TOL = 5%;
MODEL=; TG = -55°C TO +125°C; TC = C0G
CAPACITOR; SMT (0603); CERAMIC CHIP; 4.7µF; 16V; TOL = 10%; MODEL=;
TG = -55°C TO +85°C; TC = X5R
CAPACITOR; SMT (0603); CERAMIC CHIP; 4.7µF; 10V; TOL = 10%;
TG = -55°C TO +125°C; TC = X7S
PACKAGE OUTLINE 0603 NON-POLAR CAPACITOR - EVKIT
PACKAGE OUTLINE 0603 RESISTOR - EVKIT
PACKAGE OUTLINE 0603 RESISTOR - EVKIT
PACKOUT (These are purchased parts but not assembled on PCB and will be shipped with PCB)
ITEM
1
2
3
4
5
6
TOTAL
QTY
1
1
1
1
1
4
9
REF DES
PACKOUT_BOX
PACKOUT_BOX
PACKOUT_BOX
PACKOUT_BOX
PACKOUT_BOX
BUMP1-BUMP4
VAR STATUS
Pref
Pref
Pref
Pref
Pref
DNI
MAXINV
88-00711-SML
87-02162-00
85-MAXKIT-PNK
EVINSERT
85-84003-006
02-SJ5003-00
MFG PART #
88-00711-SML
87-02162-00
85-MAXKIT-PNK
EVINSERT
85-84003-006
SJ-5003(BLACK)
MANUFACTURER
N/A
N/A
N/A
N/A
N/A
3M ELECTRONIC
SOLUTIONS DIVISION
VALUE
?
?
?
?
?
SJ-5003(BLACK)
DESCRIPTION
BOX;SMALL BROWN 9 3/16X7X1 1/4 - PACKOUT
ESD BAG;BAG;STATIC SHIELD ZIP 4inX6in;W/ESD LOGO - PACKOUT
PINK FOAM;FOAM;ANTI-STATIC PE 12inX12inX5MM - PACKOUT
WEB INSTRUCTIONS FOR MAXIM DATA SHEET
LABEL(EV KIT BOX) - PACKOUT
BUMPER; BLACK-HEMISPHERICAL SHAPE EVKIT EH0231;
0.44D/0.2BH; RESILIENT ELASTOMER POLYURETHANE
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│
4
4
3
2
OPEN
JU101
PEC03SAAN
SELECTB
OPEN
PEC03SAAN
9
GND_IN
R102
SELECTA
PEC03SAAN
TP_GND
GND_OUT
GND
1514-2
GND
GND
DNI
1514-2
GND
DNI
POK
IN1
DNI
U1
IN1
1514-2
1.7V TO 5.5V
A1
IN
GND
EN
FB/OUTS
B3
BYP
B2
0.01UF
MAX38902C-ANT+
OUT1
DNI
OUT
C1
B1
OUT1
1514-2
IN1
131-4353-00
R3
A2
A3
C4
SHORT
1
C2
4.7UF
OUT1
131-4353-00
TP_OUT1
1
4
3
2
OPEN
1
909K
R1
C3
4.7UF
1
3
4
2
4
3
2
JU1
PEC03SAAN
GND1_IN
GND1
1514-2
TP_GND1
GND1_OUT
200K
R2
GND1
GND1
1514-2
DNI
Evaluates: MAX38902A/B/C/D
GND1
DNI
2
3
4
2
3
4
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U101
MAX38902A-ATA+
DNI
IN
DNI
OUT
OUT
BYP
0.01UF
IN
1514-2
1.7V TO 5.5V
1
IN
GND
EN
SELA
SELB
EP
R101
R103
4.7UF
OPEN
8
7
OUT
131-4353-00
TP_OUT
R105
2
3
4
OUTS
6
5
C103
C101
OUT
1514-2
MAX38902 Evaluation Kit
IN
131-4353-00
SHORT
1
0
1
3
MAX38902 EV Kit Schematic
1
C104
OPEN
1
4
3
2
4.7UF
C102
R104
4
2
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5
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