MAX38904B [MAXIM]
MAX38904B TDFN Evaluation Kit;型号: | MAX38904B |
厂家: | MAXIM INTEGRATED PRODUCTS |
描述: | MAX38904B TDFN Evaluation Kit |
文件: | 总6页 (文件大小:414K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
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Evaluates: MAX38904B
MAX38904B TDFN Evaluation Kit
General Description
Quick Start
The MAX38904B TDFN evaluation kit (EV kit) evaluates
the MAX38904B in a TDFN package. The MAX38904B
is a low noise linear regulator. The EV kit operates over
an input range of 1.7V to 5.5V and provides a resistor
configurable output voltage range from 0.6V to 5.0V. The
EV kit can deliver up to 2A of current.
Required Equipment
● MAX38904B TDFN EV kit
● 5.5V, 5A DC power supply
● Electronic load capable of 2A
● Digital voltmeter (DVM)
Features
● Evaluates the MAX38904B IC in a 10-pin
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.
(3mm x 3mm) TDFN
● 1.7V to 5.5V Input Range
1) Verify that jumper JU101 is shunted on pins 1 and 2
● 0.6V to 5.0V Resistor Configurable Output Voltage
(Default Output Set to 3.3V)
(EV kit enabled).
2) Connect the 5.5V power supply between the IN and
● Up to 2A Output Current
nearest GND terminal posts.
● Proven 2-Layer 1-oz Copper PCB Layout
● Demonstrates Compact Solution Size
● Fully Assembled and Tested
3) Connect the 2A electronic load between the OUT and
nearest GND terminal posts.
4) Connect the DVM between the OUT and nearest
GND terminal posts.
MAX38904B TDFN EV Kit Files
5) Turn on the power supply.
FILE
DECRIPTION
6) Verify that the voltage at the OUT terminal post is
approximately 3.3V.
EV Kit Bill of
Material
MAX38904B TDFN EV Kit BOM
7) Decrease the power supply to 3.6V (To minimize
MAX38904B TDFN EV Kit PCB Layout
EV Kit Layout
power dissipation at full load).
MAX38904B TDFN EV Kit Schematic
EV Kit Schematic
8) Enable the electronic load.
9) Verify that the voltage at the OUT terminal post is
3.3V within the device and the resistor divider’s
accuracy specifications.
Ordering Information appears at end of data sheet.
319-100302; Rev 0; 2/19
Evaluates: MAX38904B
MAX38904B TDFN Evaluation Kit
EN (Enable)
Detailed Description of Hardware
The EV kit provides a jumper JU101 to enable or disable
the MAX38904B. Refer to Table 1 for jumper setting of
jumper JU101.
The MAX38904B TDFN EV kit evaluates the MAX38904B
in a TDFN package. The MAX38904B is a low noise
linear regulator that delivers 2A of output current with
only 5.1µV
of output noise from 10Hz to 100kHz.
RMS
This regulator requires only 100mV of input-to-output
headroom at full load.
Table 1. EN (JU101)
SHUNT POSITION
DESCRIPTION
Enabled. EN = IN*
Disabled. EN = GND
The MAX38904B TDFN EV kit operates over an input
range of 1.7V to 5.5V. The EV kit comes with the
MAX38904BATD+ installed and the output voltage is set
to 3.3V by 1% accurate feedback resistors R101 and
R102. The EV kit output can be reconfigured to other
voltages from 0.6V to 5.0V by replacing feedback
resistors R101 and R102. Refer to the MAX38904 IC data
sheet for feedback resistor calculation.
1-2*
2-3
*Default position.
Component Suppliers
Ordering Information
SUPPLIER
WEBSITE
www.kemet.com
www.murata.com
www.tdk.com
PART
TYPE
Kemet
MAX38904BEVK#TDFN
#Denotes RoHS
EV Kit
Murata/TOKO
TDK
Samsung Electro-Mechanics
America. Inc.
www.samsungsem.com
Note: Indicate that you are using the MAX38904B when
contacting these component suppliers.
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Evaluates: MAX38904B
MAX38904B TDFN Evaluation Kit
MAX38904B TDFN EV Kit Bill of Materials
ITEM
REF_DES
DNI/DNP
QTY
MFG PART #
MANUFACTURER
VALUE
DESCRIPTION
C0603C473K5RAC;
GRM188R71H473KA61;
GCM188R71H473KA55;
CGA3E2X7R1H473K080AA
KEMET;MURATA;
MURATA;TDK
CAPACITOR; SMT (0603); CERAMIC CHIP; 0.047µUF; 50V;
TOL = 10%; MODEL = X7R; TG = -55°C TO +125°C; TC = X7R
1
C101
—
1
0.047µF
CAPACITOR; SMT (1206); CERAMIC CHIP; 22µF; 6.3V;
TOL = 10%; MODEL = GRM SERIES; TG = -55°C TO +125°C; TC = X7R
2
3
C102, C103
—
—
2
3
GRM31CR70J226K
108-0740-001
MURATA
22µF
EMERSON
NETWORK POWER
CONNECTOR; MALE; PANELMOUNT;
BANANA JACK; STRAIGHT; 1PIN
GND, IN, OUT
108-0740-001
GND_PAD, IN_PAD,
OUT_PAD
EVK KIT PARTS; MAXIM PAD; WIRE; NATURAL; SOLID;
WEICO WIRE; SOFT DRAWN BUS TYPE-S; 20AWG
4
5
6
—
—
—
3
1
1
9020 BUSS
PEC03SAAN
5002
WEICO WIRE
SULLINS
MAXIMPAD
PEC03SAAN
N/A
JU101
POK
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;
KEYSTONE
7
8
R101
R102
—
—
1
1
CRCW0603909KFK
ERJ-3EKF2003
VISHAY DALE
PANASONIC
909K
200K
RESISTOR; 0603; 909KΩ; 1%; 100PPM; 0.1W; THICK FILM
RESISTOR; 0603; 200KΩ; 1%; 100PPM; 0.1W; THICK FILM
CRCW0603100KFK;
RC0603FR-07100KL;
RC0603FR-13100KL;
ERJ-3EKF1003;
VISHAY;YAGEO;
YAGEO;PANASONIC;
YAGEO
9
R103
SU1
—
—
1
1
100K
RESISTOR; 0603; 100K; 1%; 100PPM; 0.10W; THICK FILM
AC0603FR-07100KL
TEST POINT; JUMPER; STR; TOTAL LENGTH = 0.256IN; BLACK;
INSULATION = PBT CONTACT = PHOSPHOR BRONZE;
COPPER PLATED TIN OVERALL
SULLINS
ELECTRONICS CORP.
10
STC02SYAN
STC02SYAN
TEST POINT; PIN DIA = 0.1IN; TOTAL LENGTH = 0.3IN; BOARD HOLE = 0.04IN;
BLACK; PHOSPHOR BRONZE WIRE SILVER PLATE FINISH;
11
12
13
TP_GND
TP_OUT
U1
—
—
—
1
1
1
5001
5000
KEYSTONE
KEYSTONE
MAXIM
N/A
N/A
TEST POINT; PIN DIA = 0.1IN; TOTAL LENGTH = 0.3IN; BOARD HOLE = 0.04IN;
RED; PHOSPHOR BRONZE WIRE SILVER PLATE FINISH;
EVKIT PART - IC; MAX38904B-ATD+; 2A LOW NOISE LDO
LINEAR REGULATOR; PACKAGE OUTLINE DEVICE: 21-0137
MAX38904B-ATD+
MAX38904B-ATD+
14
15
16
PCB
C104
R104
R105
—
1
0
0
MAX38904BTDFN
MAXIM
N/A
PCB
OPEN
OPEN
SHORT
PCB:MAX38904BTDFN
DNP
DNP
DNP
N/A
N/A
N/A
PACKAGE OUTLINE 0603 NON-POLAR CAPACITOR
PACKAGE OUTLINE 0603 RESISTOR
PACKAGE OUTLINE 0603 RESISTOR
N/A
17
0
N/A
TOTAL
19
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Evaluates: MAX38904B
MAX38904B TDFN Evaluation Kit
MAX38904B TDFN EV Kit Schematic
1 5
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Evaluates: MAX38904B
MAX38904B TDFN Evaluation Kit
MAX38904B TDFN EV Kit PCB Layout Diagrams
1.0’’
1.0’’
MAX38904B TDFN EV Kit PCB Layout—Top Silkscreen
MAX38904B TDFN EV Kit PCB Layout—Bottom Layer
1.0’’
1.0’’
MAX38904B TDFN EV Kit PCB Layout—Top Layer
MAX38904B TDFN EV Kit PCB Layout—Bottom Silkscreen
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Evaluates: MAX38904B
MAX38904B TDFN Evaluation Kit
Revision History
REVISION REVISION
PAGES
CHANGED
DESCRIPTION
NUMBER
DATE
0
2/19
Initial release
—
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Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses
are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time.
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Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
2019 Maxim Integrated Products, Inc.
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