Datenblatt für MAX15101-03 Eval Kits von Analog Devices Inc./Maxim Integrated

_maxim Integrated“.
General Description
The MAX15101/MAX15102 /MAX15103 evaluation kits
(EV kits) provide a proven design to evaluate the
MAX15101/MAX15102 /MAX15103 small, low-dropout
linear regulators capable of delivering up to 1A, 2A, or
3A in a wafer-level package (WLP). The EV kits are preset
for 1.5V output at load currents of 1A for the MAX15101,
2A for the MAX15102, and 3A for the MAX15103. The EV
kits offer an enable input and power-good output and are
capable of operating from a 1.7V to 5.5V supply. Refer to
the Operating Region and Power Dissipation section in
the respective IC data sheet when operating at the higher
end of the input supply range.
Features
S 1.7V to 5.5V Input Voltage Range
S Output Current
1A for MAX15101
2A for MAX15102
3A for MAX15103
S Output Voltage Range: 0.6V Up to (VIN - 200mV)
S 200mV Dropout Guaranteed at 3A
S Enable Input/Power-Good Output
S Proven PCB Layout
S Fully Assembled and Tested
DESIGNATION QTY DESCRIPTION
C1 1
2.2FF Q10%, 10V X7R ceramic
capacitor (0603)
TDK C1608X5R1A225M
C2 1
22FF Q10%, 6.3V X5R ceramic
capacitor (0603)
Samsung CL10A226MQ8NRNE
Taiyo Yuden
AMK107BBJ226MA-T
C3 1
0.1FF Q10%, 50V X7R ceramic
capacitor (0603)
Murata GRM188R71H104K
TDK C1608X7R1H104K
C4 0
Not installed, aluminum
electrolytic capacitor
(12.5mm x 25mm)
DESIGNATION QTY DESCRIPTION
C5, C7 0Not installed, ceramic capacitors
(0805)
C6, C8 0Not installed, ceramic capacitors
(1206)
JU1 1 2-pin header
R1 1 909I Q1% resistor (0603)
R2 1 604I Q1% resistor (0603)
R5, R7 2100kI Q5% resistors (0603)
R6 0 Not installed, resistor (0603)
U1 1 See the EV Kit-Specific
Component List
— 1 Shunt
— 1 PCB: MAX15101/2/3
EVALUATION KIT
PART DESIGNATION DESCRIPTION
MAX15101EVKIT#
U1
1A low-dropout linear regulator (15 WLP)
Maxim MAX15101EWL+T
MAX15102EVKIT# 2A low-dropout linear regulator (15 WLP)
Maxim MAX15102EWL+T
MAX15103EVKIT# 3A low-dropout linear regulator (15 WLP)
Maxim MAX15103EWL+T
MAX15101/MAX15102 /MAX15103 Evaluation Kits
Evaluate: MAX15101/MAX15102 /MAX15103
For pricing, delivery, and ordering information, please contact Maxim Direct at
1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
Component List
EV Kit-Specific Component List
19-6022; Rev 0; 9/11
Ordering Information appears at end of data sheet.
SUPPLIER PHONE WEBSITE
Murata Electronics North America, Inc. 770-436-1300 www.murata-northamerica.com
Samsung Electro-Mechanics 949-797-8047 www.sem.samsung.com
Taiyo Yuden 800-348-2496 www.t-yuden.com
TDK Corp. 847-803-6100 www.component.tdk.com
SHUNT
POSITION EN PIN DEVICE OUTPUT
Installed* Connected to IN Enabled
Not installed Pulled to GND
through R7 Disabled
MAX15101/MAX15102 /MAX15103 Evaluation Kits
Evaluate: MAX15101/MAX15102 /MAX15103
2Maxim Integrated
Quick Start
Recommended Equipment
• MAX15101,MAX15102,orMAX15103EVkit
• 1.7Vto5.5V,3ADCpowersupply
• Loadcapableofsinkingupto3A
• Digitalvoltmeter
Procedure
The EV kits are fully assembled and tested. Follow the
steps below to verify the board operation. Caution: Do
not turn on power supply until all connections are
completed.
1) Connect the positive terminal of the 5V supply to the
IN PCB pad and the negative terminal to the nearest
PGND PCB pad.
2) Connect the positive terminal of the load to the OUT
PCB pad and the negative terminal to the nearest
PGND PCB pad.
3) Connect the digital voltmeter across the OUT PCB
pad and the nearest PGND PCB pad.
4) Verify that a shunt is installed on jumper JU1.
5) Turn on the DC power supply.
6) Enable the load.
7) Verify that the voltmeter displays 1.5V.
Detailed Description of Hardware
Regulator Enable (EN)
The MAX15101/MAX15102/MAX15103 feature an enable
input. For normal operation, a shunt should be installed
on jumper JU1. To disable the output, remove the shunt
on JU1 and the EN pin is pulled to GND through resistor
R7. See Table 1 for JU1 settings.
Bypass /Soft-Start Input (SS_BYP)
The MAX15101/MAX15102/MAX15103 utilize an adjust-
able soft-start function to limit inrush current during
startup and reduce the output noise. The soft-start time
is adjusted by the value of C3, the external capacitor
from SS_BYP to GND. By default, C3 is currently 0.1FF,
which gives a soft-start time of approximately 6.5ms. To
determine the soft-start time, determine tSS using the fol-
lowing formula:
SS -5
t = 6.315 10 C3××
where tSS is the required soft-start time in seconds and
C3 is in nanofarads. C3 should be a minimum 4.7nF
capacitor between SS_BYP and GND.
Setting the Output Voltage
The EV kit can be adjusted from 0.6V up to [VIN - 200mV]
by changing the values of resistors R1 and R2. To deter-
mine the value of the resistor-divider, set R2 to 604I, and
then use the following equation to calculate R1:
( )
OUT FB
R1 R2 V / V 1

= −

where VFB is equal to the 0.6V and VOUT is the output.
Component Suppliers
Table 1. Regulator Enable (EN) Jumper
JU1 Description
Note: Indicate that you are using the MAX15101, MAX15102, or MAX15103 when contacting these component suppliers.
*Default position.
.zo Sc Veex
MAX15101/MAX15102 /MAX15103 Evaluation Kits
Evaluate: MAX15101/MAX15102 /MAX15103
3Maxim Integrated
Figure 1. MAX15101 EV Kit Schematic
MAX15101/MAX15102 /MAX15103 Evaluation Kits
Evaluate: MAX15101/MAX15102 /MAX15103
4Maxim Integrated
Figure 2. MAX15102 EV Kit Schematic
MAX15101/MAX15102 /MAX15103 Evaluation Kits
Evaluate: MAX15101/MAX15102 /MAX15103
5Maxim Integrated
Figure 3. MAX15103 EV Kit Schematic
. NAXI5101/2/J EVALUAWM m a. .o C 3;” I. H
1.0’’
1.0’’
1.0’’
MAX15101/MAX15102 /MAX15103 Evaluation Kits
Evaluate: MAX15101/MAX15102 /MAX15103
6Maxim Integrated
Figure 4. MAX15101/MAX15102/MAX15103 EV Kits
Component Placement Guide—Component Side
Figure 5. MAX15101/MAX15102/MAX15103 EV Kits PCB
Layout—Component Side
Figure 6. MAX15101/MAX15102/MAX15103 EV Kits PCB
Layout—Inner Layer 2 GND
1.0’’ 1.0’’
MAX15101/MAX15102 /MAX15103 Evaluation Kits
Evaluate: MAX15101/MAX15102 /MAX15103
7Maxim Integrated
Figure 7. MAX15101/MAX15102/MAX15103 EV Kits PCB
Layout—Inner Layer 3 Power
Figure 8. MAX15101/MAX15102/MAX15103 EV Kits PCB
Layout—Solder Side
PART TYPE
MAX15101EVKIT#EV Kit
MAX15102EVKIT#EV Kit
MAX15103EVKIT#EV Kit
MAX15101/MAX15102 /MAX15103 Evaluation Kits
Evaluate: MAX15101/MAX15102 /MAX15103
8Maxim Integrated
Ordering Information
#Denotes RoHS compliant.
maxim Integratedv
REVISION
NUMBER
REVISION
DATE DESCRIPTION PAGES
CHANGED
0 9/11 Initial release —
MAX15101/MAX15102 /MAX15103 Evaluation Kits
Evaluate: MAX15101/MAX15102 /MAX15103
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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Revision History