MAX15103EVKIT# Maxim Integrated, MAX15103EVKIT# Datasheet - Page 2

• Manufacturer Part Number: MAX15103EVKIT#
• Description: Power Management IC Development Tools MAX15103 Eval Kit
• Manufacturer: Maxim Integrated
• Series: MAX15103r

Specifications of MAX15103EVKIT#

• Rohs: yes

Note: Indicate that you are using the MAX15101, MAX15102, or MAX15103 when contacting these component suppliers.
• MAX15101, MAX15102, or MAX15103 EV kit
• 1.7V to 5.5V, 3A DC power supply
• Load capable of sinking up to 3A
• Digital voltmeter
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
2) Connect the positive terminal of the load to the OUT
3) Connect the digital voltmeter across the OUT PCB
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.
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.
Murata Electronics North America, Inc.
Samsung Electro-Mechanics
Taiyo Yuden
TDK Corp.
Detailed Description of Hardware
IN PCB pad and the negative terminal to the nearest
PGND PCB pad.
PCB pad and the negative terminal to the nearest
PGND PCB pad.
pad and the nearest PGND PCB pad.
Evaluate: MAX15101/MAX15102 /MAX15103
SUPPLIER
_________________________________________________________________ Maxim Integrated Products 2
Recommended Equipment
Regulator Enable (EN)
Quick Start
Procedure
770-436-1300
949-797-8047
800-348-2496
847-803-6100
PHONE
Table 1. Regulator Enable (EN) Jumper
JU1 Description
*Default position.
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 t
lowing formula:
where t
C3 is in nanofarads. C3 should be a minimum 4.7nF
capacitor between SS_BYP and GND.
The EV kit can be adjusted from 0.6V up to [V
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:
where V
Not installed
POSITION
Installed*
SHUNT
SS
FB
is the required soft-start time in seconds and
is equal to the 0.6V and V
Bypass /Soft-Start Input (SS_BYP)
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R1 R2 V
t
SS
=
= 6.315 10
Connected to IN
Pulled to GND
Setting the Output Voltage
Component Suppliers
through R7


(
EN PIN
OUT
×
WEBSITE
/ V
-5
FB
×
)
C3
−
OUT
1
DEVICE OUTPUT


SS
is the output.
Disabled
Enabled
using the fol-
IN
- 200mV]