Datasheet

MAX15066 Evaluation Kit
Evaluates: MAX15066
2 ______________________________________________________________________________________
Quick Start
Recommended Equipment
• MAX15066EVkit
• 12V,4ADCpowersupply
• Loadcapableof4A
• Digitalvoltmeter
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.
1) Connect the positive terminal of the 12V supply to
the IN connector and the negative terminal to the
nearest GND connector.
2) Connect the positive terminal of the 4A load to the
VOUT connector and the negative terminal to the
nearest GND connector.
3) Connect the digital voltmeter across the VOUT
connector and the nearest GND connector.
4) Verify that a shunt is not installed on the EN jumper.
5) Turn on the DC power supply.
6) Enable the load.
7) Verify that the voltmeter displays 1.8V.
Detailed Description of Hardware
The MAX15066 EV kit evaluates the MAX15066
current-mode, synchronous, DC-DC buck converter. The
EV kit is preset for 1.8V and delivers an output current
up to 4A with high efficiency. The EV kit operates from
an input voltage of 4.5V to 16V. The EV kit provides an
adjustable output voltage from 0.606V to 90% of the
input voltage through resistor-dividers R5 and R6. The
EV kit features independent device-enable control (EN)
and power-good (PGOOD) signals that allow for flexible
power sequencing.
Soft-Start (SS)
The EV kit utilizes an adjustable soft-start function to
limit inrush current during startup. The soft-start time is
adjusted by the value of C7, the external capacitor from
SS to GND. By default, C7 is currently 0.01μF, which
gives a soft-start time of approximately 1.2ms. To adjust
the soft-start time, determine C7 using the following
formula:
C7 = (5μA x t
SS
)/0.606V
where t
SS
is the required soft-start time in seconds and
C7 is in farads.
Note: Indicate that you are using the MAX15066 when contacting these component suppliers.
Component suppliers
SUPPLIER PHONE WEBSITE
Murata Electronics North America, Inc. 770-436-1300 www.murata-northamerica.com
Panasonic Corp. 800-344-2112 www.panasonic.com
Sullins Electronics Corp. 760-744-0125 www.sullinselectronics.com
TOKO America, Inc. 847-297-0070 www.tokoam.com