Datasheet

2
Evaluate: MAX17501A/MAX17501E
in TDFN Packages
MAX17501A/MAX17501E Evaluation Kits
Quick Start
Recommended Equipment
• MAX17501AorMAX17501EEVkit
• 4.5Vto60V,1ADCinputpowersupply
• Loadcapableofsinking500mA
• Digitalvoltmeter(DVM)
• Functiongenerator
Procedure
TheEVkitsare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) Setthepowersupplyatavoltagebetween4.5Vand
60V.Disablethepowersupply.
2) Connect the positive terminal of the power supply
to the VIN PCB pad and the negative terminal to the
nearest PGND PCB pad. Connect the positive termi-
nal of the 500mA load to the VOUT PCB pad and the
negative terminal to the nearest PGND PCB pad.
3) Connect the DVM across the VOUT PCB pad and the
nearest PGND PCB pad.
4) Verify that a shunt is installed across pins 1-2 on
jumper JU1.
5) Turn on the DC power supply.
6) Enabletheload.
7) Verify that the DVM displays the expected voltage.
To turn on/turn off the part from EN/UVLO, follow the
stepsbelow:
1) Remove resistors R1 and R2 and the jumper installed
across pins 1-2 on jumper JU1.
2) Connect the power supply to the EV kit and turn on
the power supply. Set the power supply at a voltage
between4.5Vand60V.
3) Connect the function generator output to the
EN/UVLO test loop.
4) EN/UVLO rising threshold is 1.24V and falling thresh-
old is 1.11V. Make sure that the voltage-high and
voltage-low levels of the function generator output are
greater than 1.24V and less than 1.11V, respectively.
5) When powering down the EV kits, first disconnect the
function generator output from the EN/UVLO test loop
and then turn off the DC power supply.
Careshouldbetakeninboardlayoutandsystemswiring
topreventviolationoftheabsolutemaximumratingofthe
FB/VO pin under short-circuit conditions. Under such con-
ditions, it is possible for the ceramic output capacitor to
oscillatewiththeboardorwiringinductancebetweenthe
capacitorandshort-circuitedload,andtherebycausethe
absolutemaximumratingofFB/VO(-0.3V)tobeexceed-
ed. This parasitic board or wiring inductance should be
minimized and the output voltage waveform under short-
circuit operation should be verified to ensure that the
absolutemaximumratingofFB/VOisnotexceeded.
EV Kit-Specific Component List
*EP = Exposed pad.
Note: Indicate that you are using the MAX17501 when contacting these component suppliers.
Component Suppliers
EV KIT DESIGNATION DESCRIPTION
MAX17501ATEVKIT#
U1
Buck converter (10 TDFN-EP*)
Maxim MAX17501AATB+
— PCB: MAX17501AT EVALUATION KIT
MAX17501ETEVKIT#
U1
Buck converter (10 TDFN-EP*)
Maxim MAX17501EATB+
— PCB: MAX17501ET EVALUATION KIT
SUPPLIER PHONE WEBSITE
Coilcraft, Inc. 847-639-6400 www.coilcraft.com
Murata Electronics North America, Inc. 770-436-1300 www.murata-northamerica.com
Panasonic Corp. 800-344-2112 www.panasonic.com