2

Evaluate: MAX17501A/MAX17501E

in TDFN Packages

MAX17501A/MAX17501E Evaluation Kits

Quick Start

Recommended Equipment

• MAX17501AorMAX17501EEVkit

• 4.5Vto60V,1ADCinputpowersupply

• Loadcapableofsinking500mA

• Digitalvoltmeter(DVM)

• Functiongenerator

Procedure

TheEVkitsarefullyassembledandtested.Followthesteps

belowtoverifyboardoperation.Caution: Do not turn on

power supply until all connections are completed.

1) Setthepowersupplyatavoltagebetween4.5Vand

60V.Disablethepowersupply.

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) Enabletheload.

7) Verify that the DVM displays the expected voltage.

To turn on/turn off the part from EN/UVLO, follow the

stepsbelow:

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

between4.5Vand60V.

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.

Careshouldbetakeninboardlayoutandsystemswiring

topreventviolationoftheabsolutemaximumratingofthe

FB/VO pin under short-circuit conditions. Under such con-

ditions, it is possible for the ceramic output capacitor to

oscillatewiththeboardorwiringinductancebetweenthe

capacitorandshort-circuitedload,andtherebycausethe

absolutemaximumratingofFB/VO(-0.3V)tobeexceed-

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

absolutemaximumratingofFB/VOisnotexceeded.

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