Datasheet

MaximIntegrated │ 2
MAX15062A Evaluation Kit Evaluates: MAX15062A
www.maximintegrated.com
Quick Start
Recommended Equipment
● MAX15062AEVkit
● 60Vadjustable,0.5ADCpowersupply
● Electronicloadupto300mA
● Voltmeter
Procedure
The EV kit is fully assembled and tested. Follow the steps
below to verify board operation. Caution: Do not turn on
the power supply until all connections are completed.
1) Verify that shunts are installed on jumpers JU1 and
JU2(EN/UVLO).
2) VerifythatjumperJU3(MODEPFMoperation)isopen .
3) Set the electronic load to constant-current mode,
300mA, and disable the electronic load.
4) Connecttheelectronicload’spositiveterminaltothe
VOUTPCBpad.Connectthenegativeterminaltothe
GNDPCBpad.
5) Connect the voltmeter across the VOUT and GND
PCBpads.
6) Set the power-supply output to 24V. Disable the power
supply.
7) Connectthe24Vpower-supplyoutputtotheVINPCB
pad.ConnectthesupplygroundtotheGNDPCBpad.
8) TurnonthepowersupplyandverifythatVOUTisat
3.3V with respect to GND.
9) EnabletheelectronicloadandverifythatVOUTisat
3.3V with respect to GND.
Detailed Description
The MAX15062A evaluation kit (EV kit) is a fully assem-
bled and tested circuit board that demonstrates the
performance of the MAX15062A 60V, 300mA ultra-small,
high-efficiency, synchronous step-down converter. The
EV kit operates over a wide 4.5V to 60V input voltage
range, and provides up to 300mA at the preset 3.3V out-
put. The device features undervoltage lockout, overcur-
rent protection, and thermal shutdown. The EV kit switch-
es at a fixed frequency of 500kHz, and delivers a peak
efficiency of 90% with the supplied components.
TheEVkitincludesanEN/UVLOPCBpadandjumpers
JU1 andJU2 to enable control of the converter output.
The MODE PCB pad and jumper JU3 are provided for
selecting the mode of operation of the converter. The
VCCPCBpadhelpsmeasuretheinternalLDOvoltage.
An additional RESETPCBpadisavailableformonitoring
the open-drain logic output.
Enable Control (JU1, JU2)
The EN/UVLO pin of the device serves as an on/off
control while also allowing the user to program the input
undervoltage lockout (UVLO) threshold. Jumpers JU1
andJU2configuretheEVkit’soutputforturn-on/turn-off
control.Installashuntacrosspins1-2onjumperJU2to
disableVOUT.SeeTable1forproperjumpersettings.
Additionally, resistors R1 and R2 are included to set the
UVLOtoadesiredturn-onvoltage.RefertotheEnable
Input (EN/UVLO), Soft-Start section in the MAX15062A/
MAX15062BICdatasheet foradditionalinformationon
settingtheUVLOthresholdvoltage.
Table 1. Enable Control (EN/UVLO)
*Default position.
SHUNT POSITION
EN/UVLO PIN VOUT OUTPUT
JU1 JU2
1-2 Open
ConnectedtoVIN Enabled
Open 1-2
ConnectedtoGND Disabled
1-2* 1-2
Connectedtomidpointofthe
R1, R2 resistor-divider
EnabledatVIN≥4.5V