Datasheet

MaximIntegrated │ 2
MAX15062B Evaluation Kit Evaluates: MAX15062B
www.maximintegrated.com
Quick Start
Recommended Equipment
● MAX15062B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
5V with respect to GND.
9) EnabletheelectronicloadandverifythatVOUTisat
5V with respect to GND.
Detailed Description
The MAX15062B evaluation kit (EV kit) is a fully assem-
bled and tested circuit board that demonstrates the per-
formance of the MAX15062B 60V, 300mA ultra-small,
high-efficiency, synchronous step-down converter. The
EV kit operates over a wide 6.5V to 60V input voltage
range, and provides up to 300mA at the preset 5V output.
The device features undervoltage lockout, overcurrent
protection, and thermal shutdown. The EV kit switches
at a fixed frequency of 500kHz, and delivers a peak
efficiency of 92% 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≥6.5V