LNK3206GQ buck boost output voltage not regulated to set value
I am bench testing the buck boost topology with LNK3206GQ ic . schematic is attched for the reference .
The dc-dc converter is not able to produce exact 70V at the output even though the design components used are suggested by PI expert tool.
follwoing are the actual testing results at constant current load of 130 mA.
Vout=66.7volts @Vin_min =60V and Vout=65 volts @Vin_max =160V
Please check and let me know what could have gone wrong ?
|LNK3206GQ based Buck-Boost.pdf||44.36 KB|