LMZ14203 Simple Switcher(R) Step-Down Power Module 3.3V/5.0V Selectable OutputDesigned by Ivory Circuits in United Kingdom
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The store is fully operational. Still, some deliveries might take longer. Please check with your local post service for the latest updates on deliveries. In Ivory Circuits we will be doing our best to provide the fastest possible dispatch of your orders. We will keep you updated on how the ongoing COVID-19 situation will be affecting us, and more importantly, you our valued customers.
Stay safe and thank you once again for your preference.
Ivory Circuits Team
This voltage-selectable power supply/step-down module, based on the LMZ14203 from TI is an optimal solution for powering those systems on the electron-hungry side.
The modules can provide either 3.3V or 5.0V fixed output by simply sliding a little switch. Its maximum rated current is 3.0 A.
We designed this board honouring the retired design from Sparkfun that many people (like us) seemed to love. We believe that it was a convenient and reliable solution for powering our digital projects with high-current demand and great stability.
Please see the attached pictures of the boards being tortured ...ehem, tested with an electronic load.
Some key points to consider:
Thermals are great! Even without heatsink. However, please install the heatsink if your load/system will drain considerable current levels. Otherwise, if you like living dangerously just leave the regulator as the PCB will sink a fair amount of heat.
The absolute maximum output current is 3.0 A. The input ferrite is rated at 3.0 A and thus it will likely get hot at higher currents before the LMZ shuts down itself (...or dies :( )
We DO NOT recommend hot-swapping the output voltage. If you need to change from 3.3V to 5.0V (or vice-versa) please unplug the load or the power supply and change the voltage afterwards.
The maximum input voltage is 32V. Do NOT exceed this!
If you have any questions, please contact us!
Ivory Circuits Wicked Team
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